1. the following statement are true about catalysts except
a. it is substance that increases the rate of reaction.
b. it alters the reaction's equilibrium between reactants
c. it shortens the time needed to reach equilibrium
d.in living organisms enzymes catalyze almost every chemical reactions
2. which of the following is not true about water
a. water has a high surface tension
b. water molecules are cohesive
c. water is the universal solvent
d. water is non-polar molecule
3. the bond formed between sodium and chlorine to form sodium chloride is
a. ionic bond
b. covalent bond
c. hydrogen bond
d. sodium chloride bond