Chapter 7 Review WS

Chapter 7 Review WS

Name______Period______Date______

UNIT 1 Review

Provide the correct name or formula for the chemical compounds found in each column below:

1. Copper (II) nitrate = 21. Ca3(PO4)2 =

2. Silver sulfate =22. CoCl3 =

3. Ammonium phospide =23. NH3 =

4. Iron (III) cyanide =24. P2O5 =

5. Oxalic acid = 25. HF =

6. Hydroiodic acid =26. CuSO4 ∙ 5HOH =

7. Disulfur trioxide =27. ZnCr2O7 =

8. Butane = 28. Li3PO3 =

9. Magnesium chloride heptahydrate =29. H2CO3 =

10. Sodium chromate =30. N2O4 =

11. Decane =31. C6H14 =

12. Barium permanganate =32. Au(ClO4)3 =

13. Tin (IV) hydroxide =33. H3C6H5O7 =

14. Cesium bromide =34. NaOH =

15. Carbon tetrafluoride =35. Cr(HCO)3 =

16. Dinitrogen monoxide =36. K2S =

17. Sulfuric acid =37. SF6 =

18. Potassium carbonate =38. Mg(ClO2)2 =

19. Methane = 39. HgCl =

20. Lead (II) hydrogen carbonate =40. H3PO4 =

Answer the following UNIT 1 review questions using your notes and textbook:

  1. A large specific heat value for substance means:

a. the substance absorbs heat wellc. the substance absorbs only light and not heat

b. the substance absorbs no heat at alld. the substance absorbs heat poorly

  1. Which of the following mixtures is best described as homogeneous?

a. birdseed mixb. chicken noodle soupc. soild. clean air

  1. A pure substance containing two or more elements bonded in a fixed proportion is a:

a. elementb. compoundc. homogeneousd. heterogeneous

  1. Which of the following is NOT a physical property?

a. white colorb. smooth texturec. reacts with HCld. 4.2 cm in length

  1. Which of the following is NOT a chemical change?

a. a fence rusting over timec. a firework exploding
b. salt dissolving in waterd. food digesting in your stomach

7. Explain the difference between accuracy and precision using definitions and examples:

8. Describe the difference between metallic oxides and oxysalts using definitions and examples:

9. Describe the difference between hydrocarbons and acids using definitions and examples:

10. The formula for water is sometimes written H2O and at other times it is written HOH. Based on our lessons pertaining to classification of matter and categories of compounds, into which 3 categories could water be classified based on its chemical formula?

11. Are density and specific heat extensive or intensive properties? Explain with definitions and reasoning:

12. An unknown liquid has a density of 0.859 g/mL. If you have exactly 13.622 mL of this liquid, what is the mass of the liquid sample (in grams)?

13. Calculate the volume of an aluminum rod with a mass of 123.55 grams and a known density of 2.70 g/cm3?

14. During a recent lab experiment, students placed 35.78 grams of a metal into a test tube. Upon heating and transferring the metal into a cup of water, the temperature of the metal dropped from 95.6 ºC to 29.5 ºC. If 1499 J of heat energy was used, calculate the specific heat of the metal.

15. How much heat energy (in Joules) is needed to raise the temperature of an 88.44 gram block of Nickel (Cp = 0.4442 g/J ºC) by 111 ºC?

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