Name the ion that changes red litmus paper to blue .

50 pts plz what is the physical state of matter of baking soda.

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?

What can be found in the ionosphere