Chemistry I CP Introduction to Chemistry Review Worksheet

Chapter 1 : Matter and Change

  1. ______The primary motivation behind basic research is to
  2. develop new products.
  3. make money.
  4. understand an environmental problem.
  5. gain knowledge.
  1. ______Applied research is designed to
  2. solve a particular problem.
  3. satisfy curiosity.
  4. gain knowledge.
  5. learn for the sake of learning.
  1. ______Chemistry is usually classified as
  2. a biological science.
  3. a physical science.
  4. a social science.
  5. a computer science.
  1. Define the six major branches of chemistry.

______

  1. What is a chemical?

______

  1. What is chemistry?

______

  1. Classify each of the following as a homogeneous or heterogeneous substance.
  2. Granite ______
  3. Sprite ______
  4. Oil-and-vinegar salad dressing______
  5. Salt______
  6. Nitrogen______
  7. Blueberry muffin______
  8. Blood______
  1. Classify each of the following as a physical or chemical change.
  2. Ice melting______
  3. Paper burning______
  4. Metal rusting______
  5. Gas pressure increasing______
  6. Liquid evaporating______
  7. Food digesting______
  1. Compare a physical change with a chemical change.

______

  1. How is energy involved in chemical and physical changes?

______

  1. A horizontal row of elements in the periodic table is called a(n) ______.
  2. The symbol for the element in Period 2, Group 13, is ______.
  3. Elements that are good conductors of heat and electricity are ______.
  4. Elements that are poor conductors of heat and electricity are ______.
  5. A vertical column of elements in the periodic table is called a(n) ______.
  6. The ability of a substance to be hammered or rolled into thin sheets is called ______.
  7. Is an element that is soft and easy to cut cleanly with a knife likely to be a metal or a nonmetal? ______
  8. The elements in Group 18, which are generally unreactive, are called ______.
  9. At room temperature, most metals are ______.
  10. What do elements in the same group in the periodic table have in common?

______

  1. Within the same period of the periodic table, how do the properties of the elements close to each other compare with the properties of elements far from each other?

______

Chapter 2: Measurements and Calculations

  1. “When 1.0 g of a white, crystalline sugar are dissolved in 100. mL of water, the solution is observed to freeze at -0.54ْ C, not 0.0ْ C. The system is denser than pure water.” Which parts of this statement represent qualitative information and which parts represent quantitative information?

______

  1. Complete the following conversions
  2. 100 mL = ______L
  3. 0.25 g = ______cg
  4. 400 cm3 = ______L
  5. 400 cm3 = ______m3
  1. ______Aluminum has a density of 2.70 g/cm3 . What would be the mass of a sample whose volume is 10.0 cm3 ? SHOW YOUR WORK!!
  1. Report the number of significant figures in each of the following values.
  2. 0.00237 g ______
  3. 0.002037 g______
  4. 350. J______
  5. 64 mL______
  6. 1.3 x 102 cm______
  7. 1.30 x 102 cm______
  1. Write the value of the following operations using scientific notation.
  2. 103 x 10-6 ______

10-2

b. 8 x 103______

2 x 105

c. 3 x 103 + 4.0 x 104______

  1. Carry out the following calculations. Express each answer to the correct number of significant figures and use the proper units.
  2. 37.26 m + 2.7 m + 0.0015 m =______
  3. 256.3 mL + 2 L + 137 mL =______
  4. 300 kPa x 274.57 mL =______

547 kPa

d. 346 mL x 200 K =______

546.4 K

7. Round the following measurements to three significant figures.

a. 22.77 g______

b. 14.62 m______

c. 9.3052 L______

d. 87.55 cm______

e. 30.25 g______

8. A pure solid at a fixed temperature has a constant density. We know that

Density = mass or D = m

volume V

  1. Are mass and volume directly or inversely proportional for a fixed density? ______
  2. If a solid has a density of 4.0 g/cm3 , what volume of the solid has a mass of 24 g? ______