Ch. 2 - Atoms & Water

Which subatomic particle has a neutral charge?

• Electron

• Neutron

• Proton

• Neutrino

Isotopes are atoms of the same element but differ in the number of?

• Electrons

• Orbitals

• Protons

• Neutrons

Changing the number of protons forms ions of the same element

• True

• False

Typically, an increase in temperature causes a rate of a chemical reaction to

• Decrease

• Increase

• Stop

• Remain the same

Which of the following has the highest concentration of H+ ions?

• pH = 12

• pH = 2

• pH = 8

• pH = 6

Which of the following properties of water is a consequence of its ability to form H bonds?

• Cohesion

• High specific heat

• Adhesion

• Ability to function as a solvent

• All of these

An atom with more electrons than protons is a/an

• Element

• Isotope

• Cation

• Anion

Most of the mass of an atom is found in the

• Nucleus

• Orbitals

• Energy shells

• Electrons

If a molecule loses an electron, it has been

• Reduced

• Oxidized

• Electrified

• Deprotonated

Which of the following types of chemical bonds is the weakest?

• Covalent bond

• All are equal strength

• Hydrogen bond

• Ionic bond