5 Written Questions
5 Matching Questions
- chemical reaction
- a atom that is negatively or positively charged because it have lost or gained one or more electrons.
- b positively charged particle in an atom's nucleus.
- c measure of the concentration of hydrogen ions (H+) in a solution.
- d energy-requiring process by which atoms or groups of atoms in substances are changed into different substances
- e building block of matter; contains subatomic particles—neutrons, protons, and electrons
5 Multiple Choice Questions
- substance in which another substance is dissolved.
- organic compound containing carbon, hydrogen, and oxygen in a ratio of on oxygen and two hydrogen atoms for each carbon atom.
- electrical attraction between two oppositely charged atoms or groups of atoms.
- pure substance composed of only one type of atom; cannot be broken down into another substance by physical or chemical means
- molecule with oppositely charged regions
5 True/False Questions
molecule → compound whose atoms are held together by covalent bonds
isotope → substance dissolved in a solvent.
buffer → mixture that can react with an acid or a base to maintain the pH within a specific range.
neutron → particle without a charge in an atom's nucleus
product → organic compound made of amino acids joined by peptide bonds; primary building block of organisms.