3. classify each of the following materials as a pure substance or mixture. if it is a pure substance, indicate if it is an element or a compound. if it is a mixture, indicate if it is a homogeneous mixture or heterogeneous. (2 points each) questions 1. the copper in a copper wire 2. gatorade 3. chocolate chip ice cream 4. sugar (c12h22o11) 5. glitter nail polish 6. diamond (c) 7. salt (nacl) 8. air 9. helium gas 10. carbon dioxide gas 11. coffee 12. caffeine (c8h10n4o2) 13. tomato soup 14. chicken noodle soup 15. brass 16. pure water 17. pure iron 18. sweat 19. baking soda (nahco3)

Classify each of the following materials as a pure substance or mixture. If it is a pure substance, indicate if it is an element or a compound. If it is a mixture, indicate if it is a homogeneous mixture or heterogeneous. (2 points each)

Questions

1.  

The copper in a copper wire  pure

2.

Gatorade  heterogeneous

3.  

Chocolate chip ice cream    heterogeneous

4.  

Sugar (C12H22O11)   pure

5.  

Glitter nail polish   heterogeneous

6.

Diamond (C)   pure

7.  

Salt (NaCl)  pure

8.  

Air  homo

9.  

Helium gas  pure

10.  

Carbon dioxide gas  pure

11.

Coffee  depends on being black and unsaturated

12.  

Caffeine (C8H10N4O2)   pure

13.  

Tomato soup  heterogeneous

14.

Chicken noodle soup heterogeneous

15.  

Brass  homo

16.  

Pure water  pure

17.  

Pure iron  pure

18.  

Sweat  homo

19.  

Baking soda (NaHCO3)  pure

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