Chem Rxns- Rxn Types- Formula Writiing

Identify this type of reaction,
Cl₂ + 2KI _-->  I₂ + 2KCl

• Synthesis
• Single Replacement
• Double Replacement
• Decomposition

Which chemical reaction forms Carbon Dioxide and Water?

• Double Replacement
• Single Replacement
• Combustion
• Decomposition

Which reaction type is the following: AgF + CaCl₂ --> AgCl + CaF₂

• Decomposition
• Single Replacement
• Synthesis
• Double Replacement

Balance this reaction:

____ Na₃PO₄ + ____ KOH ---> ____ NaOH + ____ K₃PO₄

• 1,3,3,1

• 1,3,2,1

• 2,3,3,1

• 1,1,3,1

Balance this reaction:

____ RbNO₃ + ____ BeF₂ ----> ____ Be(NO₃)₂ + ____ RbF

• 1,1,1,1

• 1,2,1,1

• 2,1,1,2

• 2,1,2,1

What do the coefficients need to be in the following equation in order to be balanced?

_Al +_HCl → _H₂ +_AlCl₃

• 2, 6, 3, 2

• it is already balanced

• 4, 12, 3, 4

• 2, 1, 4, 5

The red numbers in the image below represent ________

• subscripts
• coefficients
• I don't know, and don't want to try
• None of the answers are correct

The blue numbers in the image below represent ________

• I don't know, and don't want to try
• coefficients
• subscripts
• none of the answers are correct

Tags

NGSS.HS-PS1-7

Potassium and Sulfur create...

• KS

• KS₂

• K₂S

• K₂S₂

Tags

NGSS.MS-PS1-1

How do the following two elements bond together?
Al³⁺  O^2-         

• AlO
• Al₂O₃
• Al₃O₆
• Al₃O₂

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2