Atoms
weak acid pH
what is a pH of 5-6.9?
500 POINTS!!!!
responsible for the surface of the water on a penny being slightly curved at the edges
what is surface tension?
mixture of water and salt
what is homogeneous?
effect the speed of a reaction
what are enzymes?
TRIPLE POINTS!!!
in chemical reactions, atoms are
what are rearranged?
mixture that is not uniform throughout
what is heterogeneous?
DAILY DOUBLE!!!
term used to describe the energy needed to get a reaction started
what is activation energy?
DAILY DOUBLE!!!
atoms of the same element with the same number of protons but a different number of neutrons
what are isotopes?
loss or gain of electrons
what is an ionic bond?
the process that changes one set of chemicals into another set of chemicals
what is a chemical reaction?
sharing of electrons
what is a covalent bond?
substance that speeds up a chemical reaction
what is a catalyst?
a substance with a pH of 12
what is a strong base?
the substances on the left side of a chemical reaction
what are reactants?