Writing Chemical Equations Practice

How many HCl molecules do you need to balance this equation? 
Mg +  __HCl --->  MgCl₂ + H₂

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5

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

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

The substances listed on the right side of a chemical equation are the

• Yields

• Reactants

• Products

• Precipitates

The substances listed on the left side of a chemical equation are the

• Products

• Coefficients

• Precipitates

• Reactants

Tags

NGSS.MS-PS1-1

Which number should go in the blank?
2 Na+ _ Cl₂ -> 2 NaCl

• 1

• 2

• 3

• 0

Tags

NGSS.MS-PS1-5

In the equation shown, what are the reactant(s)?

• N₂ + H₂

• NH₃

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

In the equation shown, what are the product(s)?

• N₂ + H₂

• NH₃

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Is this equation balanced?

• Yes

• No

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

To balance an equation you should:

• ONLY change subscripts.

• ONLY change coefficients.

• Change BOTH subscripts and coefficients.

Tags

NGSS.MS-PS1-1