Chemical Equations

Is this equation balanced?

• Yes

• No

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Is this equation balanced?

• Yes

• No

Tags

NGSS.MS-PS1-5

Is this equation balanced?

• Yes

• No

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In a chemical equation "aq" means ​ (a)   . This word means "dissolved in water". The compound or element has been put into water to form a solution ​or homogenous mixture. "l" means ​ (b)   . this means the compound or element is in the liquid phase. It has not been mixed with anything else. The arrow in a chemical equation means ​ (c)   . On the left side of the arrow are the ​ (d)   , and on the right side of the arrow are the ​​ (e)   .

• Aqueous

• liquid

• yields

• reactants

• products

The starting materials in a chemical equation are the ​ (a)   The ending substances are the ​ (b)   ​

• reactants

• products

• yields

• ingredients

Tags

NGSS.MS-PS1-5

Balance this equation ​ (a)   N₂ + ​ (b)   H₂ --> ​ (c)   NH₃

• 1

• 3

• 2

Tags

NGSS.MS-PS1-5

​ (a)   CuSO₄ + ​ (b)   Fe --> ​ (c)   Cu + ​ ​ (d)   FeSO₄

• 1

• 3

• 4

• 5

• 6

• 7

• 8

• 9

• 2

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In a chemical equation, the arrow points towards the ​ (a)   of the reaction.

• products

• reactants

• elements

• compounds

Match to show which chemicals are the reactants and which are the products in this chemical equation

• Reactant

• NaOH

• Reactant

• H₂O

• Product

• H₂

• Product

• Na

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Number placed in front of a chemical formula is a (a)   and a small number placed after an element is a ​ (b)  

• product

• coefficient

• reactant

• subscript

• superscript