Chemical Equations

What is the part of the chemical equation in green called? 
Fe + S --> FeS

• products
• reactants
• yield
• chemical formula

What is the little number after an element in a chemical equation called.
Example: H₂

• Coefficient 
• Subscript
• Atom
• Equation

What coefficient should be used to make the following equation balanced?
N₂+O₂--> _NO 

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-7

Which problem is balanced?
(Check ALL answers)

• PbO₂ + 2H₂
• SO₂ + H₂0 --> H₂SO₄
• 2Na + 2H₂O --> 2NaOH + H₂

Tags

NGSS.HS-PS1-7

How many elements are in C₆H₁₂O₆?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-LS1-6

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

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-7

Is this balanced?
Al + O₂ → 2Al₂O₃

• Yes
• No

Tags

NGSS.HS-PS1-7

What are the products of this reaction?
Cu+ AgNO₃--> 

• Cu(NO₃)₂+Ag
• CuNO₃ + Ag
• CuAg+NO₃
• Cu+ AgNO₃

Tags

NGSS.HS-PS1-2

Write a Balanced Equation for this reaction:
C₂H₄ + 2 O₂ -->

• C₂O₂ + H₄
• CO₂ + HOH
• CO + H
• 2 CO₂ + 2H₂O

Tags

NGSS.HS-PS1-7

Predict the products for the this reaction:
K + HCl --> 

• KCl + H2
• KHCl 
• KH + Cl2
• KCl + H

Tags

NGSS.HS-PS1-2