Across
- 2. a change of materials into another, new materials with different properties and one or more than one new substances are formed.
- 4. any of a class of organic chemicals made up of only the elements carbon (C) and hydrogen (H).
- 8. to make it neutral or harmless.
- 9. a whole number placed in front of a chemical formula in a balanced chemical equation that indicates how many molecules or moles of that substance are involved in the reaction.
- 10. the unit of measurement in the International System of Units (SI) for amount of substance.
- 12. cause (a substance) to be deposited in solid form from a solution.
- 13. a substance that takes part in and undergoes change during a reaction.
- 14. a substance that is present at the end of a chemical reaction.
- 15. The number of units in one mole of any substance
Down
- 1. a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.
- 3. 'mass per mole.'
- 5. one where no matter can enter or leave, but energy (like heat) can be exchanged freely.
- 6. a representation of a chemical reaction that shows only the formulas of the reactants and products, without indicating their relative amounts or balancing the equation.
- 7. chemical reactions in which the reactants absorb heat energy from the surroundings to form products.
- 11. one that allows the exchange of both matter and energy with its surroundings.