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Chemistry Questions - All Grades

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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 8 Atomic Structure
Atoms consist of which of the following?
  1. Protons
  2. Molecules
  3. Neutrons
  4. Electrons
Grade 2 Matter
Grade 8 Periodic Table and Elements
In the modern Periodic Table, elements are arranged
  1. according to atomic mass.
  2. according to atomic number.
  3. in alphabetical order.
  4. according to the number of neutrons in their nuclei.
Grade 8 Matter
Sublimation is a change from a
  1. solid to a liquid.
  2. gas to a liquid.
  3. solid to a gas.
  4. liquid to a solid.
Grade 6 Matter
Which of the following descriptions depicts a liquid?
  1. Holds its shape, fixed volume
  2. Takes shape of its container and is the volume of the container
  3. Takes the shape of its container, free surface and fixed volume
Grade 2 Properties of Matter
Grade 2 Matter
Which states of matter do NOT have a definite shape?
  1. gas, matter, and solid
  2. gas and liquid
  3. solid and liquid
Grade 8 Biochemical Pathways
In what process do cells obtain energy from sugar molecules?
  1. photosynthesis
  2. nitrogen cycle
  3. respiration
  4. food chains
Grade 7 Acids and Bases
Grade 8 Matter
Grade 8 Periodic Table and Elements
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