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kow [346]
3 years ago
5

Please help l need to correct it

Chemistry
2 answers:
Drupady [299]3 years ago
4 0
You cannot create or destroy mass so the answer is A. Mass is conserved through any change of state.
salantis [7]3 years ago
4 0
The answer to the question is a
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What is the equilibrium expression for the reaction below?<br> 2Na(s) + 02) Na2O2,(s)
iogann1982 [59]

Answer:

{ \tt{k _{c} = \frac{[Na_{2} O _{2} ]}{[Na] {}^{2} [O _{2} ]}  }}

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3 years ago
If you pour water into a hot metal pan, the water will absorb heat energy from the pan. Will the water come to the same temperat
Marina CMI [18]

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Yes

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3 years ago
A 200.0-mL sample of helium gas is in a cylinder with a movable piston at 110 kPa and 275 K. The piston is pushed in until the s
Nutka1998 [239]

Answer:

P₂ = 261 KPa

Explanation:

Given data:

Volume of sample = 200 mL

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Final pressure = ?

Solution:

Formula:

P₁V₁/T₁ = P₂V₂/T₂

P₂ = P₁V₁T₂ /T₁ V₂

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P₂ = 6820000 KPa / 26125

P₂ = 261 KPa

3 0
3 years ago
Water is a(n)______ molecule, and it easily dissolves _______ molecules. A. covalent, polar B. ionic, covalent C. ionic, ionic D
andrew-mc [135]

Answer:

A. covalent, polar

Explanation:

Water is a(n) covalent molecule, and it easily dissolves polar molecules.

6 0
3 years ago
Read 2 more answers
The same elements may combine in different ratios to form the same compound?
xeze [42]
Ans:

It is also known as law of multiple proportion. It states that if two elements form more than one compound between them then the ratios of the masses of the second element which combine with the fixed mass of first element will be ratios of small whole numbers.


Hope it helps!
5 0
2 years ago
Read 2 more answers
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