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lawyer [7]
2 years ago
15

AUDIO

Chemistry
1 answer:
Eddi Din [679]2 years ago
6 0

Answer:

The ice record shows a period in Earth's history when there was an ice age and the global average temperature was

much colder. During this time, the ice record shows the amount of carbon dioxide in the atmosphere decreased, but the

amount of energy from the sun did not change. How did the the total amount of energy in the Earth system change, how

did this change happen, and how did it contribute to the ice age?

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Balance chemical equation Calcium hydroxide + carbon dioxide = calcium carbonate + water
dmitriy555 [2]

Answer:

yaeh

Explanation:

a)Ca(OH)

2

​

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No. of atoms:Ca−1;O−4;H−2;C−1

b)Zn+AgNO

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No. of atoms:Zn−1;Ag−1;N−1;O−3.

7 0
3 years ago
At the same temperature and pressure, 1.00 moles of H2 gas occupies
zubka84 [21]
It’s A ! Hoped it helped
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3 years ago
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7 0
3 years ago
What molarity is prepared when a solution contains 0.277 moles of calcium bromide in 500 mL of solution (must change mL to Liter
Vladimir79 [104]

Answer:

0.554M of Calcium Bromide

Explanation:

Molarity by defintion is #of moles of something/litres of solution.

Therefore, here, we have 0.277 moles of calcium bromide and 500mL (divide 500ml by 1000 to go from mL to L because for every 1L there's 1000mL) or 0.5L.

Molarity= 0.277/0.5 = 0.554M of Calcium Bromide

5 0
3 years ago
Explain the difference between a base unit and a derived unit
Scrat [10]
<span>A SI base unit is the single and direct measurement unit for a physical entity. E.g. For mass it is kg, for time it is sec, A derived unit is determined by a physical equation with the base units, like for velocity equals distance divided by time, in SI units: unit of v (velocity)= m (meter) divided by sec (seconds).

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3 0
3 years ago
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