5 Written questions
5 Matching questions
- physical change
- a on the right
- b a change from one state (solid or liquid or gas) to another without a change in chemical composition
- c on the left
- d a body of matter without definite shape
- e made of two or more substances (elements, compounds, or both) that are combined
5 Multiple choice questions
- substances formed by the joining of elements through chemical bonding. every molecule of a compound is the same.
- a molecule composed of one kind of atom; cannot be broken into simpler units by chemical reactions.
- of definite shape and volume
- a change that produces matter with a different composition than the original matter
- the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity
5 True/False questions
acid → any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
base → any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water
volume → of definite shape and volume
liquid → any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
law of conservation of mass → the smallest unit of matter that has the characteristics of an element; consists of three main types of subatomic particles: protons neutrons and electrons.