Balanced and Unbalanced Equations

Is the following equation balanced or unbalanced ? 
N₂ +3 H₂ --> 2NH₃

• Balanced

• Unbalanced

Tags

NGSS.MS-PS1-5

Identify if the following equation is unbalanced or balanced.

• Unbalanced

• Balanced

Tags

NGSS.MS-PS1-5

Is the  equation balanced or unbalanced?

• balanced

• unbalanced

Tags

NGSS.MS-PS1-5

How can someone determine if an equation is balanced?

• The coefficients must be equal on both sides of the equation

• The number of atoms of each element in the reactants must be higher

• The number of atoms of each element must be equal on both sides of the equation

• The number of atoms of each element in the products must be higher

Tags

NGSS.MS-PS1-5

The numbers placed in ​ (a)   of formulas to balance equations are called ​ (b)   , and they multiply all the atoms in a ​ (c)   . Thus, the symbol “2NaHCO₃” indicates ​ (d)   units of sodium bicarbonate, which contain 2 Na atoms, 2 H atoms, 2 C atoms, and 6 O atoms

(2 X 3= 6, the coefficient times the subscript for O).

• front

• coefficients

• two

• formula

Which of the following models best demonstrates a balanced chemical equation?

• F

• G

• H

• J

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

​ ​ Balance the equation. The options can be used more than once.

​ ​ (a)   K   + Cl₂       →     ​ ​ (b)   KCl

• 2

• 3

• 4

• 1

Tags

NGSS.MS-PS1-5

When balancing an equation, you can change the ​ (a)   of a substance, but you cannot adjust any ​​ (b)   because that would change the formula.

• coefficient

• subscript

Tags

NGSS.MS-PS1-5

Balance this equation:

​ (a)   FeCl₂ + ​ (b)   Cl₂ --> ​ (c)   FeCl₃

• 2

• 1

• 3

• 4

Tags

NGSS.MS-PS1-5

Match the following types of chemical equations to the description that best fits them.

• Describes the reaction with only words

• Balanced Equation

• Shows the formulas of the substances involved AND their relative amounts.

• Skeleton Equation

• Shows only the formulas of the substances involved in the reaction.

• Word Equation

Tags

NGSS.HS-PS1-7