5 Written questions
5 Matching questions
- covalent bond
- a pure substance with unique properties; formed when two or more different elements combine.
- b mixture that can react with an acid or a base to maintain the pH within a specific range.
- c type of chemical bond formed when atoms share electrons.
- d organic compound containing carbon, hydrogen, and oxygen in a ratio of on oxygen and two hydrogen atoms for each carbon atom.
- e two or more atoms of the same element having different numbers of neutrons.
5 Multiple choice questions
- organic compound made of amino acids joined by peptide bonds; primary building block of organisms.
- center of an atom; contains neutrons and protons. In eukaryotic cells, the central membrane-bound organelle that manages cellular functions and contains DNA
- carbon compound joined by peptide bonds; building block of proteins.
- substance dissolved in a solvent.
- particle without a charge in an atom's nucleus
5 True/False questions
molecule → compound whose atoms are held together by covalent bonds
nucleotide → center of an atom; contains neutrons and protons. In eukaryotic cells, the central membrane-bound organelle that manages cellular functions and contains DNA
solution → substance dissolved in a solvent.
solvent → substance in which another substance is dissolved.
product → substance formed by a chemical reaction; located on the right side of the arrow in a chemical equation.