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goblinko [34]
2 years ago
5

Please helpppp I have a quiz tomorrow for Science and I'm having a hard time studying!!!!

Chemistry
1 answer:
Dmitry [639]2 years ago
7 0

Answer:

Mechanical weathering is the physical breakdown of rock into smaller pieces. Chemical weathering is the breakdown of rock by chemical processes. … Ice can also cause mechanical weathering when water gets in cracks in rocks, and then freezes and expands

Explanation:

here

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A balloon occupies a volume of 2.00 l at 40.0oc. how much volume will it occupy at 30.0oc?
hodyreva [135]
<span>Charles' law says "at a constant pressure, the volume of a fixed amount of gas is directly proportional to its absolute temperature".

V </span>α T

Where V is the volume and T is the temperature in Kelvin of the gas. We can use this for two situations as,
V₁/T₁ = V₂/T₂

V₁ = 2.00 L
T₁ = 40.0 ⁰C = 313 K
V₂ = ?
T₂ = 30.0 ⁰C = 303 K

By applying the formula,
2.00 L / 313 K = V₂ / 303 K                   
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7 0
3 years ago
4. Calculate the final concentration if water is added to 1.5 L of a 12 M
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Answer:

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Explanation:

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Molarity dilute soln = [(M x V)conc/V (dilute)] = 1.5L x 12M / 3.0L = 6M final dilute soln

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