Answer:
I don't know I am sorry
A bank robber i driving north on Catchem Lane at 90 mph to avoid be arreted. Peed
velocity
acceleration
The robber is driving at a constant velocity of 90 mph and is not accelerating/decelerating, which means their acceleration is 0 mph/sec.
What is velocity?A vector quantity that has magnitude and direction is velocity. In time, it is the rate at which the displacement changes. You can calculate speed using the formula speed = distance/time. This is a way of measuring how fast something is moving in a particular direction. Acceleration, or the rate at which an object's velocity changes, is closely related to velocity. As a vector quantity, velocity has both direction and magnitude. To maintain constant velocity, the object must be moving in the same direction at a constant velocity.
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The complete question is as follows:
A bank robber is driving north on Catchem Lane at 90 mph to avoid be arrested. Calculate:
Speed
Velocity
Acceleration
The molar mass of bismuth (\ce{Bi}BiB, i) is \pu{208. 98 g/mol}208. 98 g/mol208, point, 98, space, g, slash, m, o, l. Calculate the mass in grams of a sample of \ce{Bi}BiB, i containing \pu{7. 35x10^23}7. 35×10 23 7, point, 35, times, 10, start superscript, 23, end superscript atoms
The mass in grams of a sample of Bi with 7.35 1023 atoms should be 255 grams.
What does molar mass in chemistry refer to?A substance's mass is measured in grams per mole, or molar mass. The molar mass of a substance can be determined, as demonstrated in this video, by adding the molar masses of the substance's constituent atoms. The substance's molar mass can then be used to determine the number of moles in the substance and converted to mass.
The molar mass of Bi is 208.98 g/mol.
1 mole Bi = 208.98 g/mol = 6.023×10²³ no of atoms
So, the mass in grams should be
mass = ( 208.98 g/mol ×7.35 × 10²³) ÷ (6.023×10²³)
mass = 255 grams.
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What mass of HCI is needed to
generate 45.2 g of AICI3?
2AI + 6HCI → 2AICI3 + 3H2
AICI3: 133.33 g/mol
HCI: 36.46 g/mol
[?] g AlCl3
Identify the following chemical reaction: 8 Cu + S8 → 8 CuS
Combination reaction: 8 Cu + S8 8 CuS in terms of chemistry. There are multiple reactants and multiple products.
Combination reaction: what is it?Combination reactions occur when two or more substances combine to form a single new substance. Composite processes are also referred to as synthetic reactions. The typical structure of an active components is A+BAB. A combination reaction occurs when two components combine to form a compound.
What qualities make into a combination reaction?A combination synthesis can involve any number of different reactants. A non-metal and a metal combinations reaction every time leads to an electrolytic process. Combination conformational changes fall into one of three categories. In particular, they consist of two elements combined, two compounds combined, and one element combined with one compound.
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How many moles of CH3CH2OH are contained in 548 mL of 0.0788 M CH3CH2OH solution?
0.0432 moles of CH3CH2OH are contained in 548 mL of a 0.0788 M CH3CH2OH solution.
what is molarity?Molarity is a unit of concentration that expresses the amount of solute in a solution in terms of moles of solute per liter of solvent. It is represented by the symbol M. It is calculated by dividing the number of moles of solute by the number of liters of solvent in the solution. For example, a 0.5 M solution of NaCl would contain 0.5 moles of NaCl dissolved in every liter of water.
To determine the number of moles of a solute in a solution, you can use the formula: moles = (concentration (M) x liters of solution).
In this case, the concentration of the CH3CH2OH solution is given as 0.0788 M and the volume is given as 548 mL. Converting mL to L by multiplying it by 10^-3, we get 0.548 L. By applying the formula, moles = 0.0788 M x 0.548 L = 0.0432 moles of CH3CH2OH.
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In the lab, chemist analyzed a sample of methanol and found that it was made of 6. 20 g of carbon, 4. 10 g of hydrogen, and 15. 90 g of oxygen. What is the percent composition of each element? Round each answer to the tenths place
The percentage composition of carbon is 19.37% and percentage of oxygen is 49.68% and percentage composition of hydrogen is 12.8%.
According to question,
6.20g of carbon, 4.10g of hydrogen and 15.90g of oxygen is present in total sample of methanol.
