5 Written Questions
5 Matching Questions
- Acid Precipitation
- a One of several atomic forms of an element, each with teh same number of protons but different number of neutrons.
- b A chemical substance that resists changes in pH by accepting hydrogen ions from or donating hydrogen ions to solutions.
substance that minimize changes in pH.
- c Rain, snow or fog that is more acidic than pH 5.2.
- d An atom's central core, containing protons and neutrons.
- e A subatomic particle with a single positive electrical charge, found in the nucleus of an atom.
5 Multiple Choice Questions
- A starting material in a chemical reaction.
- The sticking together of molecules of the same kind, often by hydrogen bonds.
- A covalent bond in which electrons are shared equally between two atoms of similar electronegativity.
- The making and breaking of chemical bonds, leading to changes in the composition of matter.
5 True/False Questions
Solution → A substance that is dissolved in a solution.
Polar Molecule → A molecule containing polar covalent bonds and having an unequal distribution of charges.
Ocean Acidification → Rain, snow or fog that is more acidic than pH 5.2.
Ion → An atom or group of atoms that has gained or lost one or more electrongs, thus acquiring a charge.
Adhesion → The sticking together of molecules of the same kind, often by hydrogen bonds.