Balancing and Types of Reactions

Identify the product(s) in this word equation

• Sodium

• Sodium chloride

• Sodium and Chlorine

• Sodium and sodium chloride

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

In a word equation the REACTANTS

• Are written on the right hand side of the arrow

• Are produced in a chemical reaction

• Are always the same

• Are the substances that react together

The new substances formed in a chemical reaction are called

• Reactants

• Atoms

• Products

• Reagents

Tags

NGSS.MS-PS1-2

What are the reactants in this word equation?

• Carbon dioxide and oxygen

• Carbon dioxide and water

• Oxygen and glucose

• Oxygen and water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

In a chemical reaction...

• New atoms are created

• Atoms rearrange

• Atoms are destroyed

• Nothing Happens

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In this chemical reaction zinc is a...

• Product

• Reactant

• Neither

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the correct balanced equation for the following reaction.
A solution of posphoric acid is mixed with lithium hydroxide forming lithium phosphate and water.

• HPO₄ + LiH → LiPO₄ + H₂
• H₂PO₃ + 2LiOH →               2H₂O + Li₂PO₄
• H₃PO₄ + 3LiOH → 3HOH + Li₃PO₄
• H₃P + 3 LiH → Li₃P + 6H

What is the correct balanced equation for the following reaction. Aqueous barium nitrate reacts with sulfuric acid to yield a barium sulfate precipitate and nitric acid 

• Ba(NO₃)₂ + H₂SO₄ → BaSO₄ + 2HNO₃
• BaNO₃ + H₂S → H₂NO₃ + BaS
• BaNO₃ + H₂S → HNO₃ + BaSO₄
• Ba₂NO₃ + H₂SO₄ → H₂NO₃ + BaS

silver nitrate reacts in solution with potassium chromate to yield a silver chromate precipitate and soluble potassium nitrate

• Ag₃NO₃ +3 KCrO₄ → 3Ag(CrO₄) + K(NO₃)
• AgNO₃ + K₂CrO₄ → Ag₂CrO₄ + 2KNO₃
• AgNO₃ + KCrO₄ ← KCrO₄
• Ag(NO₃)₂ + K₂CrO₄ → AgCrO₄ 2KCrO₄

 aqueous zinc chloride reacts with dihydrogen monosulfide gas to yield a zinc sulfide precipitate and hydrochloric acid.

• ZnCl₂ + H₂S→ 2HCl + ZnS
• ZnCl + H₂S → SCl + ZnH₂
• ZnCl₂ +2HS → 2HCl + ZnS₂
• HS₂ + ZnCl → HCl + SZn₂