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Dafna11 [192]
3 years ago
5

Which of the ffamily contains liquids, solids and gases?

Chemistry
1 answer:
Naddik [55]3 years ago
7 0
The hydrogen one because who doesnt like snoballs'

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Is the following sentence true or false? the mass of an object changes with location.
Whitepunk [10]
This is false because it doesn't matter about the mass
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3 years ago
Calculate the percentage of copper in copper oxide
WITCHER [35]

Well, look up the atomic weights of copper and oxygen; add them appropriately; divide the total for the copper by the total for the molecule; then multiply by 100 to get it as a percentage.

5 0
2 years ago
Molly just started a new job. She needs to fill out a _____ so that her employer knows how much tax to take out. 1099 form tax r
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Answer:

The answer is "W-4 form".

Explanation:

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4 0
3 years ago
PLZ HELP IM CONFUSED
Marina CMI [18]

Answer:

9.1 mol

Explanation:

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CO (g) + 2H2 (g) → CH3OH (l)

According to the above balanced equation, 2 moles of hydrogen gas (H2) are needed to produce 1 mole of methanol (CH3OH).

To convert 36.7 g of hydrogen gas to moles, we use the formula;

mole = mass/molar mass

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This means that if;

2 moles of H2 reacts to produce 1 mole of CH3OH

18.17mol of H2 will react to produce;

18.17 × 1 / 2

= 18.17/2

= 9.085

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2 years ago
What makes a substance pure?
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5 0
3 years ago
Read 2 more answers
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