ANSWER
The wavelength of the photon is 0.0053nm
STEP-BY-STEP EXPLANATION:
Given data
Frequency of the photon = 5.66 x 10^-4 Hz
Let x represents the wavelength of the photon
To determine the wavelength of the photon, we need to apply the below formula
[tex]\begin{gathered} C\text{ = f x }\lambda \\ \text{where} \\ c=\text{ sp}eed\text{ of light} \\ f\text{ = frequency} \\ \lambda\text{ = wavelength} \end{gathered}[/tex]Recall that, the speed of light is 3 x 10^8 m/s
The next process is to substitute the values into the above formula
[tex]\begin{gathered} c\text{ = f}\lambda \\ \text{Divide both sides by f} \\ \frac{c}{f}\text{ = }\frac{f\lambda}{f} \\ \lambda\text{ = }\frac{c}{f} \\ \end{gathered}[/tex][tex]\begin{gathered} \lambda\text{ = }\frac{3\cdot10^8}{5.66\cdot10^{14}} \\ \lambda\text{ = }\frac{3}{5.66}\cdot10^{8\text{ - 14}}^{} \\ \lambda\text{ = 0.53 }\cdot10^{-6} \\ \lambda\text{ = 5.3 }\cdot10^{-7}m \\ \lambda\text{ =}0.0053nm \end{gathered}[/tex]Therefore, the wavelength of the photon is 0.0053nm
Based on the image above of Silver from the periodic table, which isotope would be the most abundant?
109
or
107
Based on the image above of Silver from the periodic table, the isotope that would be the most abundant is Ag-107.
What are isotopes?Isotopes are atoms of the same element that differ from each other by their mass.
The difference in the mass of isotopes of elements is due to the difference in the number of neutrons in the nucleus.
The relative atomic mass of an element is the sum of the isotopic mass and relative abundances of the isotopes.
The relative atomic mass of an element is closer to the value of the isotope with the greatest relative abundance.
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peter measured the height of a plant five times. He recorded the following results: 15.5 cm, 19.4 cm, 15.6 cm, 15.8 cm, 15.9 cm. which of the measurements is the least precise?
Peter measured the height of a plant five times then the measurements is the least precise is 15.5 cm
Measurement precision is the numerically using measure of imprecision as that standard deviation then calculated from the result by carrying replicate measurement and here given measurements are 15.5 cm, 19.4 cm, 15.6 cm, 15.8 cm, 15.9 cm and in that measurements the least precise are 15.5 cm
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A scientist conducted an experiment to determine how the amount of salt in a body of
water affects the number of plants that can live in the water. What is the independent
(testing) variable?
the amount of water
the time it took for the plants to grow
the number of plants
O the amount of salt
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The number of plants in the water is the independent (testing) variable.
What may be altered during an experiment?Anything that may vary or be altered is considered a variable. In other words, it is any factor in an experiment that may be modified, controlled for, or assessed.
Scientists cannot ascribe changes or discrepancies in outcomes to a single source when more than one variable is altered in an experiment. The outcomes may be directly ascribed to the independent variable by looking at and modifying one variable at a time.
What variables are changeable or manipulable?In an experiment, the independent variable is a manipulated variable. It's termed "manipulated" because it can be changed. In other words, you may choose whether to raise or reduce it ahead of time.
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electronic configuration of Lithium
The electronic configuration of Lithium is 1s²2s¹.
Which encoding is utilized to represent the arrangement of the lithium electrons?The configuration notation allows scientists to clearly describe and record how electrons are positioned around an atom's nucleus. As a result, it is simpler to comprehend and anticipate how atoms will interact to create chemical bonds.
Lithium is the third element with a total of three electrons. We shall describe the lithium electron configuration with the first two electrons in the 1s orbital. Li's third electron is in the 2s orbital since there can only be two electrons in the 1s orbital. Therefore, Li's electron configuration will be 1s22s1.
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What is the pH of the solution obtained when 135 mL of 0.616 M NaOH is diluted to 16.0 L with water?
Express your answer using two decimal places.
The pH of a solution obtained when 135mL of 0.616 M NaOH is diluted to 16.0 L with water is 2.28.
How to calculate pH?The pH of a solution is the degree of acidity or alkalinity of a solution.
