Chemical Reactions Test

Chemical Reactions Test

Assessment

Flashcard

Chemistry

11th Grade

Hard

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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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