5 Written questions
5 Matching questions
- Acid Precipitation
- Hydrogen Bonds
- a A type of weak chemical bond formed when the partially positive hydrogen atom participating in a polar covalent bond in one molecule is attracted to the partially negative atom participating in a polar covalent bond in another molecule (or in another region of the same molecule).
- 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 A subatomic particle with a single positive electrical charge, found in the nucleus of an atom.
- d Rain, snow or fog that is more acidic than pH 5.2.
- e One of several atomic forms of an element, each with teh same number of protons but different number of neutrons.
5 Multiple choice questions
- The amount of energy associated with the movement of atoms and molecules in a body of matter.
- A strong chemical bond in which two atoms share one or more pairs of outer-shell electrons.
- A solution in which water is the solvent.
- A starting material in a chemical reaction.
- Measures the intensity of heat.
5 True/False questions
Chemical Bonds → An attraction between two atoms resulting from a sharing of outer-shell electrons or the presence of opposite charges on the atoms. The bonded atoms gain complete outer electron shells.
Solvent → The dissolving agent of a solution. Water is the most versatile solvent known.
Polar Molecule → A molecule containing polar covalent bonds and having an unequal distribution of charges.
Surface Tension → The attraction between different kinds of molecules.
Third shell of an atom can contain how many electrons? → 2