Chemical Reactions Test 2023
GRADED A+ (ACTUAL TEST ) Questions and Answers (Solved)
- 2Fe+ NaNO3-> Fe2O3 + ? How many atoms of each type are in
the missing product?
Answer: 3 Na, 3N, 6O
- something that is made of all the same atoms or groups of atoms
Answer: sub- stance
- something that can be observed about a substance, such as color,
smell or boiling point
Answer: property
- the relative size of things
Answer: Scale
- an object, diagram or computer program that helps us understand
some- thing by making it simpler or easier to see
Answer: Model
- the tiny pieces that all matter is made of
Answer: Atoms
- an ending substance that is made during a chemical reaction
Answer: Product
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- a process in which atoms rearrange to form new substances
Answer: Chemical Reaction
- a starting substance that is part of a chemical reaction
Answer: Reactant
- to change the order or position of something
Answer: Rearrange
- Why are ethyl butyrate and isovaleric acid different substances?
Answer: They have different numbers of the same types of atoms.
- If two samples have the same repeating atoms, what is true of
their properties?
Answer: They are the same.
- Where do you find the reactants in a chemical equation?
Answer: On the left side
- What happens in a chemical reaction?
Answer: New substances are formed.
- What is true when you look at a complete chemical reaction
(equation)?-
Answer: There are equal numbers of atoms on each side.
- How are substances on the left and right side of a chemical
equation ( reaction ) different?
Answer: Their atoms have been rearranged.
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