What is the total number of protons and neutrons in an atom called?
Topic 1B Review

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Chemistry
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Mass number
2.
FLASHCARD QUESTION
Front
What term describes how quickly or slowly reactants turn into products in a chemical reaction?
Back
Reaction Rate
3.
FLASHCARD QUESTION
Front
What does the presence of bubbles in a chemical reaction indicate?
Back
It could show that a gas is forming.
4.
FLASHCARD QUESTION
Front
What is a major cause of acid rain?
Back
Burning fossil fuels for energy.
5.
FLASHCARD QUESTION
Front
How is acid rain formed?
Back
Sulfur dioxide and nitrogen oxide mix with water in the air.
6.
FLASHCARD QUESTION
Front
What is the atomic number of an element?
Back
The number of protons in the nucleus of an atom.
7.
FLASHCARD QUESTION
Front
What is a catalyst?
Back
A substance that increases the rate of a chemical reaction without being consumed.
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