Total mass of methanol is=mass of carbon x 1+ mass of oxygen x 1+mass of hydrogen x 4
Total mass= 12x1+16x1+1x4
Total mass=32g
Now, to find the percentage composition of each element use the total mass and given mass of element.
The ratio of the amounts of each element to the sum of the individual element amounts present in the compound, multiplied by 100, is the definition of the percentage composition of a given compound. In this instance, the quantity is expressed in gram of the constituent ingredients.
Percentage composition[tex]=\frac{mass of an element}{total mass}*100[/tex]
Percentage composition of carbon=[tex]\frac{6.20}{32} *100[/tex]
On solving we get,
Percentage composition of carbon=19.37%
Percentage composition of oxygen=[tex]\frac{15.90}{32}*100[/tex]
On solving we get,
Percentage composition of oxygen=49.68%
Percentage composition of hydrogen=[tex]\frac{4.10}{32}*100[/tex]
On solving we get,
Percentage composition of hydrogen=12.8%
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Which of the following is the net ionic equation for the reaction between aqueous sodium fluoride and hydrochloric acid? (A) NaF (aq) + HCI (aq) → Naci (aq) + HF (aq) (B) Na+ (aq) + F- (aq) + H+ (aq) + CI+ (aq) → Na+ (aq) + Cl - (aq) + HF (aq) (C) Na+ (aq) + CI+ (aq) → NaCl (aq) (D) F- (aq) + H+ (aq) → HF (aq)
The net ionic equation for the reaction between aqueous sodium fluoride and hydrochloric acid is B. Na+ (aq) + F- (aq) + H+ (aq) + Cl- (aq) → Na+ (aq) + Cl- (aq) + HF (aq)
This is the net ionic equation for the reaction between aqueous sodium fluoride and hydrochloric acid. The balanced equation for this reaction is NaF (aq) + HCl (aq) → NaCl (aq) +HF (aq).
The net ionic equation is derived by canceling out the spectator ions, which are ions that don't participate in the chemical reaction. In this case, Na+ and Cl- are spectator ions, which means that they don't participate in the reaction and are present in the same form on both sides of the equation. Therefore, they are cancelled out, leaving the net ionic equation Na+ (aq) + F- (aq) + H+ (aq) + Cl- (aq) → Na+ (aq) + Cl- (aq) + HF (aq).
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How many grams of Pb would be required to make 119 g H2O? Pb+PbO2+2H2SO4=2PbSO4+2H2O. Pb: 207.2 g/mol. H20: 18.o2 g/mol
The amount, in grams of Pb that would be required to make 119 g of [tex]H_2O[/tex] will be 685.17 grams.
Stoichiometric problemThe balanced equation of the reaction would be as follows:
[tex]Pb+PbO_2+2H_2SO_4--- > 2PbSO_4+2H_2O[/tex]
The mole ratio of Pb to [tex]H_2O[/tex] is 1:2.
Recall that, mole = mass/molar mass.
Molar mass of [tex]H_2O[/tex] = 18 g/mol
Mole of 119 g of [tex]H_2O[/tex] = 119/18 = 6.61 mol
From the established mole ratio, the equivalent mole of Pb that would be required will be:
1/2 x 6.61 = 3.31 mol
Mass = mole x molar mass
The molar mass of Pb is 207 g/mol
Mass of 3.31 mol Pb = 3.31 x 207
= 685.17 grams
In other words, the amount of Pb that would be required to make 119 g of [tex]H_2O[/tex] according to the illustrated reaction will be 685.17 grams.
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Why are incandescent light bulbs considered to be lower efficiency than LED bulbs?
#1: A greater percentage of the energy output of the incandescent bulb goes toward heat.
#2: A greater amount of energy is required for the same light output from the LED bulb.
#3: A smaller amount of energy is wasted by the incandescent bulb.
#4: A smaller percentage of the energy output of the LED bulb goes toward light.
A smaller amount of energy is wasted by the incandescent bulb.