The pH of a solution can be calculated by using the following equation;
pH = - log {H+}
However, the molarity or concentration of the NaOH solution must first be calculated as follows:
C₁V₁ = C₂V₂
Where;
C₁ = initial concentrationV₁ = initial volumeC₂ = final concentrationV₂ = final volume135 × 0.616 = C × 16000
83.16 = 16000C
C = 0.0052M
pH of NaOH = - log {0.0052}
pH = 2.28
Therefore, the pH of the NaOH solution is 2.28.
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what is the ionic equation for Ba(ClO4)2(aq)+K2SO4(aq)⟶BaSO4(s)+2KClO4(aq)?
A 9.6 g object is placed in a graduatedcylinder displacing the volume from 10.0 mLto 13.2 mL.The volume of this object is 3.2 mL.What is its density in g/mL?Round your answer to the appropriatenumber of significant figures.[?] g/mL
ANSWER
T
EXPLANATION
Given that;
The mass of the object is 9.6 grams
The volume of the object is 3.2mL
Follow the steps below to find the density of the object
[tex]\text{ Density = }\frac{\text{ mass}}{\text{ volume}}[/tex]Substitute the given data into the formula above
Convert the volume of the object to cm^3
Recall, that 1mL is equivalent to 1cm^3
Hence, 3.2mL is 3.2 cm^3
[tex]\begin{gathered} \text{ Density= }\frac{\text{ 9.6}}{\text{ 3.2}} \\ \text{ Density = 3.00g/cm}^3 \end{gathered}[/tex]Therefore, the density of the object is 3.00 g/mL
balance the equation c3h8o3+o2- co2+h2o
Balanced equation of C3H8O3 + O2 = CO2 + H2O is 2C3H8O3 + 7O2 → 6CO2 + 8H2O
How To Balance C3H8O3 + O2 = CO2 + H2O ?
Balance the equation C3H8O3 + O2 = CO2 + H2O using the algebraic method.
Label Each Compound With a VariableaC3H8O3 + bO2 = cCO2 + dH2O
Create a System of EquationsC: 3a + 0b = 1c + 0d
H: 8a + 0b = 0c + 2d
O: 3a + 2b = 2c + 1d
Use substitution, gauss elimination3a - 1c = 0
8a - 2d = 0
3a + 2b - 2c - 1d = 0
Simplify the result to get the lowest, whole integer values.a = 2 (C3H8O3)
b = 7 (O2)
c = 6 (CO2)
d = 8 (H2O)
Substitute Coefficients and Verify Result2C3H8O3 + 7O2 = 6CO2 + 8H2O
Reactants Products
C 6 6
H 16 16
O 20 20
Since there is an equal number of each element in the reactants and products of 2C3H8O3 + 7O2 = 6CO2 + 8H2O, the equation is balanced.
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a society decides that it needs to produce more corn to feed the growing population what must it do before it begins the production process
The transformation of inputs into outputs is referred to as the production process.
What is meant by the production process?
A production process is a way to use economic resources, such as labor, expensive machinery, or land, to create goods and services for customers.
The transformation of inputs into outputs is referred to as the production process. The primary categories include mass, batch, job, just-in-time, and flexible manufacturing systems.
A production process is a method of delivering goods and services to clients while utilizing resources or economic inputs like labor, expensive machinery, or land.
Therefore, the correct answer is option A. analyze existing resources, such as water availability
The complete question is:
Society decides that it needs to produce more corn to feed the growing population. What must it do before it begins the production process?
A. analyze existing resources, such as water availability
B. determine how people will receive the surplus crops
C. study the profitability of increasing corn production
D. understand who is in a position of authority to produce more
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Balance the following Equation:
A LI₂CO3 (s) + B HCI (aq) -> C LICI (aq) + D H₂O (1) + E CO₂ (g)
a) A = 1; B = 1; C = 1; D = 1; E = 1
b) A= 1; B = 1; C = 2, D = 1; E = 1
c) A= 1, B2, C = 2; D = 1; E = 1
d) A=2; B = 1;, C = 1; D = 2; E = 1
Answer:
C is the answer
Explanation:
Li2CO3 + HCl - - - - - - -> LiCl + H2O + CO2
Li. Li. H. Li. H. H. C
C Cl. Cl. O. O. O
O. O. O
2 Li ------>1Li so we put 2 in front LiCl on the right side to make 2Li---->2Li.
1H------->2H so we put 2 in front HCl on left side to make
Li2CO3 + 2HCl - - - - - - -> 2LiCl + H2O + CO2
Recycling of Carbon Quick Check
Pyrolysis is the most popular recycling method for recovering carbon fiber from composite trash because it essentially burns off the resin at high temperatures.
It has long been asserted that solvolysis, which dissolves the resin using a solvent, offers superior qualities.
What are the carbon cycle's seven steps?The Cycle of Carbon
Plants absorb carbon from the atmosphere.
Animals and plants both absorb carbon.
Animals and vegetation release carbon into the soil.
Living beings release carbon into the atmosphere.
When fuels are burned, carbon is released from fossil fuels into the atmosphere.
Oceans receive carbon from the atmosphere.
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Which of the following statements is NOT true concerning the decomposition of a simple binarycompound?A) The products are unpredictable.B)The products are the constituent elements.C)Energy is usually required.D)The reactant could be an ionic or a molecular compound.E) The reactant is a single substance
Step 1 -
A decomposition reaction is a reaction in which a compound is decomposed, i.e., we usually heat a substance thus forming new substances, such as gaseous substances.
Generally speaking, a decomposition reaction will involve only one reactant: the substance to be decomposed.
[tex]\text{reactant}\to\text{ product 1 + product 2 + }\ldots[/tex]Step 2 - Examples of decomposition reactions
Let's take a closer look at some examples:
[tex]\begin{gathered} ZnCO_3\to ZnO+CO_2 \\ 2Al_2O_3\to4Al+3O_2 \\ H_2CO_3\to H_2O_{}+CO_2 \\ NH_4NO_3\to N_2O+2H_2O \end{gathered}[/tex]We can already state some conclusions:
a) The products are not always the same. They depend on the reactant. Therefore, they are not always predictable.
b) The reactant can be an ionic compound (such as ZnCO3) but also a covalent compound (such as H2CO3).
c) The reactant does not decompose into its constituent elements.
Step 3 - Finding the wrong answer
Therefore, the only wrong answer is item b), the products are the constituent elements.
look at the picture
Write the balanced net ionic equation for the reaction when aqueous (NH4)3PO4 and the a queso us Zn(NO3)2 are mixed in solution to form solid Zn3(PO4) and aqueous NH4NO3. Be sure to include the proper phases for all species within the reaction
The net ionic equation for the reaction between aqueous (NH₄)₃PO₄ and aqueous Zn(NO₃)₂ to form solid Zn₃(PO₄)₂ and aqueous NH₄NO₃ is:
PO₄³⁻ (aq) + Zn²⁺ (aq) ----> Zn₃(PO₄)₂ (s)What are net ionic equations?Net ionic equations are equations that show only the reactant ions that are involved in the formation of a non-ionic product.
In a net ionic equation, the spectator ions or the ions which appear on both sides of the reaction are eliminated.
Considering the given reaction between aqueous (NH₄)₃PO₄ and aqueous Zn(NO₃)₂ to form solid Zn₃(PO₄)₂ and aqueous NH₄NO₃:
The molecular equation is given below:
(NH₄)₃PO₄ (aq) + Zn(NO₃)₂ (aq) ----> Zn₃(PO₄)₂ (s) + NH₄NO₃ (aq)
The net ionic equation is:
PO₄³⁻ (aq) + Zn²⁺ (aq) ----> Zn₃(PO₄)₂ (s)
The product Zn₃(PO₄)₂ is insoluble and is obtained as a precipitate.
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HN5O3+Mg reaccion de sustitucion sencilla
Responder por favor lo necesito rapido
The balanced equation of the reaction could be written as; [tex]HN_{5} O_{3} + Mg ------ > MgO + HNO_{3}[/tex]
What is a reaction?We know that in chemistry, the term reaction has to do with the combination of two or more species to give a product. Now the process of the reaction would alter the chemical composition of the reactants as we move on the way to get the ne substances called the products. There would be a breaking down of the bonds that holds the reactant molecules together and then there is a recombination of the atoms in a different way so as to obtain the products of the reaction. This is how a chemical reaction takes place in a given system.
In this case we have the oxidation of the compound called [tex]HN_{5} O_{3}[/tex]. In this case, the compound is actually being oxidized as we can see from the process that would be shown in the reaction equation accurately.
