Word test 1

Edit Answers
1234567
Across
  1. 3. A chemical reaction where a single substance breaks down into simpler substances.
  2. 4. a substance formed when two or more atoms bonded together.
  3. 5. A substance that can not be further divided into simpler substances by chemical methodsCompounds = A pure substance formed by chemical combination of two or more elements in fixed proportions.Compounds = A pure substance formed by chemical combination of two or more elements in fixed proportions.
  4. 6. A chemical reaction where two or more substances join to form a new substance.
  5. 7. The smallest particles in chemical reaction.
Down
  1. 1. chemical reaction where two or more substances join to form a new substance.
  2. 2. A pure substance formed by chemical combination of two or more elements in fixed proportions.