19. Give the meaning of each of the following symbols when used in a chemical equation. a →
b.
c. (5)
d
e. (1)
f. (aq)
h. 1
Calyst
k Pressure

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.

Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.