Which of the following is true about photosynthesis?
a) it is an exothermic reaction.
b) it is an endothermic reaction.
c) it produces carbon dioxide.
d) it occurs in animals.

atomic theory is
a) subject to change if new information is discovered.
b) a solution to the problem of differing isotopes.
c) unchangeable.
d) a descriptive table that lists all of the elements.

two nonmetals from group 16 are likely to form a(n)
a) metallic bond.
b) double bond.
c) ionic bond.
d) covalent bond.

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.