5 Written questions
5 Matching questions
- Nonpolar Covalent Bonds
- Polar Covalent Bond
- Polar Molecule
- a A subatomic particle with a single positive electrical charge, found in the nucleus of an atom.
- b A covalent bond between atoms that differ in electronegativity. The shared electrons are pulled closer to the more electornegative atom, making it slightly negative and the other atom slightly positive.
- c A molecule containing polar covalent bonds and having an unequal distribution of charges.
- d A substance that is dissolved in a solution.
- e A covalent bond in which electrons are shared equally between two atoms of similar electronegativity.
5 Multiple choice questions
- A substance that increases the hydrogen ion concentration in a solution. 0 on pH scale is a strong acid.
- The smallest unit of matter that retains the properties of an element.
- The amount of energy associated with the movement of atoms and molecules in a body of matter.
- An ending material in a chemical reaction.
5 True/False questions
Atomic Mass → The number of protons in each atom of a particular element.
Nucleus → An atom's central core, containing protons and neutrons.
Surface Tension → The sticking together of molecules of the same kind, often by hydrogen bonds.
Electron Shells → An energy level representing the distance of an electron from the nucleus of an atom.
Reactants → A starting material in a chemical reaction.