Why are incandescent light bulbs less efficient?Because so much energy (90%) is used to produce heat instead of light, incandescent lights are the least efficient of all current lighting options.A typical incandescent source emits around 2% of its energy as usable visible light and the rest 98% as waste heat. Incandescent bulbs have a high likelihood of burning out regularly and need to be replaced annually.Incandescent bulbs are inefficient since they only produce 10% of light and 90% of heat. Additionally, incandescent lights don't last as long as CFLs and LEDs do. A 12-watt LED bulb lasts 25,000 hours, compared to 1,000 hours for an incandescent bulb, 10,000 hours for a CFL, and 15 hours for a CFL.To learn more about incandescent light bulbs refers to:
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The "Great Ocean Conveyor Belt" is an ocean current that helps move heat energy around the earth and keeps our atmosphere more liveable. This ocean current is caused by differences in water density. These differences are caused mainly by
A.) Chemical content and surface winds
B.) Salinity and surface winds
C.) Water temperatures and salinity
D.) Water temperatures and geographical formations
I NEED ANSWER ASAP
The ocean current is caused by differences in water density. The difference in the density of water is mainly caused by the temperature and salinity of water.
What is density?Density of a substance is the measure of its mass per unit volume. It describes how closely its particles are packed within a given volume. Density of a substance is dependent on the temperature and pressure also.
The density of water is affected by the temperature and salinity. Water has its maximum density at 4 ° C. The more saline is water, more will be the density. Because, more ions or salts makes water denser.
The density vary with variations in temperature and salinity. This variation causes water currents from the denser areas to the less dense areas. Ocean currents are also affected by the gravity.
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Which freezes faster, hot water or cold water?
Answer: Hot water freezes faster.
Explanation: It is because of the Mpemba effect taking place, and even though it seems impossible, it could have less dissolved gas in it, or even take up less mass because of this.
anybody know the answer for these
KI - Ionic compound, KCl - Ionic compound,
C₆H₁₂O₆ - Covalent compound, KNO₃ - Ionic compound,
C₆H₄Cl₂ - Covalent compound, C₆H₅COOH - Covalent compound
CH₃COOH - Covalent compound, Parafin wax - Covalent
HCl - Covalent compound
What are ionic and covalent compounds?Ionic compounds can be classified as compounds formed between cation ions and an anion. A cation can be described as an electropositive ion and has the tendency to donate valence electrons. Similarly, anions are electronegative ions and have a tendency to accept electrons.
In an ionic compound, an ionic bond contains the complete transfer of electrons, therefore, there exists an electrostatic force of attraction that forms a strong bond.
In a covalent compound, the covalent bond exhibits the mutual sharing of electrons. Shared pairs of electrons are hard to give away as nuclei of two chemical elements together share the electrons and produce a bond stronger.
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Which of the following is incorrect:
A. Protons contribute to the mass of the atom
B. Electrons have a negative charge
c. Neutrons are found in the nucleus of the atom
d. Electrons, neutrons and protons all have the same mass
Answer: D
Explanation:
electrons have no mass
Write the expression for the solubility product constant for:Ca3(PO4)2 (s) 3Ca2+ (aq) + 2PO43- (aq)
The solubility product constant (Ksp) for a substance is the equilibrium constant for the reaction between the dissolved ions of the substance and its solid form. In the case of Ca3(PO4)2, the equation for the reaction in water is: Ca3(PO4)2 (s) ↔ 3Ca2+ (aq) + 2PO43- (aq)
The solubility product constant, Ksp, for this reaction is represented by the equation:
Ksp = [Ca2+]^3 * [PO43-]^2Where [Ca2+] represents the concentration of calcium ions in molarity and [PO43-] represents the concentration of phosphate ions in molarity.
Solubility refers to the maximum amount of a substance that can dissolve in a given solvent at a given temperature and pressure. For example, the solubility of sugar in water is the maximum amount of sugar that can dissolve in water at a given temperature and pressure. The solubility of a substance can be influenced by temperature, pressure, and the presence of other dissolved substances.
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a sample of n2o gas has a density of 3.10 g/l at 298 k.what must be the pressure of the gas (in mmhg)?
To determine the pressure of a gas, we need to use the ideal gas law, which states that PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant, and T is the temperature in Kelvin.
We can re-arrange the ideal gas law to solve for pressure:
P = (nRT) / V
We are given that the density of the gas is 3.10 g/L, which we can use to calculate the volume of the gas. Density is defined as mass/volume, so we can rearrange the equation to find volume:
V = mass/density
We know the density is 3.10 g/L, and the mass is n * molar mass of N2O.
Molar mass of N2O = (14.01 + 2 * 16.00) g/mol = 44.01 g/mol
The volume of the gas is:
V = mass / density = n * molar mass of N2O / 3.10 g/L
Now we have all the information needed to use the ideal gas law to determine the pressure of the gas.
