Answer:
for its one mole it is of 28gram. according to mole concept in one mole, there is 6.022*10^23 moles are present. so mass of 1 molecule of nitogen gas is 28/(6.022*10^23)
Answer:
See below.
Explanation:
The volume increases.
This is complies with Boyles Law:
At constant temperature P1 V1 = P2 V2 where P1, P2 are the pressures before and after and V1 and V2 are the volumes before and after.
Answer:
CO2
cardon dioxide is produced
D. In a Chemical reaction, elements are not changed, just rearranged. Small amounts of energy take place.
<span>Below are the choices that can be found from other sources:
a) negative; increases; hidden
b) positive; increases; exposed
c) positive; decreases; hidden
d) negative; decreases; exposed
The answer is </span><span>b) positive; increases; exposed.
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