Element, Compounds, Mixtures and Molecules

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QuestionAnswer
1. Is sand an element, compound or mixture?mixture
2. Is gold an element, compound or mixture?element
3. Is air an element, compound or mixture?mixture
4. Is water an element, compound or mixture?compound
5. Is soft drink an element, compound or mixture?mixture
6. Is hydrogen an element, compound or mixture?element
7. Is carbon dioxide an element, compound or mixture?compound
8. Is brass an element, compound or mixture?mixture
9. Is diamond an element, compound or mixture?element
10. Hydrochloric acid has the formula HCl, and is made up of hydrogen and which other element?chlorine
11. Chloroform has the formula CHCl3, and is made up of hydrogen, chlorine and which other element?carbon
12. Table salt has the formula NaCl, and is made up of chlorine and which other element?sodium
13. Sulfuric acid has the formula H2SO4, and is made up of hydrogen, oxygen and which other element?sulfur
14. Hydrochloric acid has the formula HCl, and is made up of hydrogen and which other element?chlorine
15. Ammonia has the formula NH3 and is made up of hydrogen and which other element?nitrogen
16. What is the chemical symbol for silver? (hint: look up at the periodic table)Ag
17. What is the chemical symbol for lead? (hint: look up at the periodic table)Pb
18. What is the chemical symbol for mercury? (hint: look up at the periodic table)Hg
19. What is the chemical symbol for Potassium? (hint: look up at the periodic table)K
20. True or false: metals are poor conductors of electricityfalse
21. Tru or false: If you conduct the experimenet correctly it is possible to destroy matterfalse
22. True or false: gases are colourless and odourlessfalse
23. True ot false: Only twenty-two of the elements on the periodic table are non-metalstrue
24. True or false: The nucleus of the atom is made up of protons and electronsfalse
25. True or false: Ms Clarke is the bestest science teacher evertrue

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