B because....................
<span>Air pressure decreases as you move higher in the atmosphere. Think of a column of air directly over your body. ... Just as air pressure decreases with altitude, so does the density of air.</span>
Balanced equation :
1 CaCO3(s) = 1 CaO(s) + 1 CO2(g)
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10^-8 is 10x more Molar than 10^-9, because of the exponents so it’d be 10x more concentrated than 10^-9. The answer is 10^-8.
Answer:
the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.
Explanation:
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