Want to see correct answers?
Login or join for free!

Search Results for chemical - All Grades

1960 questions match "chemical". Refine Your Search

2 categories match your search criteria.

Select questions to add to a test using the checkbox above each question. Remember to click the add selected questions to a test button before moving to another page.

Previous Page 1 of 98 Next
Grade 11 Periodic Table and Elements
College Properties of Matter
A change in a substance's chemical composition is a:
  1. natural change
  2. chemical change
  3. chemical mixture
  4. chemical synthesis
Grade 11 Reactions
Which statement correctly defines an exothermic reaction?
  1. A chemical reaction with evolution of heat
  2. A chemical reaction with absorption of heat
  3. A chemical reaction with no change in internal energy
  4. A chemical chemical with no change in temperature
Grade 11 Bonds and Mixing
To draw Lewis diagrams, you need to do draw                                          .
  1. The chemical symbol and core electrons
  2. The chemical symbol only
  3. The chemical symbol and valence electrons
  4. The chemical symbol and all electrons
Grade 4 Geomorphology
What are the two types of weathering?
  1. chemical and specific
  2. physical and connective
  3. chemical and physical
Grade 8 Energy and Momentum
Grade 8 Energy and Momentum
Which of these BEST describes the energy transformations in a coal-fired power plant?
  1. Mechanical to Chemical to Electrical to Thermal
  2. Electrical to Chemical to Mechanical to Thermal
  3. Thermal to Chemical to Electrical to Mechanical
  4. Chemical to Thermal to Mechanical to Electrical
Grade 12 Biochemical Pathways
Grade 6 Energy and Momentum
What is the energy transformation of a flashlight?
  1. thermal to electrical to light
  2. light to chemical to electrical
  3. chemical to light to electrical
  4. chemical to electrical to light
Grade 5 Properties of Matter
Mixing lemonade mix into water is a
  1. chemical change.
  2. reaction.
  3. chemical property.
  4. physical change.
Grade 8 Properties of Matter
Grade 8 Bonds and Mixing
A chemical bond is
  1. a group of atoms that are joined together.
  2. the basic particle of matter.
  3. the force that holds two atoms together.
  4. a substance formed from the chemical combination of two or more atoms.
Grade 8 Reactions
A chemical equation is
  1. the process by which particles leave a liquid and become a gas.
  2. a substance made by a chemical reaction.
  3. a statement of chemical symbols that shows what happens during a chemical reaction.
  4. a change in which matter keeps the same chemical properties; a change in size, shape, volume, or state of matter.
Grade 7 Reactions
A chemical change                          .
  1. always can be reversed
  2. never will change state
  3. never can be reversed
  4. cannot be reversed easily
Grade 6 Reactions
What does exothermic mean?
  1. A chemical reaction that absorbs heat energy
  2. A chemical reaction that changes a substance
  3. A chemical reaction that releases heat energy
  4. A chemical change within a substance
Previous Page 1 of 98 Next
You need to have at least 5 reputation to vote a question down. Learn How To Earn Badges.