Chemistry Summative Test Part One

1. A student is given a sample of an unknown liquid to test in the laboratory. The student thinks that the liquid is water. Which of the following physical properties of the sample is MOST helpful to determine if the liquid is water?

  1. color of the liquid
  2. mass of the liquid
  3. volume of the liquid
  4. boiling point of the liquid
  1. What is the length of side C?

A. 22mm

B. 25cm

C. 1cm

D. 2.2m

  1. What is the volume of the cube?
  2. 15cm
  3. 125 cubic centimeters
  4. 125 cm
  5. 50 cubic centimeters

4. Which of the following instruments is BEST used to measure the volume of a small irregularly shaped solid?

5. The drawing below shows part of a graduated cylinder containing liquid. Based on the sensitivity of the graduated cylinder, what is the volume of the liquid?

70.5 mL

  1. 73.0 mL
  2. 76.7 mL
  3. 87.0 mL

6. Which substance above probably has a larger weight?

  1. Oxygen
  2. Wood
  3. Salad oil
  4. All would have the same weight.

  1. Look at the picture above. If the orange was squeezed for its juice and then placed back onto the balance, what would you predict the mass of the orange to be?
  2. More than 230 grams
  3. Exactly 230 grams because it takes up the same amount of space.
  4. Less than 230 grams
  5. It is not possible to get the juice out of an orange.
  1. If the mass of the beaker and water above is 70 grams, then what is the mass of the liquid if the mass of the beaker is 40 grams?
  2. 110 grams
  3. 30 grams
  4. 35 grams
  5. 100 grams
  1. A 16-meter metal pipe sinks when placed in water. Charles cut the pipe to use for a project. He had 1 cm piece of the metal pipe left. Which statement below best describes what will happen when Charles places the 1 cm piece of pipe into water?
  2. The 1 cm piece of pipe will float because it is smaller.
  3. The 1 cm piece of pipe will suspend in the water.
  4. The 1 cm piece of pipe will sink when placed into the water because the metal’s density stays the same.
  5. The 1 cm piece of pipe will sink because it does not have density.

  1. Based in the chart above, what is the density of soap A?
  2. 1.1 g/cm3
  3. 0.90 g/cm3
  4. 0.95 g/cm3
  5. .50g/cm3

11. The diagram below shows a tall beaker with four different liquids and their densities.

If a ball has a density of 1.73 grams per cubic centimeters is placed in the beaker, where will the ball come to rest?

  1. on top of liquid A
  2. between liquids B and C
  3. on the bottom of the beaker
  4. between liquids C and D
  1. How many protons are in an atom of calcium below?
  2. 20
  3. 40
  4. 60
  5. 40.078
  1. The picture below shows a box from the periodic table of elements. This box tells specific information about the element cobalt. Based on the box, how many protons does an atom of cobalt have?
  2. 59 protons
  3. 27 protons
  4. 32 protons
  5. 86 protons

  1. The picture below shows a box from the periodic table of elements. This box tells specific information about the element nickel. How many protons does nickel have in its atom?
  2. 58 protons
  3. 58.71 protons
  4. 30 protons
  5. 28 protons
  1. How many neutrons are in the nucleus of an atom of helium?
  1. 2
  2. 6
  3. 4.0026
  4. 12
  1. If you want to know the number of neutrons in an atom of a given element, you would
  2. round the atomic mass to the nearest whole number
  3. add the mass number and the atomic number
  4. subtract the atomic number from the mass number
  5. add the mass number and the atomic number, then divide by two

  1. Based on the picture below, how many neutrons are in the nucleus of nickel’s atom?
  2. 31
  3. 58
  4. 28
  5. 87
  1. How many electrons are in an atom of Barium?
  1. 137.33
  2. 56
  3. 193
  4. 81
  1. Look at the picture of the atom below. Choose the letter that represents an electron.
  2. A
  3. B
  4. C
  5. D
  1. Look at the picture, which letter represents the number of electrons in an atom of nickel?
  2. 58
  3. 28
  4. 87
  5. 31
  1. What two subatomic particles make up the nucleus of an atom?
  1. electrons and protons
  2. protons and neutrons
  3. neutrons and electrons
  4. neutrons only
  1. Most of the mass of an atom can be found in the..
  2. number of protons
  3. number of electrons
  4. number of protons + neutrons = nucleus
  5. number of neutrons
  1. Which letter represents the nucleus of an atom?
  2. A
  3. B
  4. C
  5. D
  1. Which element on the periodic table has an atomic mass of 32.065?
  1. Calcium
  2. Helium
  3. Sulfur
  4. Lithium
  1. The atomic mass of an element, represents which of the following?
  2. Number of protons + number of electrons
  3. Number of neutrons + number of electrons
  4. Number of protons + number of neutrons
  5. Number of electrons + number of neutrons + number of protons
  1. What is the atomic mass of Neon?
  2. 10
  3. 20.179
  4. 11
  5. 9
  1. What is the atomic number of Platinum?
  1. 5
  2. 78
  3. 84
  4. 82
  1. Which element has an atomic number of 18?
  2. Fluorine
  3. Neon
  4. Argon
  5. Sulfur
  1. The atomic number of an element is equal to

A. the number of neutrons in the atom

B. the number of protons plus the number of electrons

C. the number of protons plus the number of neutrons

D. the number of protons in the atom

  1. Using the picture of the periodic table below, Noble Gases are located on the far right of the periodic table. Based on what you know about the relationship between location and reactivity and properties of nonmetals, what can you determine about this group?
  1. Extremely reactive
  2. reactive
  3. Less reactive
  4. Not reactive
  1. Metals have various physical properties. Which of the following is not a physical property of metals?
  1. Good conductors
  2. Corrosion
  3. Luster (shininess)
  4. Malleable
  1. Which of the following are all properties of nonmetals?
  1. typically brittle in the solid form, poor conductors of heat
  2. poor conductors of heat, shiny
  3. good conductors of heat and electricity
  4. shiny, good conductors of heat
  1. In Period 3, as the atomic numbers increase, the properties of the elements
    change in what order?
    A. metal to non-metal to noble gas
    B. metal to metalloid to non-metal
    C. non-metal to metalloid to metal
    D. non-metal to metal to noble gas
  1. Periods are horizontal rows in the periodic table that go from left to right. Based on what we know about reactivity of the elements as we go from left to right, which element from the table below has greater reactivity?
  1. Hydrogen
  2. Helium
  3. Both have the same
  4. Neither are reactive
  1. Using the periodic table below, which of the following elements is most reactive?
  1. Na
  2. Al
  3. Au
  4. Pb
  1. Based on the location of Radon (Rn) on the periodic table, what can you determine about its properties?
  1. Not reactive
  2. Not malleable
  3. Low Density
  4. All of the above
  1. Based on the location of Scandium (Sc), what can you predict about this element?
  2. Scandium is a nonmetal, therefore it is a poor conductor.
  3. Scandium is a metalloid, therefore it has properties of both metals and nonmetals.
  4. Scandium is a metal, therefore it does not have luster.
  5. Scandium is a metal, therefore it is malleable and ductile.
  1. Use your periodic table to see where mercury is located. Based on its location, what can you determine about mercury?
  1. Mercury is a metal and is a good conductor.
  2. Mercury is highly reactive.
  3. Mercury is a nonmetal
  4. You cannot determine anything about mercury based solely on location.