If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

MCAT

Course: MCAT > Unit 8

Lesson 26: Balancing chemical equations
Test prep
MCAT
Foundation 4: Physical processes
Balancing chemical equations
© 2023 Khan AcademyTerms of usePrivacy PolicyCookie Notice

Balancing chemical equations 1

Google Classroom

Problem

Balance the following chemical equation:
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0, point, 75
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
start text, M, g, left parenthesis, O, H, right parenthesis, end text, start subscript, 2, end subscript, plus
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0, point, 75
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
start text, H, C, l, end text, right arrow
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0, point, 75
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
start text, M, g, C, l, end text, start subscript, 2, end subscript, plus
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0, point, 75
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
start text, H, end text, start subscript, 2, end subscript, start text, O, end text
Note: All reactants and products require a coefficient of at least one.
Stuck?
Stuck?