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iragen [17]
3 years ago
8

What must be true of a substance with a lot

Chemistry
2 answers:
LUCKY_DIMON [66]3 years ago
8 0

Answer:

A is the answer.

Explanation:

matrenka [14]3 years ago
4 0

Answer:

It has a lot of matter

plz mark brainliest

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plz answer fast Which is not a crystalline allotrope of carbon? Select one: a. soot b. diamond c. graphite
Norma-Jean [14]

Answer:

graphite

Explanation:

Graphite is opaque, a very good lubricant, a good conductor of electricity, and a thermal insulator. Allotropes of carbon are not limited to diamond and graphite, but also include buckyballs (fullerenes), amorphous carbon, glassy carbon, carbon nanofoam, nanotubes, and others.

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2 years ago
What effect does carbon dioxide have on tap water ​
Alex Ar [27]
The effect that it makes is it turns it into acidic
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3 years ago
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natali 33 [55]

Answer:

I would say is B but I do t really know

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when 45 grams of copper (ii) carbonate are decomposed with heat how many grams of carbon dioxide will be produced
Maksim231197 [3]

Answer:

16.02 g

Explanation:

the balanced equation for the decomposition of CuCO₃ is as follows

CuCO₃ --> CuO + CO₂

molar ratio of CuCO₃ to CO₂ is 1:1

number of CuCO₃ moles decomposed - 45 g / 123.5 g/mol = 0.364 mol

according to the molar ratio

1 mol of CuCO₃ decomposes to form 1 mol of CO₂

therefore 0.364 mol of  CuCO₃ decomposes to form 0.364 mol of CO₂

number of CO₂ moles produced - 0.364 mol

therefore mass of CO₂ produced - 0.364 mol x 44 g/mol = 16.02 g

16.02 g of CO₂ produced

8 0
3 years ago
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