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Chemistry Questions - All Grades

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Grade 6 Matter
Evaporation is when                                                                 .
  1. a substance changes from a liquid into a solid material.
  2. a substance changes from a liquid to a gas (or vapor) naturally.
  3. a substance changes from a gas (or vapor) into a liquid.
Grade 8 Matter
What is a gas?
  1. It has a definite shape and volume.
  2. It has a definite shape, but no definite volume.
  3. It has no definite shape or volume.
  4. It has no definite shape, but a definite volume.
Grade 7 Biochemical Pathways
Grade 6 Matter
What are states of matter?
  1. The temperature at which a liquid boils and becomes a gas.
  2. A law that states that for a fixed amount of gas at a constant temperature, the volume of the gas increases as its pressure decreases and the volume of the gas decreases as its pressure increases.
  3. A term used to describe a physical or chemical change in which energy is given of.
  4. The physical forms in which a substance can exist; includes solid, liquid, gas, and plasma.
Grade 7 Solvents, Solutes, and Solubility
Grade 7 Properties of Matter
Grade 8 Atomic Structure
Compared to the charge and mass of a proton, an electron has                                   .
  1. the same charge and a smaller mass
  2. the same charge and the same mass
  3. opposite charge and smaller mass
  4. opposite charge and the same mass
Grade 6 Matter
What is sublimation?
  1. a substance used in a chemical reaction.
  2. the process by which particles leave a liquid and become a gas.
  3. the process by which a solid changes directly into a gas.
  4. a substance made by a chemical reaction.
Grade 7 Periodic Table and Elements
Periodic means                                     .
  1. happening at regular intervals
  2. happening very rarely
  3. happening frequently
  4. happening three or four times a year
Grade 7 Matter
Grade 5 Matter
Grade 9 Properties of Matter
A chemical change refers to                                                                               .
  1. a change in matter when matter independent changes form.
  2. a change in matter that does not change composition.
  3. a change in matter that leads to melting or evaporation.
  4. a change in matter that occurs when substances combine to form new substances.
Grade 11 Reactions
You know that you have a balanced chemical equation when the                                                                                                          .
  1. coefficients of the reactants equal the coefficients of the products
  2. number of atoms of each element in the reactants equal that of each corresponding element in the products
  3. products and reactants are the same chemicals
  4. subscripts of the reactants equal the subscripts of the products
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