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elena55 [62]
2 years ago
12

Which of the following best describes the kinetic theory?

Chemistry
2 answers:
valentina_108 [34]2 years ago
5 0

Answer:B

Explanation:

Atoms and molecules are always moving or vibrating. (just took the test)

marissa [1.9K]2 years ago
3 0

Answer:

★ B. Atoms and molecules are always moving or vibrating.

Explanation:

Hope you have a great day :)

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Jupiter, Saturn, Uranus, and Neptune: what is one reason why life probably does not exist on these four planets? A) They have no
mariarad [96]

Answer: B.) They are all gas planets

I hope this helps!

7 0
3 years ago
What two conditions must be present for osmosis to occur?
svlad2 [7]

Answer: For osmosis to occur the membrane must be

1. permeable to water but impermeable to the solute

2. The concentration of the solute must be different on the two sides of the membrane.

Explanation:

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2 years ago
Circle the letter of cach sentence that is true about silica.
miskamm [114]
The answer is either A or B I’m not sure
7 0
3 years ago
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25 g of NH, is mixed with 4 moles of O, in the given reaction:
FromTheMoon [43]

Answer:

a. NH3 is limiting reactant.

b. 44g of NO

c. 40g of H2O

Explanation:

Based on the reaction:

4NH₃(g) + 5O₂(g) → 4NO(g) + 6H₂O(l)

4 moles of ammonia reacts with 5 moles of oxygen to produces 4 moles of NO and 6 moles of water.

To find limiting reactant we need to find the moles of each reactant and using the balanced equation find which reactant will be ended first. Then, with limiting reactant we can find the moles of each reactant and its mass:

<em>a. </em><em>Moles NH3 -Molar mass. 17.031g/mol-</em>

25g NH3*(1mol/17.031g) = 1.47moles NH3

Moles O2 = 4 moles

For a complete reaction of 4 moles of O2 are required:

4mol O2 * (4mol NH3 / 5mol O2) = 3.2 moles of NH3.

As there are just 1.47 moles, NH3 is limiting reactant

b. Moles NO:

1.47moles NH3 * (4mol NO/4mol NH3) = 1.47mol NO

Mass NO -Molar mass: 30.01g/mol-

1.47mol NO * (30.01g/mol) = 44g of NO

c. Moles H2O:

1.47moles NH3 * (6mol H2O/4mol NH3) = 2.205mol H2O

Mass H2O -Molar mass: 18.01g/mol-

2.205mol H2O * (18.01g/mol) = 40g of H2O

3 0
3 years ago
Read 2 more answers
What is back titration?​
Yakvenalex [24]

Answer:

Back titration is a titration done in reverse; instead of titrating the original sample, a known excess of standard reagent is added to the solution, and the excess is titrated.

I hope it's helpful!

3 0
2 years ago
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