We are given that the temperature of the gas is 298K.
We can use the ideal gas constant R = 0.0821 Latm/molK
Plugging in the known values:
P = (nRT) / V = (n * 0.0821 Latm/molK * 298K) / (n * molar mass of N2O / 3.10 g/L)
P = (0.0821 * 298) / (44.01 / 3.10) atm
To convert the pressure in atm to mmHg, we need to multiply the pressure by 760 (1 atm = 760 mmHg)
P = (0.0821 * 298) / (44.01 / 3.10) * 760 mmHg
The pressure of the N2O gas is approximately 739.07 mmHg at 298K and density of 3.10 g/L.
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Determine the number of atoms of each element in the following: 4Fe2O3
Answer:
hi, I haven't done this in a while, but I think this is it!
Explanation:
20
8 Iron Atoms
12 Oxygen Atoms
How many atoms are there in a 2 moles of oxygen atoms? How many atoms are there in 2 moles of oxygen molecules?
For 2 moles of oxygen atoms, there are Avogadro's number (6.022 x 10^23) atoms. For 2 moles of oxygen molecules, there are twice that amount, or 12.044 x 10^23 atoms.
What are Atoms?
Atoms are the smallest particle of any element that still maintains the properties of that element. Atoms are made up of a nucleus surrounded by one or more electrons. The nucleus is composed of protons and neutrons, and the electrons orbit around the nucleus. Atoms of different elements have different numbers of protons, neutrons, and electrons, which is what gives them their unique properties.
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What is the total number of moles contained in 115 grams
of C₂H5OH?
A. 1.00
B. 1.50
C. 2.50
D. 3.00
The total number of moles contained in 115 grams of C₂H5OH is 2.50 moles .
What is the term "mole"?The term "mole" refers to the quantity of a substance that has the same amount of subatomic particles (ions, molecules, or atoms) as there are carbon atoms.
Atomic weight of carbon(C)= 12 gm
Atomic weight of Hydrogen (H)=1 gm
Atomic weight of oxygen (o)=16 gm
∴Molecula weight of C2H5OH =(12×2 + 1×6 + 16×1) gm
24 + 6 + 16 gm = 46 gm
∴ 46 gm of C2H5OH contains 1 mole
1 gm of C2H5OH contain = 1/46 moles
115 gm of C2H5OH contains = 115×1/46 moles
⇒2.5 moles
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How many protons are neutral in nitrogen?
A neutral atom of Nitrogen will have seven protons.
The symbol given for Nitrogen is N, the atomic number 7. Atomic number is equivalent to the number of protons in an atom. So, for Nitrogen, the number of protons is 7.
What is a neutral atom?A neutral atom is an atom which consists of the same number of protons and the same number of electrons. Neutral atoms will have the equal number of protons in the nucleus as they have electrons orbiting the nucleus.
In a neutral atom, the total charge on the atom is zero. Atom has same number of protons and electrons in it. For example, neutral atom of Sodium, with atomic number 11, has 11 protons and 11 electrons in its neutral state.
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If you see an uncharacterized container that has a white crystalline residue on the outside, what should you do
HCl(aq)+NaOH(aq)→NaCl(aq)+H2O(l)
A student had two dilute, colorless solutions, HCl(aq) and NaOH(aq), which were at the same temperature. The student combined the solutions, and the reaction represented above occurred. Which of the following results would be evidence that a chemical reaction took place?
'The temperature of the reaction mixture increases' would be evidence that a chemical reaction took place.
What is a dilute solution?
A dilute solution is a solution that contains fewer solute particles than a more concentrated solution. Dilute solutions are generally less concentrated than more concentrated solutions and are often made by adding more solvent to the solution.
When a chemical reaction takes place, energy is released in the form of heat. This increase in temperature is basically known as an exothermic reaction. An increase in temperature is a sign that a chemical reaction has taken place, as the reaction mixture is absorbing the energy released from the reaction.
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For the reaction given below, 2.00 moles of A and 3.00 moles of B are placed in a 6.00-L container. At equilibrium, the concentration of A is 0.246 mol/L. What is the concentration of B at equilibrium? A) 0.246 mol/L B) 0.325 mol/L C) 0.500 mol/L D) 0.492 mol/L E) none of these
The equilibrium concentration of B is 0.325 mol/L.
