The Law of Conservation Of Mass
Matter can not be...
Created nor destroyed only transformed.
A reaction where there is only one reactant
decomposition
Balance the equation
___ H3PO4 + ___ KOH --> ___ K3PO4 + ___ H2O
1313
What are the small numbers to the bottom right of an element symbol?
Subscript
Symbol used for solid
(s)
How do represent the conservation of mass in chemistry
balanced chemical equations
A reaction type where an element and compound react to form a different element and compound
Single Replacement
Balance the chemical equation:
___ K + ___ B2O3 --> ___ K2O + ___ B
6132
What type of numbers do we use to balance chemical equations?
Coefficients.
Symbol used for liquid
(l)
In what type of system does the law of conservation of mass happen in
closed
A reaction type where a singular compound is formed
Synthesis
Balance the chemical equation:
___ HCl + ___ NaOH --> ___ NaCl + ___ H2O
1,1,1,1
What do we use when shortening elements names?
Element symbol
Symbol used for gas
(g)
What is a closed system?
A system that doesn't allow matter to enter or leave, but can exchange energy with its surroundings.
A reaction type to were the products are formed by the switching of cations in the compounds.
Double Replacement
Balance the chemical equation:
___ Na + ___ NaNO3 --> ___ Na2O + ___ N2
10,2,6,1
What is used to separate reactants from each other
plus sign
Symbol used for aqueous
(aq)
When balancing an equation what happens if you alter the subscript?
Combustion
Balance the chemical equation:
___ C + ___ S8 ---> ___ CS2
4,1,4
What is used to separate reactants from the products.
Yields
What does the term aqueous mean?
Dissolved in water