Chemical reactions
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
+3
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the term for a substance that can dissolve many things, often referred to as the 'universal solvent'?
Back
Water
2.
FLASHCARD QUESTION
Front
Balance the following chemical equation: KClO₃ → ____KCl + ____O₂
Back
2KClO₃ → 2KCl + 3O₂
Tags
NGSS.MS-PS1-5
3.
FLASHCARD QUESTION
Front
What type of process is baking bread and cooking an egg?
Back
Endothermic processes
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-4
4.
FLASHCARD QUESTION
Front
Balance this equation: HgO → ____Hg + ____O₂
Back
2HgO → 2Hg + O₂
Tags
NGSS.MS-PS1-5
5.
FLASHCARD QUESTION
Front
In chemical reactions, what must be equal to the reactants?
Back
Products
Tags
NGSS.MS-PS1-5
6.
FLASHCARD QUESTION
Front
What is a chemical reaction?
Back
A process that involves the rearrangement of the molecular or ionic structure of a substance.
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-2
NGSS.MS-PS1-5
7.
FLASHCARD QUESTION
Front
What is the law of conservation of mass?
Back
In a chemical reaction, mass is neither created nor destroyed.
Tags
NGSS.MS-PS1-5
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