The correct option is B.
What is the equilibrium concentration of B in the given reaction?The equilibrium concentration of B in the given reaction is calculated below as follows:
The concentration of A at equilibrium, [A] = 0.246 mol/L
Constructing an ICE table
A(g) + 2B (g) → C(g)
I 2 mole 3 moles -
C 0.524 1.048 0.524
E 0.246 (3 - 1.048) / 6
From the equation of the reaction:
(2 - x) / 6L = 0.246 mol/L
2 - x = 0.246 * 6
2 - x = 1.476
x = 2 - 1.476
x = 0.524 moles
[B] = (3 - 1.048) / 6
[B] = 0.325 mol/L
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Complete question:
For the reaction given below, 2.00 moles of A and 3.00 moles of B are placed in a 6.00-L container.
A(g) + 2B(g) C(g)
At equilibrium, the concentration of A is 0.246 mol/L. What is the concentration of B at equilibrium? A) 0.246 mol/L B) 0.325 mol/L C) 0.500 mol/L D) 0.492 mol/L E) none of these
What element has 4 protons 6 neutrons and 4 electrons
Answer:
Beryllium is the element that is atomic number 4 on the periodic table.
Suppose that 20 mL of 2.50 x 10^-2 M aqueous H 2 SO 4 is required to neutralize 10.0 mL of an aqueous solution of KOH. What is the molarity of the KOH solution
The molarity of KOH solution will be 0.75 M.
The amount of moles of solute per liter of solution is known as molarity (M). Molarity is defined as moles of solute per liter of solution. To ascertain the concentration of an identified analyte, titration is a typical laboratory technique for quantitative chemical analysis. A standard solution with a known concentration and volume is prepared as the reagent, also known as the titrant or titrator.
The balanced equation is
[tex]H_{2} SO_{4}[/tex]+ 2KOH = [tex]2H_{2} O[/tex]+ [tex]K_{2} SO_{4}[/tex]
2.50 x [tex]10^{-2}[/tex] M= [tex]\frac{x}{0.2 L}[/tex]
So, 0.75 M KOH.
So, The molarity of KOH solution will be 0.75 M.
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the data in the table show the amount of 500 g sample of sodium-24 over time. make a graph of the data (remember to label all axes and title the graph)
The amount of sodium-24 decreases to approximately 125 g.
What is sodium?Sodium is a chemical element with the symbol Na on the periodic table. It is a soft, silvery-white, highly reactive metal and is a member of the alkali metal group of chemical elements.
The graph below shows the amount of 500 g sample of sodium-24 over time. The x-axis of the graph represents time (in hours), and the y-axis represents the amount of sodium-24 (in grams). The title of the graph is "Amount of sodium-24 in 500 g Sample Over Time".
The graph shows that the amount of sodium-24 in the sample decreases over time. After 24 hours, the amount of sodium-24 in the sample decreases to approximately 375 g. After 48 hours, the amount of sodium-24 decreases to approximately 250 g. After 72 hours, the amount of sodium-24 decreases to approximately 125 g.
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Will someone please help me with these physics questions.
Now assume that all of the potential energy went into kinetic right as it is about to hit the bottom. What would be the value for the kinetic energy? a. less
b. same
c. more
d. not information
The potential energy will go into kinetic right as it is about to hit the bottom. Then, the value will be the b) same for the kinetic energy.
When an object falls, its potential energy decreases, and its kinetic energy increases. A decrease in the potential energy is exactly the same as an increase in the kinetic energy. According to the law of conservation of energy, just before the lamp stops, the potential energy at the top of the lamp and the kinetic energy at the bottom must be equal. At the foot of the hill, the potential energy is zero and the final energy is all kinetic energy. We can equate these two values according to the law of conservation of energy. Adding the kinetic energy and the potential energy gives a constant (KE+PE=constant).
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How many grams do 5.6 × 1026 atoms of helium weigh?
One mole of Helium contains 6.02 × 10²³ atoms. Mass of one mole is 4 g. Then, He containing 5.6 × 10²⁶ atoms weighs 3720.9 g.
What is Avogadro number?Any substance containing 6.02 × 10²³ atoms is called one mole of that substance. This number is called Avogadro number. Thus, one mole of every element contains Avogadro number of atoms.
