120cm^3 of a gas at 25°C exerts a pressure of 750mmHg. Calculate its pressure if its volume is increased to 150cm^3 at 40°c.

What kind of ion is contained in salts that produce an acidic solution? a positive ion that attracts a proton from water a positive ion that releases a proton to water a negative ion that attracts a proton from water a negative ion that releases a proton to water

What does the process of natural selection involve

Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand