Chemical Reactions Test
Flashcard
•
Chemistry
•
11th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a single replacement reaction?
Back
A single replacement reaction is a type of chemical reaction where one element replaces another element in a compound, resulting in a new element and a new compound.
2.
FLASHCARD QUESTION
Front
Identify the reactants in the reaction: 2Mg + O2 ---> 2MgO.
Back
The reactants are magnesium (Mg) and oxygen (O2).
3.
FLASHCARD QUESTION
Front
What is a double replacement reaction?
Back
A double replacement reaction is a type of chemical reaction where two compounds exchange ions or bonds to form two new compounds.
4.
FLASHCARD QUESTION
Front
What is the general form of a single displacement reaction?
Back
The general form of a single displacement reaction is A + BC → AC + B, where A is an element that displaces B from the compound BC.
5.
FLASHCARD QUESTION
Front
In the reaction Pb + FeSO4 ----> PbSO4 + Fe, what type of reaction is this?
Back
This is a single displacement reaction.
6.
FLASHCARD QUESTION
Front
What is the law of conservation of mass?
Back
The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.
7.
FLASHCARD QUESTION
Front
How do you balance a chemical equation?
Back
To balance a chemical equation, adjust the coefficients of the reactants and products to ensure that the number of atoms of each element is the same on both sides of the equation.
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