Which ph change represents a hundredfold increase in the concentration of h30+? a) ph 3 to ph 2 (b) ph 7 to ph 9 (c) ph 5 to ph 3 (d) ph 13 to ph 14

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

What does the xylem do? stores the glucose captures the sunlight absorbs oxygen into the leaf carries water from the roots to the leaves