Simple Balanced Chemical Equations

Is the following equation balanced?

Al + O2 ---> 2Al2O3

• Yes

• No

Tags

NGSS.MS-PS1-5

What is the part of a chemical equation called?
2H_{2 +} O₂ --> 2H₂O

• Reactants

• Products 

• Yields 

• Chemical Equation 

What is the left part of a chemical equation called?

• reactants

• products

• yields

• chemical equaitons

How many atoms of aluminum are on each side of the following equation: 4Al + 3O₂ --> 2Al₂ O₃

• 2

• 6

• 1

• 4

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

What is the part of a chemical equation called...
2H_{2 +} O₂--> 2H₂O

• Reactants

• Products 

• Yields 

• Chemical Equation 

The small numbers in a chemical formula:

(the BLUE numbers)

• Subscripts

• Coefficients

• Numbers

• Molecules

Balance this equation:

H2 + Cl2 ---> HCl

• It is balanced.

• H2 + Cl2 ---> 2HCl

• 3H2 + Cl2 ---> 6HCl

• H2 + 3Cl2 ---> 6HCl

Tags

NGSS.MS-PS1-5

the symbolic representation of a chemical reaction

• Long Hand

• Short Hand

• Electron Configuration

• Chemical Equation

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Describes the number of molecules in a compound and is used to balance a chemical reaction. 

• coefficient 

• subscript

• superscript

• SI unit

What are the correct coefficients when this equation is balanced?
KClO₃  --> KCl  +  O₂

• 2,2,2

• 2,2,3

• 1,2,3

• 3,3,3

Tags

NGSS.MS-PS1-5