can someone solve me some papers I don't have time and I need to submit today please I will make you brilliant

When the volume and number of particles of a gas are constant which of the following is also constant

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

How does the viscosity of magma change as magma cools?