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Chemistry Questions - All Grades

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Grade 6 Thermodynamics
Compared with the Pacific Ocean, a cup of hot chocolate has                                              .
  1. more thermal energy and a higher temperature.
  2. less thermal energy and a higher temperature.
  3. more thermal energy and a lower temperature.
  4. less thermal energy and a lower temperature.
Grade 11 Atomic Structure
In the Bohr model,                                                            .
  1. the electrons stay in place
  2. the elections travel around the nucleus in an oval orbit
  3. the electrons travel around the nucleus in a circular orbit
  4. the electrons move side to side around the nucleus
  5. none of the above
Grade 9 Periodic Table and Elements
Horizontal rows on the periodic table are called                .
  1. Catoids
  2. genome
  3. groups
  4. periods
  5. families
Grade 7 Acids and Bases

This question is a part of a group with common instructions. View group »

Bleach is a                .
  1. weak acid
  2. weak base
  3. strong acid
  4. strong base
Grade 6 Properties of Matter
Molecules in this phase of matter are tightly packed together.
  1. Solids
  2. Liquids
  3. Gases
Grade 10 Reactions
What type of reaction occurs when one element takes the place of another element in a compound?
  1. synthesis
  2. double-replacement
  3. combustion
  4. single-replacement
Grade 8 Periodic Table and Elements
The number of protons in the nucleus of an atom of that element is                .
  1. atomic number
  2. atomic weight
  3. mass number
  4. isotopes
Grade 10 Properties of Matter
When you shake sugar and sand together in a test tube, they form a                .
  1. mixture
  2. solution
  3. suspension
  4. compound
Grade 11 Atomic Structure
Ionization energy trends                                                             .
  1. becomes greater up and to the right of the periodic table.
  2. becomes greater up and to the left of the periodic table.
  3. becomes greater down and to the right of the periodic table.
  4. becomes greater down and to the left of the periodic table.
Grade 6 Properties of Matter
Which change in state is illustrated?
Particle State - Solid→Particle State - Liquid
  1. melting
  2. freezing
  3. evaporation
  4. condensation
Grade 6 Properties of Matter
                is the measure of how much matter an object has.
  1. Weight
  2. Gravity
  3. Mass
  4. Speed
Grade 8 Matter
When water changes into water vapor, this is called                .
  1. condensation
  2. transpiration
  3. precipitation
  4. evaporation
Grade 8 Acids and Bases
The table shows the pH of four substances.
pH Values
SubstancepH
Blood7.3
Orange Juice4.0
Ammonia11.0
Milk6.5

Which lists the substances from least to most acidic?
  1. ammonia, blood, milk, orange juice
  2. orange juice, milk, blood, ammonia
  3. ammonia, milk, blood, orange juice
  4. orange juice, blood, milk, ammonia
Grade 7 Periodic Table and Elements
The Periodic Table is a table that lists                .
  1. matter
  2. rocks
  3. elements
  4. chemistry
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