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Advocard [28]
3 years ago
10

Which mass is easily forgotten about when trying to prove the law of conservation of mass in a chemical reaction.

Chemistry
2 answers:
Llana [10]3 years ago
7 0

Answer:

gas

Explanation:

vodomira [7]3 years ago
6 0

Answer:

Gas

Explanation:

The law of mass conservation states that the total mass of the reactants should be equal to the total mass of the products, that is, the mass should be conserved.

There are specific occasions when students might think that their findings do not follow the law. This is usually the case when some specific gas is evolved in a reaction.

The problem is that when gas evolves, if it's not soluble in a given solution, it escapes it into the surroundings and it seems at first that the mass of the products is actually lower than expected.

We would need to collect the gas evolved and calculate its mass in order to add it to the mass of the remaining products in order to verify the law in such cases.

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How many liters are present in 10 grams of H2O ?
Luba_88 [7]

Answer:

About 0.01

Explanation:

1 grams of H2O = 0.0010

0.0010 x 10 = 0.01

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3 years ago
There are two open cans of soda on the table. One can was just taken from the refrigerator and the other was taken from the cupb
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3 years ago
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Yakvenalex [24]
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5 0
3 years ago
How many atoms of carbon are in a container that has 0.450 mol of CO2 and 2.55 mol of CaC2?
Fantom [35]

Answer:

The number of carbon atoms in the container is 1.806 × 10²⁴ or the container contains 1.806 × 10²⁴ atoms of carbon

Explanation:

By Avogadro's number, 1 mole of a substance contains 6.02 × 10²³ particles of the substance

Here we have 0.45 mole of CO₂ contains

0.45 × 6.02 × 10²³ particles of CO₂ that is 2.709 × 10²³ particles of CO₂ or equivalent to 2.709 × 10²³ atoms of Carbon

Similarly, 2.55 moles of CaC₂ contains 2.55 × 6.02 × 10²³ particles of CaC₂ or 1.5351 × 10²⁴ atoms of Carbon

The total number of carbon atoms is therefore;

2.709 × 10²³ + 1.5351 × 10²⁴ = 1.806 × 10²⁴ atoms of carbon.

5 0
3 years ago
A particular state of matter has atoms that are packed closely together and vibrating in fixed positions. A phase change occurs
creativ13 [48]

Answer:

it goes to a solid to a liquid

Explanation:

When something is a solid the molecules are impact together and have a small sense of vibration. But as the solid melts away for example ice, the molecules become more loose forming into a liquid

5 0
3 years ago
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