Alpha particle emission occurs when:
a. the nucleus has more than 83 protons
b. the ratio of neutrons to protons in the nucleus is too high to be stable
c. the nucleus has a mass of more than 82 amu
d. the ratio of neutrons to protons in the nucleus is not exactly balanced

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.

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?

Water is a highly important natural resource. which of these would be the best method to conserve water? a) drinking bottled water b) monitoring the ph of rivers c) treating and re-using wastewater d) testing nitrate levels in groundwater