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Science Test Study
| Question | Answer |
|---|---|
| What's the formula for salt? | NaCl |
| What's the formula for rust? | Fe2O3 |
| What's the formula for sugar? | C6H12O6 |
| What is H2O? (compound, molecule, etc.) | compound |
| What is H2? (Compound, molecule, etc.) | element or molecule |
| What are molecules? | two or more of the same atoms that combine together |
| What are compounds? | two or more different elements that combine together |
| What does the atomic number mean? |