Helium is second element in periodic table. Atomic mass of helium that is mass of one mole = 4 g
4 g contains 6.02 × 10²³ atoms. Then weight of He containing 5.6 × 10²⁶ atoms is calculated as follows:
no. of moles = 5.6 × 10²⁶/ 6.02 × 10²³ = 930.2
mass of 930.2 moles = 930.2 × 4 =3720.9 g
Therefore, the mass of He containing 5.6 × 10²⁶ atoms is 3720.9 g.
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The hybridization of orbitals on the central atom in a molecule is sp. The electron-domain geometry around this central atom is ________.
A molecule's core atom experiences sp orbital hybridization. Around this primary atom, the geometry of the electron domain is linear.
In chemistry, hybridization is the idea of combining two atomic orbitals to create a new class of hybridized orbitals. Usually, this mixing creates hybrid orbitals with completely distinct energies, forms, etc. In hybridization, the same energy-level atomic orbitals are primarily involved. However, assuming they contain equal energy, both fully-filled and half-filled orbitals can participate in this process.
When two atomic orbitals unite to generate a hybrid orbital in a molecule, the energy of the orbitals of the individual atoms is redistributed to give orbitals of equivalent energy. Hybridization is the name given to this process. Atomic orbitals with similar points are brought together during the hybridization process.
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Identify at least two physical properties (streak, fracture, etc.) of a mineral while using examples of common minerals that prominently feature those properties. Provide links or screenshots of the discussed minerals to illustrate the highlighted properties. Also, explain what mineral group it belongs to and why.
The two physical properties of a mineral can be color, streak and even cleavage also.
Color, streak, cleavage, hardness, specific gravity, fracture, luster, and crystal structure are only a few of the many diverse characteristics. I'll speak specifically about color and shine as they relate to diamonds and how they significantly impact the value of the individual stone. Diamonds are a type of carbon polymorph.
Polymorphism, as used in materials science, refers to the fact that a solid material can exist in more than one crystal structure or form. Isomerism in the form of polymorphism. The phenomena can be seen in any crystalline substance. A chemical element's polymorphism is referred to as allotropy. Pharmaceuticals, agrochemicals, pigments, dyestuffs, meals, and explosives all have practical applications for polymorphism. "A reversible transition of a solid crystalline phase at a given temperature and pressure (the inversion point) to another phase of the same chemical composition with a different crystal structure," according to IUPAC, describes a polymorphic transition.
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Matter with a ___ luster reflects little light from its surface.
Fill the blank
Matter with a Dull luster reflects little light from its surface.
Minerals with dull luster reflect very little light.
What is Luster?The term "luster" refers to the light reflection from a mineral's surface. To define lustre, mineralogists use specific terminology. The mineral's metallic or non-metallic nature can be used to categorise lustre in a straightforward manner. Metallic lustre can be seen in opaque, sparkling minerals like pyrite. Quartz is one example of a mineral with a non-metallic shine.
Metallic lustre denotes a sheen akin to polished metal. Clean, polished chunks of chrome, steel, titanium, copper, and brass, as well as many other minerals, all have a metallic shine. The most prevalent nonmetallic lustre is glassy, which denotes that the mineral's surface reflects light like glass. The most typical sort of mineral, feldspars, must have a pearly shine to be recognised. Similar to how pearls reflect light, pearly lustre describes a delicate iridescence or colour play in the reflected light. To reflect light with a silky sheen is to be silky. The sheen of hardened bacon fat is comparable to that of grease.Light is reflected relatively little by minerals with a poor sheen. It takes a little practise to spot lustre. Keep in mind to separate shine from colour.What is Dull Luster?Due to their coarse granulations, which scatter light in all directions and resemble a Lambertian reflector, dull (or earthy) minerals have little to no shine. Kaolinite is one Example.
Different types of non-metallic lusterLuster Appearance
Adamantine Sparkly
Earthy Dull, clay-like
Pearly Pearl-like
Resinous Like resins, such as tree sap
Silky Soft-looking with long fibers
Vitreous Glassy
What are Minerals?Minerals are inorganic solids that exist in nature and have a distinct chemical composition and crystal lattice structure. Even though thousands of minerals in the earth have been found, only ten minerals—plagioclase, quartz, orthoclase, amphibole, pyroxene, olivine, calcite, biotite, garnet, and clay—make up the majority of the crust's volume.
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