Answers
Answer:
F. 1, 1
G. 1
Explanation:
When you work out how many there are of each thing, the numbers that were already in there equal each other, do you just need to add ones in the other blanks.
Related Questions
Help me!!!
Pleaseeee!!!!
Answers
Answer:
0.862 J/gºC
Explanation:
The following data were obtained from the question:
Mass of metal (Mₘ) = 50 g
Initial temperature of metal (Tₘ) = 100 °C
Mass of water (Mᵥᵥ) = 400 g
Initial temperature of water (Tᵥᵥ) = 20 °C
Equilibrium temperature (Tₑ) = 22 °C
Specific heat capacity of water (Cᵥᵥ) = 4.2 J/gºC
Specific heat capacity of metal (Cₘ) =?
The specific heat capacity of the metal can be obtained as follow:
Heat lost by metal = MₘCₘ(Tₘ – Tₑ)
= 50 × Cₘ × (100 – 22)
= 50 × Cₘ × 78
= 3900 × Cₘ
Heat gained by water = MᵥᵥCᵥᵥ(Tₑ – Tᵥᵥ)
= 400 × 4.2 × (22 – 20)
= 400 × 4.2 × 2
= 3360 J
Heat lost by metal = Heat gained by water
3900 × Cₘ = 3360
Divide both side by 3900
Cₘ = 3360 / 3900
Cₘ = 0.862 J/gºC
Therefore, the specific heat capacity of the metal is 0.862 J/gºC
A 35 Liter tank of Oxygen is at 315 K with an internal pressure of 190 atmospheres. How many moles of gas does the tank contain?
Answers
Using the following balanced formula, determine the number of molecules
of CH4 needed to produce 12 molecules of CCl4.
CH4 + 4C12 --> CC14 + 4HCI
Answers
Answer:
12 molecules CH₄
Explanation:
Step 1: Write the balanced equation
CH₄ + 4 Cl₂ ⇒ CCl₄ + 4 HCI
Step 2: Establish the appropriate molecular ratio
According to the balanced equation, the molecular ratio of CH₄ to CCl₄ is 1:1.
Step 3: Determine the number of molecules of CH₄ needed to produce 12 molecules of CCl₄
We will use the previously established molecular ratio.
12 molecules CCl₄ × 1 molecule CH₄/1 molecule CCl₄ = 12 molecules CH₄
Carbon-11 decays by position emission.The nuclide formed product is
Answers
Answer:
They demonstrated that carbon-11 decays by positron emission to the stable nuclide 11B [Eq. (1)].
6. If 4 mole of the rocket fuel ammonium perchlorate, NH4C/04 (s) is
allowed to react with excess Al so all of the NH4ClO4 is consumed, how
many grams of water will be produced?
3NH_CI04 (s) + 3Al (s) Al2O3 (s) + AlCl3 (s) + 3NO (g) + 6H2O (g)
Answers
Answer:
144g of H₂O
Explanation:
3NH₄ClO₄(s) + 3Al → Al₂O₃(s) + AlCl₃(s) + 3NO(g) + 6H₂O(g)
From the equation:
3 moles of NH₄ClO₄ produced 6 moles of H₂O
4 moles of NH₄ClO₄ produced ? moles of H₂O
(4 ₓ 6)/3 = [tex]\frac{24}{3}[/tex] = 8 moles of H₂O
1 mole of H₂O = (1 × 2) + 16 = 18g (The Relative Molecular mass of H₂O)
8 moles of H₂O = ?
Therefore 8 × 18 = 144g
=144g of H₂O
How do conduction, convection, and radiation redistribute incoming solar energy?
