Toxins Unit 4: Section 1 Practice Quiz
Living By Chemistry lessons 1, 3, 4, 5, 6
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Who is your chemistry teacher? *
1. Used to balance chemical equations *
1 point
2. Dissolving is a *
1 point
3. Which of the following are indications of a chemical change? * You may select more than one answer! *
1 point
Required
4. According to the law of conservation of mass *
1 point
5. What would you observe if a gas was formed in a chemical reaction? *
1 point
6. What would you observe if a solid was formed from two aqueous solutions during a chemical reaction? *
1 point
7. Two compounds combining to form one product describes what type of chemical reaction? *
1 point
8. An element switching places with one part of a compound describes what type of chemical reaction? *
1 point
9. Two compounds switching metals describes what type of chemical reaction? *
1 point
10. One compound breaking apart describes what type of chemical reaction? *
1 point
11. Why does mass seem sometimes seem to decrease when a chemical reaction takes place in an open container? *
1 point
12. For an equation to be balanced *
1 point
13. The arrow in a chemical equation represents *
1 point
14. How many hydrogens, H are in 6 molecules of water, H2O? *
1 point
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