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Which of the following is an example of water in a liquid state?
A. ice
B. Steam
C. Snow
D. Rain
Cl₂(g) + F₂(g) 2CIF(g)
Draw Lewis structures for all reactant and product molecules.
Lewis structures for all reactant and product molecules and the show the bonding relationship between atoms of a molecule and the lone pairs of electrons in the molecule
Lewis structure for the reactants and product molecules can be drawn by following the octet rule and considering covalent bonding between the bonded atoms
Here given reaction is
Cl₂(g) + F₂(g) → 2CIF(g)
And lewis structure of reactant means Cl₂(g) + F₂(g) in Cl₂(g) one chlrine has three lone pair attached and another clorine also three lone pair attached whereas F₂(g) also has three pair of lone pair are attached and product means CIF(g) has Cl has three lone pair and F also has three lone pair attached
Lewis structures for all reactant and product molecules are given below
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How many molecules are contained in a 4.30-g sample of dimethylmercury?
The number of molecules contained in a 4.30-g sample of dimethylmercury is 1.12 × 10²² molecules.
How to calculate number of molecules?The number of molecules of a substance can be calculated by multiplying the number of moles in the substance by Avogadro's number as follows:
no of molecules = no of moles × 6.02 × 10²³
According to this question, 4.30-g sample of dimethylmercury (C₂H₆Hg) is given. The molar mass of C₂H₆Hg is 230.659 g/mol.
no of moles of dimethyl mercury = 4.3g ÷ 230.659 g/mol = 0.0186 moles
no of molecules of dimethyl mercury = 0.0186 moles × 6.02 × 10²³
no of molecules = 1.12 × 10²² molecules
Therefore, the number of molecules in 4.3g of C₂H₆Hg is calculated to be 1.12 × 10²² molecules.
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When 0.384 g of sodium metal is added to an excess of hydrochloric acid, 3990 J of heat are produced. What is the enthalpy of the reaction as written?
The enthalpy of the reaction when 0.384 g of sodium metal is added to an excess of hydrochloric acid and 3990 J of heat is produced is 266 KJ.
The balanced chemical equation of reaction is -
2 Na(s) + 2 HCl(aq) ⟶ 2 NaCl(aq) + H₂(g)
We know that,
weight of sodium metal is 0.384 g
Molar mass of Na is 23 g/mol
we will calculate the number of moles,
Number of moles = Given mass
Molar mass
Moles of Na = 0.348 g = 0.015 mol
23 g/mol
We will calculate the energy in 1 mole of sodium metal
In 0.015 moles of sodium metal, 3990 J of energy is produced.
so, in 1 mole of sodium metal, 3990 J of energy is produced
0.015
In 1 mole, 266000 J of energy is produced.
1 J = 0.001 KJ
266000 J = 266 KJ
The enthalpy of the reaction will be 266 KJ.
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Of the chemical formulas MgO, Br₂, Ne, and CO₂,
which represents both an element and a molecule?
Explain your answer.
Br2 represents both an element and a molecule.
A molecule is defined as a group of atoms bonded together. An element is defined as a substance that cannot be chemically broken down further into simpler substances. Br2 is only bromine and it is two bromine atoms boned together to form a molecule.
what is the weight in remaining oranges
What is the empirical formula of a substance that contains 0.250 mol of carbon, 0.500 mol of hydrogen, and 0.250 mol of oxygen?
The empirical formula of the compound is CH₂O.
What is the empirical formula of the compound?The empirical formula of a compound is the simplest formula of a compound showing the elements in the compound combined in their simplest mole ratios.
The empirical formula is determined from the simplest whole number mole ratio in which the elements in the compound combine.
The empirical formula of the compound is calculated below as follows:
mole of carbon = 0.250
mole of hydrogen = 0.50
moles of oxygen = 0.250
Diving by the smallest ratio to convert to whole number ratios
mole ratio of carbon to hydrogen to oxygen will be:
C = 0.25 / 0.25 = 1
H = 0.50 / 0.25 = 2
O = 0.25 / 0.25 = 1
Empirical formula = CH₂O
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Why is this on hear if people give you the wrong answers?!?
Answer:
I don't know but I do know that you need grammarly.
Explanation:
This sentence is grammatically correct, but its wordy, and hard to read.
How many moles of silver are present in a silver spoon that has a mass of 12.86 g?
You do not need to type your units into the answer box. Please report your answer with three places after the decimal, and do not use scientific notation.
The number of moles of silver present in a silver spoon that has a mass of 12.86g is 0.12 moles.
How to calculate number of moles?The number of moles of a substance can be calculated by dividing the mass of the substance by its molar mass as follows:
The mass of a substance is the quantity of matter which a body contains, irrespective of its bulk or volume.
The mole of a substance is the amount of substance of a system which contains exactly 6.02214076 × 10²³ elementary entities e.g. atoms, molecules.
moles = mass ÷ molar mass
According to this question, silver spoon has a mass of 12.86g. The number of moles can be calculated as follows:
Molar mass of silver (Ag): 107.8682g/mol
moles = 12.86g ÷ 107.8682g/mol
moles = 0.12 moles
Therefore, 0.12 moles of silver are present in the silver spoon.
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You mix a solution with 17.1 grams NaCl, 29.8 grams NaHCO3, and 105 grams of water. What is the mass percent of NaCl in this solution?
Answer:
45.2662%
Explanation:
The sum of the chemicals (sodium chloride) and (Baking powder) and (water) is 151.9, The Salt(sodium chloride) is 29.8 grams and as a percent is 0.298%. 151.9x0.298=45.2662%, happy to help any other time!
helppppppppppddjeoeps
Answer:
D.) mole, 6.022 x 10²³
Explanation:
Avogadro's Number is a ratio which states that there are 6.022 x 10²³ particles per every one mole.
What type of energy is stored in the bonds of chemical compounds?
chemical energy
compound energy
element energy
kinetic energy
Answer: Chemical energy
Explanation:
Answer:
a
Explanation:
an empty graduated cylinder weighs 26.145 g when the cylinder contains 48.3 of an unknown liquid it weighs 65.055 g. what is the density of the unknown liquid? put answer in correct significant figures
The density of the unknown liquid 1.88kg/m³
The density of a liquid is a measure of how heavy it is for the amount measured and if you weigh equal amounts or volumes of two different liquids, the liquid that weighs more is more dense and if a liquid that is less dense than water is gently added to the surface of the water, it will float on the water
Here given data is cylinder weighs 26.145 g and when the cylinder contains 48.3 of an unknown liquid and it weighs 65.055 g then we have to find density of the unknown liquid = ?
So density = mass/volume
cylinder weighs + liquid weighs = 91.2g
Density = 91.2g/48.3
Density = 1.88kg/m³
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"Nitric acid forms in the atmosphere through the following balanced reaction:
4NO(g) + 3O2(g) + 2H20 and excess oxygen gas, what is the percent yield for hte reaction?
The percent yield of the reaction is calculated as follows:
Percent yield = actual yield/ theoretical yield * 100 %
The percent yield of the reaction is less than 100%.
What is the percent yield of a given reaction?The percent yield of a reaction is the ratio of the actual yield of a reaction and the theoretical yield of the reaction.
Mathematically:
Percent yield = actual yield/ theoretical yield * 100 %The percent yield of any reaction is never 100& percent because no reaction actually goes to completion forming exactly all the product that is expected.
Considering the give reaction of the formation of nitric acid in the atmosphere:
The equation of the reaction is:
4 NO (g) + 3 O₂ (g) + 2 H₂0 (g) ---> 4 HNO₃ + excess oxygen.
The percent yield will require the actual yield and the theoretical yield in order to be calculated.
For example, if the actual yield is 12 g and the theoretical yield is 15 g, percent yield = 12/15 * 100%
Percent yield = 80%
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To test the effectiveness of a new nutrient supplement one group of identical mice is given the supplement and the other group is not given any thing .which is the most complete list of the parts of the
experiment presented in this scenario.
The most complete list of the parts of the experiment presented in this scenario include:
Dependent variableExperimental groupControl group.What is Experiment?This refers to the procedures which are performed in other to support or refute a hypothesis. It is also used to ascertain the authenticity of the claim by other people such as scientists etc who review it.
In the scenario given, we were told that the group of identical mice is given the supplement and the other group is not given any thing which means that the control group is the one which wasn't given anything while the ones who were given something is the experimental group.
The dependent variable is the supplement which was given to the mice and is therefore the reason why option B was chosen as the correct choice.
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