Answer:

Explanation:
Hello,
For the given chemical reaction:

Whose heat of reaction is 464.8 kJ/mol which means that energy is absorbed due to the chemical reaction, we can compute the moles of calcium carbide via the following relationship:

Then, since the molar mass of calcium carbide is 64 g/mol, the yielded mass turns out:

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Answer:
When two or more atoms chemically bond together, they form a molecule. Sometimes the atoms are all from the same element.
A Compound.
Explanation:
For example, when three oxygen atoms bond together, they form a molecule of ozone (O3). If a molecule forms from atoms of two or more different elements, we call it a compound.
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Answer:
The amount of sun that is being reflected and how hot the sunlight being reflected is
Explanation:
Upon a constant pressure (P), volume (V) of a gas will vary in direct proportion to changes in temperature (T). So V1/T1 = V2/T2
V2 = V1T2/T1 = (500)(300)/150
V2 = 150000/150 = 1000 mL
Answer:
21 gam
Explanation:
mH2SO4 = mddH2SO4.C% = 150. 14% = 21g