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Chemistry Questions - All Grades

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Grade 7 Matter
What do you call the process of vaporization that occurs throughout a liquid?
  1. sublimation
  2. vaporization
  3. plasma
  4. boiling
Grade 5 Matter
The process by which a liquid changes to a gas is called                .
  1. condensation
  2. evaporation
  3. precipitation
  4. transpiration
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 12 Acids and Bases
A solution with a pH of less than 7 is called                .
  1. neutral
  2. acidic
  3. basic
  4. poison
Grade 4 Matter
Which of the following is a liquid?
  1. ice
  2. milk
  3. snow
  4. uncooked oatmeal
Grade 9 Periodic Table and Elements
Vertical columns are called                .
  1. periods
  2. metals
  3. metalloids
  4. groups
  5. non-metals
Grade 4 Matter
Which of the following BEST describes a liquid?
  1. Particles slide past each other.
  2. Particles stay near their neighbors.
  3. Particles are arranged in a pattern.
  4. Particles bounce away from each other.
Grade 8 Matter
Because of loosely packed molecules, a liquid                                 .
  1. resists flowing
  2. takes the shape of its container
  3. forms droplets
  4. none of the above
Grade 11 Reactions
Based on the Law of Conservation of Mass, we know that the mass of the reactants                                                                            .
  1. always be more than the total mass of the products
  2. always be less than the total mass of the products
  3. sometimes be more and sometimes be less than the total mass of the products
  4. always be equal to the total mass of the products
Grade 7 Periodic Table and Elements
The number of protons in an atom is equal to the                   of the element.
  1. atomic mass
  2. atomic projection
  3. atomic number
  4. total mass
Grade 11 Periodic Table and Elements
Each row of the periodic table is called a                .
  1. period
  2. group
  3. product
  4. reactant
Grade 10 Bonds and Mixing
What type of ion forms when an atom loses electrons?
  1. A positive anion
  2. A negative anion
  3. A positive cation
  4. A negative cation
Grade 8 Matter
A liquid has a                     .
  1. constant temperature
  2. definite shape
  3. crystal structure
  4. definite volume
Grade 9 Macromolecules
Amino acids are the building blocks for                .
  1. carbohydrates
  2. DNA and RNA
  3. lipids
  4. proteins
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