Homework 12: Balancing Chemical Equations

Homework 12: Balancing Chemical Equations

8th Grade

20 Qs

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Homework 12: Balancing Chemical Equations

Homework 12: Balancing Chemical Equations

Assessment

Quiz

Chemistry

8th Grade

Easy

Created by

Christina Bagnasco

Used 3+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The Law of Conservation of Matter

tells how many atoms of an element are contained in one molecule or formula unit.

the starting materials in a chemical reaction

the new substances that are formed in a chemical reaction

A law stating that atoms are not created or destroyed during a chemical reaction.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Balance this equation

_Al +_HCl --> _H2 +_AlCl3

2,6,3,2

it's already balanced

4,12,3,4

2,1,4,5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The coefficient in 3H2O is

6

5

2

3

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the left part of a chemical equation called?
2H2 + O2 --> 2H2O

Reactants
Products 
Yields 
Chemical Equation 

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the right part of a chemical equation called...
2H2 + O2 --> 2H2O

Reactants
Products 
Yields 
Chemical Equation 

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the little number after an element in a chemical equation called.
Example: H2

Coefficient 
Subscript
Atom
Equation

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What coefficient should be used to make the following equation balanced?
N2+O2--> _NO 

1
2
3
4

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