Pls help turn these chemical equations to word equations

NI3 = N2+I2
HI = H2+I2
Al+O2 = Al2O3
K+S = K2S
Na+H2O = NaOH+H2
CH4+O2 = CO2+H2O
Na2O+H2O = NaOH
PbO+C = Pb+CO2
HgO = Hg+O2

Which of the following methods uses the decay of atomic particles in an object to find its exact age? a. fossil dating b. geologic dating c. radioactive dating d. relative dating

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

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?