Answers
The climate’s heat engine must not only redistribute solar heat from the equator toward the poles, but also from the Earth’s surface and lower atmosphere back to space. Otherwise, Earth would endlessly heat up. Earth’s temperature doesn’t infinitely rise because the surface and the atmosphere are simultaneously radiating heat to space. This net flow of energy into and out of the Earth system is Earth’s energy budget. Energy from sunlight is not spread evenly over Earth. One hemisphere is always dark, receiving no solar radiation at all. On the daylight side, only the point directly under the Sun receives full-intensity solar radiation. From the equator to the poles, the Sun’ rays meet Earth at smaller and smaller angles, and the light gets spread over larger and larger surface areas (red lines). (NASA illustration by Robert Simmon.) The solar radiation received at Earth’s surface varies by time and latitude. This graph illustrates the relationship between latitude, time, and solar energy during the equinoxes. The illustrations show how the time of day (A-E) affects the angle of incoming sunlight (revealed by the length of the shadow) and the light’s intensity. On the equinoxes, the Sun rises at 6:00 a.m. everywhere. The strength of sunlight increases from sunrise until noon, when the Sun is directly overhead along the equator (casting no shadow). After noon, the strength of sunlight decreases until the Sun sets at 6:00 p.m. The tropics (from 0 to 23.5° latitude) receive about 90% of the energy compared to the equator, the mid-latitudes (45°) roughly 70%, and the Arctic and Antarctic Circles about 40%. (NASA illustration by Robert Simmon.) The amount of sunlight the Earth absorbs depends on the reflectivness of the atmosphere and the ground surface. This satellite map shows the amount of solar radiation (watts per square meter) reflected during September 2008. Along the equator, clouds reflected a large proportion of sunlight, while the pale sands of the Sahara caused the high reflectivness in North Africa. Neither pole is receiving much incoming sunlight at this time of year, so they reflect little energy even though both are ice-covered. Hope this helps!
The solar energy from sun is radiating to the earth's surface and making the atmosphere warmer. The heat energy is redistributing back by through different heat transfer modes.
What is heat transfer?Heat energy transfer from hotter region to colder region by the temperature gradient. The heat is transferring through solids by conduction. Conduction is the process of heat transfer through the closely packed particles in solids.
Heat transfers through convection in liquids. Where the hot molecules rise to the surface and transfers the heat to other molecules. The heat radiated to the earth make the sources in earth warmer. Through convection, the water molecules heat up.
The water vapor formed by convection process radiates to the atmosphere and redistributes the energy back.
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Calculate the volume, in milliliters, for the following:
.850 mol of NaNO3, from a .500 M NaNO3 solution
30.0 g of LiOH from a 2.70 M LiOH solution
Answers
Answer: The volume for 0.850 mol of [tex]NaNO_{3}[/tex] from a [tex]NaNO_{3}[/tex] solution is 1700 mL.
The volume of 30.0 g of LiOH from a 2.70 M LiOH solution is 464 mL.
Explanation:
Molarity is the number of moles of solute present in a liter of solution.
As given moles of [tex]NaNO_{3}[/tex] are 0.850 mol and molarity of [tex]NaNO_{3}[/tex] solution is 0.5 M. Hence, its volume is calculated as follows.[tex]Molarity = \frac{no. of moles}{Volume (in L)}\\0.5 M = \frac{0.850 mol}{Volume}\\Volume = 1.7 L (1 L = 1000 mL)\\= 1700 mL[/tex]
Therefore, the volume for 0.850 mol of [tex]NaNO_{3}[/tex] from a [tex]NaNO_{3}[/tex] solution is 1700 mL.
As given mass of LiOH are 30.0 g from a 2.70 M LiOH (molar mass = 23.95 g/mol) solution. Hence, its number of moles are calculated as follows.[tex]No. of moles = \frac{mass}{molar mass}\\= \frac{30.0 g}{23.95 g/mol}\\= 1.25 mol[/tex]
So, volume for LiOH solution is calculated as follows.
[tex]Molarity = \frac{no. of moles}{Volume (in L)}\\2.70 M = \frac{1.25}{Volume}\\Volume = 0.464 L (1 L = 1000 mL)\\= 464 mL[/tex]
Therefore, volume of 30.0 g of LiOH from a 2.70 M LiOH solution is 464 mL.
substance x is a gas at room tempreture
Answers
Answer:
whats the question?
Explanation:
PLEASE HELP Describe at least two advantages and two disadvantages of using hydropower as a
source of energy.
PLS ONLY ANSWER THE FULL QUESTION ON HERE DO NOT SEND A LINK FOR ME TO CLICK!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
Advantage: Hydropower is a fueled by water, so it's a clean fuel source.
Advantage: It is a domestic source of energy in the US.
Disadvantage: Fish populations can be impacted if fish cannot migrate upstream past impoundment dams to spawning grounds or if they cannot migrate downstream to the ocean.
Disadvantage: Hydropower plants can be impacted by drought. When water is not available, the hydropower plants can't produce electricity.
Explanation:
what would be the observation when you dipp magnesium hydroxide in a blue litmus paper and a red litmus paper. also what would be the conclusion for it
Answers
Answer:
red litmus will turn blue
blue litmus will remain blue
Explanation:
magnesium hydroxide is a base therefore turns red litmus paper blue
what is the difference between transmutation and natural radioactivity
Answers
Howyiong did Newton live?
Answers
Answer:4 January 1643 [O.S. 25 December 1642] Woolsthorpe-by-Colsterworth, Lincolnshire, England
Died 31 March 1727 (aged 84) [O.S. 20 March 1726] Kensington, Middlesex, Great Britain
Explanation:
If one of these stars happens to be blue, which star is most likely to be that color?
Answers
Answer:
(D) 15,000
Explanation:
I took the test trust me.
Answer:
D
Blue stars are the hottest ones, so the hottest of these stars should be a blue one.
Hope that helps! :)
-Aphrodite
Explanation:
करताह!
गर्मियों में घड़े का जल ठंडा क्यों होता है?
Answers
Answer:
I don't understand the question
Explanation:
what is your name
how do you solve the expending form for 3(2+5)
Answers
Answer:
it's expanding from is 15
Answer:
Explanation:
3( 2+5 )
3. ( 7 )
3 . 7= 21
have a good day!4NH3 + 502 - 6H20 + 4NO
How many grams of O2 are required to produce 0.3 mol of H20?
4NH3 + 5O2 --> 6H2O + 4NO
How mant grams of NO are produced from 1.55 mol of NH3?
4NH3 + 5O2 --> 6H2O + 4NO
How many grams of NO is produced if 12g of 02 is combined with ammonia?
Answers
Explanation:
4NH3 + 502 - 6H20 + 4NO
How many grams of O2 are required to produce 0.3 mol of H20?
4NH3 + 5O2 --> 6H2O + 4NO
How mant grams of NO are produced from 1.55 mol of NH3?
4NH3 + 5O2 --> 6H2O + 4NO
How many grams of NO is produced if 12g of 02 is combined with ammonia?
What is the most likely meaning of concentration in paragraph 7?thinking thinking about about one one thing thing in in a a focused focused waywayamount amount of of a a substance substance found found in in waterwaterarea area where where something something comes comes fromfromchance chance to to be be foundfound
Answers
Answer:
amount of a substance found in water.
Answer:
amount of a substance found in water.
Explanation:
What is the wavelength of a 3 x 1012 Hz infrared wave?
A. 3 x 10-3 m
B. 1x 104 m
C. 3 x 1020 m
D. 1 x 10-4 m
SUBMIT
Answers
Answer:
D
Explanation:
wavelength = speed of light/ frequency
= (3 x 10^8 m/s) / (3 x 10^12 Hz)
= 1 x 10^-4 m
Generally the ionization potential in a period increases, but there are some exceptions. The one which is not an exception is
1) Be & B 2) N & O 3) Mg & Al 4) Na & Mg
Answers
Answer:
Generally, the first ionisation energy increases along a period. But there are some exceptions one which is not an exception
Does "non-thermodynamically favored" just mean thermodynamically unfavorable?
Answers
Describe the structure of ammonium laurel sulfates refer to the given diagram. Your answer should include the type of bonding, the elements contained, and the size and shape of the molecule. Write a short paragraph
Answers
Answer:
This ammonium laurel sulfates anion consists of a nonpolar hydrocarbon chain and a polar sulfate end group. It means it has a hydrophilic head and hydrophobic tail. There are ammonium ions, sulfate, and fatty acids present.
Lauryl sulfate has lauric acid attach to sulfate ions with carbon-sulfur bond, the fatty acid formed by the covalent bonds between C-C attached to hydrogens. Sulfur also bound to oxygen by covalent bonds. Nitrogen is surrounded by the four hydrogen atoms in the hydrophilic head.
Lauryl sulfate has lauric acid attach to sulfate ions with carbon-sulfur bond, the fatty acid formed by the covalent bonds between C-C attached to hydrogens.
What is a bond?A chemical bond is what holds atoms together in molecules.
Ammonium Laureth Sulfate is an ammonium salt of ethoxylated lauryl sulfate, a surfactant that contains PEG (polyethylene glycol) in its structure.
Ammonium laurel sulfates anion consists of a nonpolar hydrocarbon chain and a polar sulfate end group.
It means it has a hydrophilic head and hydrophobic tail. There are ammonium ions, sulfate, and fatty acids present.
