Balancing
You must change the ______________ to balance a compound
Subscripts
What state of matter is (aq)
Dissolved in water or a solution
hydrogen gas + oxygen gas
Synthesis
silver metal + nickel (II) acetate
What metal compound is made?
Silver Acetate
1. How water is written scientifically?
Dihydrogen Monoxide
You must change this to balance a Chemical Reaction
Coeficients
The symbol (l) means
a) gas b) heat c) burn d) liquid.
D - Liquid
C7H17 + O2 ---> CO2 + H2O
Combustion
sulfuric acid + manganese (III) hydroxide
What is made with hydroxide?
Water
In which hand is the Statue of Liberty's torch?
right
What do we call an unbalanced equation
Skeleton equations
water solutions of potassium iodide plus tin (II) nitrate
would be written as?
KI(aq) + SnNO3(aq)
gold + silver chloride
Single Replacement
solid calcium carbonate plus aluminum chloride in a water solution yields aqueous calcium chloride plus ____________?
aluminum carbonate
There are 12 buttons on a touch tone phone. What 2 symbols bear no digits?
*, #
What is wrong ?
6 CO2 + 6 H2O → C6H12O6 + 6 O
O2
What state of matter is a precipitate?
(S) - Solid
Decomp Reaction - Give an example
Breaking apart anything
H2O ---> H2 + O2
In a chemical reaction the total mass of the substance before the reaction compared to the total mass of the substance after the reaction is
a) usually smaller b) usually greater c) equal d) sometimes greater and sometimes smaller.
C - Equal
A Cockroach's brain is in its?
Body
What is wrong?
Ba3N2 + 6H2O → 3 Ba(OH)2 + NH3
6H2O & 2NH3
sodium metal is placed in water. The solid sodium reacts with liquid water to produce molecular hydrogen gas and the ionic compound sodium hydroxide (a solid in pure form, but readily dissolved in water).
(Balance + sates)
2Na(s)+2H2O(l)⟶2NaOH(aq)+H2(g)
potassium phosphate + barium chloride
Double Replacement
A balanced equation for a reaction between water solutions of sodium sulfate and lead (II) nitrate. A precipitate of lead (II) sulfate is formed with an aqueous solution of the other product.
What is the other product?
Sodium Nitrate
Frogs have a _____° visual range
360
The eyes of a frog are made and positioned in such a way that at any given moment they can see everything around them, including what is behind them. As if this did not make them difficult enough to sneak up on, frogs also sleep with both of their eyes open.