Across
- 6. / chemical reactions in which the reactants absorb heat energy from the surroundings to form products.
- 8. / a substance that enters into
- 9. / where two compounds react
Down
- 1. / a chemical reaction where one reactant is exchanged for one ion of a second reactant
- 2. / chemical reaction in which less energy is needed to break bonds
- 3. / type of reaction in which multiple reactants combine to form a single product
- 4. /when one reactant breaks down into two or more products
- 5. / an important number that characterizes some physical property of a technical or scientific object
- 7. / formed from chemical reactions