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- Which group of people studied chemical reactions in the Middle Ages?
- Alchemists
- Chemical reactions create and break down what?
- Chemical bonds
- During a chemical reaction, the molecules and the state of matter change.
- True
- All matter occupies space and has…
- Mass
- What is released during the burning of fuel?
- Water
- Sublimation is the change from a solid state to a…
- Gaseous state
- What term describes the number of atoms involved in a chemical reaction?
- Stoichiometry
- Catalysts do what to chemical reactions?
- Speed them up
- Internal combustion is used by what mode of transport?
- Car
- Most chemical reactions are reversible.
- True
- Reaction kinetics studies what part of a chemical reaction?
- Its speed
- Rust is the product of which chemical reaction?
- Oxidation
- Biochemical reactions are usually controlled by enzymes.
- True
- Chemical reactions are determined by the laws of…
- Thermodynamics
- In science, all elements can bond with each other.
- False
- Which of these is not a type of chemical reaction?
- Abbreviation
- What do chemical reactions normally need in order to take place?
- Energy
- What chemical reaction takes place when clothes dry?
- Evaporation
- Distilling sea water does what?
- It removes the salt
- Chemical reactions begin with reactants and end with…
- Products
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