If a ballon is heated, what happens to the pressure of the air inside the balloon if the volume remains constant?

The clouds are grey and ground is wet. a quantitative b qualitative

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

What is the value of the standard enthalpy of formation of an element in its most stable form?