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Troyanec [42]
3 years ago
11

Explain why rain water is not pure

Chemistry
2 answers:
Leviafan [203]3 years ago
5 0

Answer:

before it evaporated into the air, it was on the Earth...and it could have been contaminated/dirtied. There isn't a process during evaporation that cleans water...you have to purify it yourself.

Explanation:

loris [4]3 years ago
3 0

Answer:

because the sun dissolves water with minerals in it so when it rains water with minerals rain down from clouds

Explanation:

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A 7.47 g sample of calcium carbonate [CaCO3 (s)] absorbs 85 J of heat, upon which the temperature of the sample increases from 2
Alex_Xolod [135]

Answer:

Specific heat of calcium carbonate(C) = 0.82 (Approx)

Explanation:

Given:

Energy absorbs (q) = 85 J

Change in temperature (Δt) = 34.9 - 21 = 13.9°C  

Mass of calcium carbonate = 7.47 g

Find:

Specific heat of calcium carbonate(C)

Computation:

Specific heat of calcium carbonate(C) = q / m(Δt)

Specific heat of calcium carbonate(C) = 85 / (7.47)(13.9)

Specific heat of calcium carbonate(C) = 85 / 103.833

Specific heat of calcium carbonate(C) = 0.8186

Specific heat of calcium carbonate(C) = 0.82 (Approx)

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Answer:

Respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce use able cellular energy. This energy is used to fuel growth and all of the normal cellular functions.

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They combine to produce cellular energy.

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3 years ago
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What is the meaning of N, E, M, and S in periodic table Need ASAP!
Luba_88 [7]

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In a neutralization reaction, an aqueous solution of an Arrhenius acid reacts with an aqueous solution of an Arrhenius base to p
solmaris [256]

Answer: c. Salt and Water

Explanation:

For example;

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H2SO4   +     KOH ------------->   K2SO4      +    H2O

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3 years ago
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