Name: ______

Chapter 2 Practice Worksheet

Section 2.1:

  1. Classify each of the following as an extensive or intensive property.
  1. Colorb. Volume c. Massd. Boiling Point
  1. Which of the following is NOT a physical property? (select only one)
  1. Solid a room temperature
  2. Decomposes when heated
  3. Dissolves in water
  4. Tastes sweet
  1. Complete the following table.

Physical State / Definite Shape? / Definite Volume? / Easily Compressed?
gas
no / no
yes
  1. What is a vapor?
  1. Classify each of the following as a solid, liquid, gas, or vapor.
  1. Steam
  2. Apple juice
  3. Gasoline
  4. Hockey puck
  5. Air
  1. Which of the following is NOT a physical change? (select only one)
  1. Dissolving sugar in water
  2. Burning gasoline in an engine
  3. Evaporating sea water to obtain salt
  4. Slicing a piece of bread

Section 2.2:

  1. What is another name for a homogeneous mixture?
  1. Classify each of the following as a mixture or a substance.
  1. Table sugar
  2. Tea
  3. Table salt
  4. Windex
  5. Neon
  1. Classify each of the following as a homogeneous or heterogeneous mixture.
  1. Table salt dissolved in water
  2. Carbon mixed with sand
  3. Filtered apple juice
  4. Vegetable soup
  5. Fresh squeezed lemonade
  6. Gasoline
  7. Chunky peanut butter
  8. Oil and vinegar salad dressing
  1. What are 2 common methods of separating mixtures in a lab?
  1. How would you separate a mixture of water and salt?

Section 2.3:

  1. What is the difference in an element and a compound?
  1. Classify each of the following as an element, compound, or mixture.
  1. Table salt
  2. Water
  3. Iron
  4. Stainless steel
  1. Identify the following diagrams as an element, compound, or mixture.
  1. Write the element name for the following symbols.
  1. Pbb. Kc. Aud. Fe
  1. Write the symbol for the following element names.
  1. Tin
  2. Sodium
  3. Silver
  4. Carbon
  1. How many of what elements make up ammonia, NH3?

Section 2.4:

  1. List the 5 signs that a chemical reaction has occurred.
  1. Classify each of the following as a physical or chemical change.
  1. A puddle is dried by the sun.
  2. A dark cloth is faded by the sunlight.
  3. Bread is toasted.
  4. Soap is mixed with water.

Use the following reaction to answer the next 3 questions.

Carbon dioxide plus water yields carbonic acid.

  1. Name the product(s) of this reaction.
  1. Name the reactant(s) of this reaction.
  1. If 44g of carbon dioxide react completely with 18g of water, what is the mass of carbonic acid formed?
  1. When 16g of methane gas combines with 64g of oxygen, 44g of carbon dioxide form, plus water. What mass of water is produced?
  1. What does the law of conservation of mass state?
  1. Can a chemical change be reversible?