5 Written questions
5 Matching questions
- Nonpolar Covalent Bonds
- Aqueous Solution
- Trace elements
- a A covalent bond in which electrons are shared equally between two atoms of similar electronegativity.
- b The amount of energy associated with the movement of atoms and molecules in a body of matter.
- c A solution in which water is the solvent.
- d an element that is essential for life but required in extremely minute amounts.
- e A compound resulting from the formation of ionic bonds; also called an ionic compound.
5 Multiple choice questions
- A molecule containing polar covalent bonds and having an unequal distribution of charges.
- A scale we used to describe how acidic or basic a solution is. The scale ranges from 0-14, 0 being the most acidic and 14 being the most basic. 7 is neutral (pure water)
- A substance that is dissolved in a solution.
- An atom's central core, containing protons and neutrons.
- A measure of how difficult it is to stretch or break the surface of a liquid. Water has a high surface tension because of the hydrogen bonding of surface molecules.
5 True/False questions
Electron Shells → An energy level representing the distance of an electron from the nucleus of an atom.
Isotopes → A substance that is dissolved in a solution.
Fourth shell of an atom can contain how many electrons? → 2
The nucleus of an atom contains...?? → A covalent bond in which electrons are shared equally between two atoms of similar electronegativity.
What 4 elements make up about 96% of living matter? → Oxygen, carbon, hydrogen, and nitrogen.