Balancing chemical equations

what is the LEFT part of the chemical equation called?

2H₂ + O₂ ---> 2H₂O

• yields

• products

• Reactants

• chemical equation

Balance this equation:

H₂ + Cl₂ ---> HCl

• H2 + Cl2 ---> 2HCl

• H₂ + Cl₂ ---> 4HCl

• H₂ + Cl₂ ---> H₂Cl₂

• H₂ + Cl₂ ---> 2H2Cl

Tags

NGSS.MS-PS1-5

what is the little number after the element in a chemical equation called? Example: H₂

• equation

• atom

• coefficient

• Subscript

Is the following equation balanced?

NaHCO₃ ---> Na₂CO₃ + H₂O + CO₂

• Yes

• NO

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

How many Oxygen atoms are in 2SO₄?

• 1

• 8

• 2

• 4

Tags

NGSS.MS-PS1-1

Balance this equation:

HgO ---> 2Hg + O₂

• It is balanced.

• HgO ---> Hg + 2O₂

• 2HgO ---> 2Hg + O₂

• 2HgO ---> Hg + O₂

Tags

NGSS.MS-PS1-5

What is the right part of a chemical equation called?

2H₂ + O₂ ---> 2H₂O

• Reactants

• Yields

• Products

• Chemical Equation

What is the number before a chemical formula called?

Example: 2H₂ + O₂ ---> 2H₂O

• Coefficient

• atom

• subscript

• equation

Is the following equation balanced?

Al + O₂ ---> 2Al₂O₃

• yes

• no

Tags

NGSS.MS-PS1-5

What is the total number of atoms present in 5Na₃PO₄?

• 3

• 55

• 40

• 8

Tags

NGSS.MS-PS1-1