Balancing and Classifying Chemical Equations

Balance this equation
_Al +_HCl --> _H₂ +_AlCl₃

• 2, 6, 3, 2

• it is already balanced

• 4, 12, 3, 4

• 2, 1, 4, 5

Tags

NGSS.MS-PS1-5

Which of the following shows the correct way to balance the chemical equation?
Fe + O₂ -> Fe₂O₃

• 4Fe + 3O₂ -> 2Fe₂O₃

• 2 Fe + 3O₂ -> Fe₂O₆

• 4 Fe + O₆ -> 2Fe₂O₃

• None of the options are correctly balanced.

Tags

NGSS.MS-PS1-5

Balance this equation.
_CH₄ + _O₂ --> _CO₂ + _H₂O

• 1,2,1,1

• 2,1,2,1

• 1,2,1,2

• 0,2,0,2

Tags

NGSS.MS-PS1-5

Balance this equation.
_SnO₂ +_H₂-->_Sn +_H₂O

• 1,1,2,1

• 1,2,1,1

• 1,2,1,2

• 1,2,2,1

Tags

NGSS.MS-PS1-5

Balance this equation:

​ (a)   Fe + ​ (b)   O₂ --> ​ (c)   Fe₂O₃

• 4

• 3

• 2

• 1

• 0

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Write a Balanced Equation for this reaction:
C₂H₄ + 2 O₂ -->

• C₂O₂ + H₄

• CO₂ + HOH

• CO + H

• 2 CO₂ + 2H₂O

Tags

NGSS.MS-PS1-5

Which represents a balanced chemical equation?

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Balance the equation:

c

e

f

5

3

1

2

4

6

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Which of the following statements is true regarding a balanced chemical equation?

• It indicates that the reaction occurs spontaneously.

• It shows the exact colors of the reactants and products.

• It represents that mass is conserved in a chemical reaction.

• It provides the exact duration of the reaction.

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

What is the purpose of balancing chemical equations?

• To ensure that the equation is mathematically correct

• To make sure that the mass of the reactants equals the mass of the products according to the Law of Conservation of Mass

• To identify which substances are reactants and which are products

• To determine the temperature at which the reaction occurs

Tags

NGSS.MS-PS1-5