socratic.org/questions/when-balancing-a-chemical-equation-why-can-you-change-coefficients-but-not-subsc

Oct 26, 2015 **...** ... in order to "**create**" 2 molecules of water ( H2O ), **you** would **need to** ... When
**you** change the **coefficients**, **you**'re only changing the number of ...

sciencing.com/coefficient-chemical-formula-5375105.html

Apr 24, 2017 **...** If **you**'re dealing with atoms of hydrogen, then a mole measures the amount ... We
**add coefficients** to compounds in chemical equations to assure that ... If, from our
stoichiometric calculations, we know we **need** 5 moles of ice ...

web.sonoma.edu/users/w/wilsonst/courses/math_45/roa.html

To multiply terms, multiply the **coefficients** and **add** the exponents on each
variable. ... Of course, there may well be like terms which **you** will **need to**
combine.

www.dummies.com/education/science/chemistry/how-to-balance-chemical-reactions-in-equations

To find out how much of each element **you need**, **you** have to balance the
equation ... So the only thing **you** can do to balance the equation is **add**
**coefficients**, ...

www.thoughtco.com/steps-for-balancing-chemical-equations-606082

Feb 12, 2017 **...** **You** can see **you need to** double the O2 **coefficient** in order to get 4 O seen on the
... Now **add** O and H2O as needed to balance oxygen: MnO4^{-} ...

www.khanacademy.org/science/chemistry/chemical-reactions-stoichiome/balancing-chemical-equations/v/balancing-chemical-equations-introduction

How to balance a chemical reaction by making sure **you** have the same number
of ... silly but why do we have to multiply these molecules instead of just **adding**
atoms? ... So, all **you** can do is change the **coefficients** so that **you** have the same
number .... In order to balance the two **you need** 2x Al (6+ total) and 3x O (6- total)
.

www.khanacademy.org/science/chemistry/chemical-reactions-stoichiome/balancing-chemical-equations/v/balancing-chemical-equation-with-substitution

**You** can always balance an equation without using substitution. ... Then, that
gives **you** 6 hydrogen atoms on the left, so **you need to** have a 3 **coefficient** in
front ...

www.chemistry.wustl.edu/~coursedev/Online%20tutorials/Stoichiometry.htm

We balance reactions by **adding coefficients** in front of the reactants and products
. ... If **you** can see the balanced equation by sight, **you** don't **need to** go by the ...