Chemical Reaction Types and Balancing

Balance this equation.
_CF₄ + _Br₂ -- _CBr₄ + _F₂

• 2,1,2,1

• 1,2,2,1

• 1,2,1,2

• 2,2,2,2

Tags

NGSS.MS-PS1-5

When balancing equations a ____ can be placed to the left of a formula of a substance to make the equations balanced

• charge

• subscript

• random number

• coefficient

One reactant into several products.

• Decomposition

• Synthesis

• Combustion

• Single Replacement

Balance the following:

____ Fe + ____ Cl₂ → ____ FeCl₃

• 1,1,2

• 1,3,1

• 2,2,3

• 2,3,2

Tags

NGSS.MS-PS1-5

When balancing a chemical equation, you can only change _________, you can never change _______!

• coefficients, subscripts

• subscripts, coefficients

• formulas, subscripts

• coefficients, formula units

Tags

NGSS.HS-PS1-7

Which type of reaction is:

C₇H₁₆ + 10 O₂ → 7 CO₂ + 8 H₂O

• Synthesis

• Decomposition

• Single Displacement

• Combustion

Which type of reaction is:

3 Pb + 2 H₃PO₄ → 3 H₂ + Pb₃(PO₄)₂

• Synthesis

• Single Displacement

• Double Displacement

• Combustion

Tags

NGSS.MS-PS1-2

In the equation, 2Mg + O₂ ---> 2MgO, which are the reactants?

• Mg and O₂

• MgO

• Mg and MgO

• O and MgO

The blue numbers in the image represent

• subscripts

• coeffiecients

• roman numerals

• none of the answer options are correct

The red numbers in the image represent

• subscripts

• coeffiecients

• roman numerals

• none of the answer options are correct

Tags

NGSS.MS-PS1-1