what is true? Chemical reactions can onky absorb tgermal energy, chemical reactions can either absorb or release tgermal energy, chemical reactions can only rekease thermal energy

An aqueous solution of calcium hydroxide is standardized by titration with a 0.120 m solution of hydrobromic acid. if 16.5 ml of base are required to neutralize 27.5 ml of the acid, what is the molarity of the calcium hydroxide solution?

What is the wavelength of a 3*10^12 hz infrared wave a 3*10^20m b 1* 10^4m c 3*10^-3m d 1*10^-4 m

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa