Across
- 1. A pure substance that cannot be broken down into simpler substances by ordinary chemical
- 4. a substance that readily accepts electrons in a chemical reaction, causing the oxidation of another substance
- 5. Oxidation numbers become more negative
- 7. State which is not liquid or gas
- 8. Substance that undergoes change during a reaction
Down
- 2. kind of matter with uniform properties.
- 3. a substance that donates electrons to another substance, causing that substance to be reduced
- 4. a process where a substance loses electrons
- 5. involves the transfer of electrons between chemical species
- 6. Something composed of two or more separate elements