Answer:

Explanation:
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In this case, since the combustion of B2H6 is:

Thus, since there is 1:2 mole ratio between the reactant and product, the produced grams of the latter is:


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Answer:
p = 260 kilogram/cubic meter
Explanation:
ρ = 
= 
= 0.26 gram/milliliter
= 260 kilogram/cubic meter
Answer:
If you change the number of neutrons somehow, nothing will happen because it carry's no charge at all.
Explanation:
They have a mass for the particles
There are no totally elastic collisions
There are intermolecular forces