Mid-Unit 3 Test Review- Chemical Reactions

Mid-Unit 3 Test Review- Chemical Reactions

9th - 12th Grade

8 Qs

quiz-placeholder

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Mid-Unit 3 Test Review- Chemical Reactions

Mid-Unit 3 Test Review- Chemical Reactions

Assessment

Quiz

Science

9th - 12th Grade

Medium

NGSS
MS-PS1-5, MS-PS1-2

Standards-aligned

Created by

Kristen Hamblen

Used 2+ times

FREE Resource

8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the law of conservation of mass, which statement is true?

Mass can be created by chemical reactions.

The mass of the products in a chemical reaction do not have to equal the mass of the reactants.

Mass can neither be created nor destroyed.

Mass can only be destroyed by physical transformations.

Tags

NGSS.MS-PS1-5

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following chemical equations proves that the law of conservation of mass is in effect?

Mg2 + LiBr ---> LiMg + Br

2KCl + F2 ---> 2KF + Cl2

Na +O2 ---> Na2O

H20 ---> H2 + O2

Tags

NGSS.MS-PS1-5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For the following synthesis reaction what coefficient would need to be added in front of the water molecule to make it balanced?

NH4NO3 -----> N2O + H2O

None. It is already balanced.

1

2

3

Tags

NGSS.MS-PS1-5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Decomposition reactions are similar to synthesis (combination) reactant because they are opposite of one another.

True

False

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the following equation, which of the following element(s)/molecule(s) is/are not balanced?

Cu + AgNO3 ----> Cu(NO3)2 + Ag

Cu, NO3

NO3

It is balanced

Cu, NO3,  and Ag

Tags

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Using the reactivity series as your guide would the following reaction for water and copper take place?

H2O + Cu --->

Yes a reaction occurs.

There will NOT be a reaction.

Tags

NGSS.MS-PS1-2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Balance the following equation, then select which statement is correct.

AgNO3 + K2SO4 ---> Ag2SO4 + KNO3

 

The equation is balanced.

To balance you must add a subscript of 2 to both the Ag and the K.

To balance the equation, you must add a coefficient of 2 to the AgNO3 molecule AND a 2 to the KNO3 on the products side.

To balance the equation, you must add a coefficient of 2 to the KNO3 molecule.

Tags

NGSS.MS-PS1-5

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Looking at the equation below AND your guide for if halogens will react , would the following single-displacement reaction occur?

Cl2 + MgI2 ---> I2 + MgCl2

TRUE! Yes it will occur.

FALSE. This reaction will NOT occur.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5