Which of the following has a negative charge?
a. nucleus
b. electrons
c. protons
d. nuetrons

Which type of reaction always has an element and a compound as reactants

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

Water is initially present in a state where its molecules are far apart. during a change of state, its molecules slow down. which change of state has most likely taken place? from a gas to a liquid from a liquid to a gas from a solid to a liquid from a gas to a plasma