Lauryl sulfate has lauric acid attach to sulfate ions with carbon-sulfur bond, the fatty acid formed by the covalent bonds between C-C attached to hydrogens.
Sulfur also bound to oxygen by covalent bonds. Nitrogen is surrounded by the four hydrogen atoms in the hydrophilic head.
Learn more about the bond here:
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What is the wavelength of a photon with an energy of 3.26 x 10-19 J?
A. 527 nm
B. 610 nm
C. 492 nm
D. 671 nm
Answers
Answer:
610 nm
Explanation:
Apx
3. Determine the moles of sodium, Na, containing 7.9x1024 atoms.
Answers
Answer:
12.7mol Na.
Explanation:
Hello there!
In this case, according to the concept of mole, which stands for the amount of substance, we can recall the concept of Avogadro's number whereby we understand that one mole of any substance contains 6.022x10²³ particles, for the given atoms of sodium, we can calculate the moles as shown below:
[tex]7.9x10^{23}atoms*\frac{1mol}{6.022x10^{23}atoms} \\\\[/tex]
Thus, by performing the division we obtain:
[tex]12.7molNa[/tex]
Regards!
Which is the function of the organ shown below
Answers
Answer:
c the pancreas produce enzyme that breakdown carbohydrate protein and fat
Viscosity is a measure of:
A. how much resistance to flowing a fluid has.
B. how much space a fluid takes up.
C. how much matter a fluid is made of.
D. how much fluid is in a given volume.
Answers
Viscosity is the measure of how much resistance to flowing any given fluid has; answer choice A. The formula to calculate the viscosity of a liquid is...
F = μA(u/y)
During the workup portion of the reaction of alkenes with HBr as described in the experiment provided, a student transferred the reaction mixture to a separatory funnel, rinsed the reaction flask with diethyl ether, and added the ether rinses to the separatory funnel. The student then added sodium bicarbonate to the separatory funnel. Extremely vigorous bubbling occurred. What did the student do wrong
Answers
Answer:
Explanation:
Because of the acid-base reaction, as sodium bicarbonate is introduced to the separatory funnel, the additional or unreacted HBr reacts vigorously to yield CO2 gas, which exits the separatory funnel together with any dissolved compound(s) in the ether layer. This is due to a wrong and incorrect selection of the solvent mixture and the addition of sodium bicarbonate to an acidic solution.
Nothing to do with it until it has leaked out of the separatory funnel. Even then, the student may separate the components from the remaining reaction mixture by washing the ether coating layer several times with brine water, then running it into a dry sodium sulfate bed and evaporating solvent ether under decreased pressure.
T/F Adsorption is a real problem in gravimetry, especially when the particle size is large
Answers
Answer:
False
Explanation:
Which statement about nuclear fission and nuclear fusion is not correct?
A. Both processes change atoms of one element to another element.
B. Both processes can release huge amounts of energy.
C. Both processes conserve mass.
D. Both processes produce dangerous radiation.
Answers
The statement, that describes about nuclear fission and nuclear fusion is "both processes can release huge amounts of energy."
What is nuclear fission and fusion?Nuclear fission is the process by which an atom's nucleus breaks into two or more smaller nuclei. Nuclear fusion is the process by which two light atomic nuclei merge to produce a single heavier one, releasing huge quantities of energy in the process.
Fusion and fission are both nuclear reactions that yield significant amounts of energy that can be used to generate power. However, fission is the splitting of atoms, whereas fusion is the joining of them.
To put in another way, while both nuclear reactions that generate energy, the methods are vastly different. They both produce a lot of energy.
Hence the correct answer is B.
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Answer:it’s not B
Explanation:
What is the mass (in grams) of 2.55 x 1022 molecules of water?
Answers
Explanation:
hope the picture above make sense:)
Final volume of a .50 M H3PO4 solution prepared from 50 mL of a 6 M H3PO4 solution
Answers
Answer:
600 mL
Explanation:
From the question given above, the following data were obtained:
Initial concentration (C₁) = 6 M
Initial volume (V₁) = 50 mL
Final concentration (C₂) = 0.5 M
Final volume (V₂) =?
Using the dilution formula (i.e C₁V₁ = C₂V₂) we can obtain the final volume as illustrated below:
C₁V₁ = C₂V₂
6 × 50 = 0.5 × V₂
300 = 0.5 × V₂
Divide both side by 0.5
V₂ = 300 / 0.5
V₂ = 600 mL
Thus, the final volume is 600 mL