3 years ago

What has law is in use when you place dry ice into a balloon

Chemistry

1 answer:

inn [45]3 years ago

4 0

Answer:

When dry ice is exposed to warm air, a gas called carbon dioxide is produced through a process called sublimation

Explanation:

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Which of the following is the best definition of an independent variable

Soloha48 [4]

Answer:

that one

Explanation:

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3 years ago

When one form of energy is converted to another form in any physical or chemical change, energy input alwasy equals energy outpu

aliya0001 [1]

In the context of chemistry, yes. Energy input is always equal to the energy output.

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2 years ago

2. Balance the equation below, and answer the following question: What volume of chlorine gas, measured at STP, is needed to com

Juliette [100K]

Balanced equation: 2Na(s) + Cl₂(g) ---> 2NaCl(s)

when we have STP conditions, we can use this conversion: 1 mol = 22.4 L

first, we have to convert grams to molecules using the molar mass, and then use mole to mole ratio from the balanced equation.

molar mass of Na= 23.0 g/mol
ratio: 2 mol Na= 1 mol Cl₂ (based on coefficients of balanced equation)

calculations:

$6.25 g Na ( \frac{1 mol Na}{23.0 g} ) ( \frac{1 mol Cl_2}{2 mol Na} ) ( \frac{22.4 L}{1 mol} )= 3.04 L$

8 0

2 years ago

Sublimation and boiling both happen at the surface of the substance true or false

dolphi86 [110]

The answer to your question is false, boiling happens below the surface of a substance.

6 0

3 years ago

Read 2 more answers

Carbondioxide gas is't collectable in water. why?

Lisa [10]

Answer:

carbon dioxide is a gas so it isn't collected over water.

Explanation:

it works for insoluble gases such as hydrogen,or gases that do not dissolve easily in water such as ammonia and chlorine are readily soluble in water and are not collected this way.

hope it is helpful for you.

4 0

3 years ago