Reaction/ Equations
Equations
Reaction Types
Nomenclature Review
FOR SCIENCE!
100
What kind of reactions are discussed in this unit? Physical or chemical?
Chemical!
100
Which side are the reactants and products on in a chemical equation?
Reactants (left side) --> Products (right side)
100
How many types of reactions are there?
6! (maybe 7 depending on how you look at your notes)
100
What are the two types of bonds discussed in class?
Ionic and Covalent bonds!
100
How many colors are in the rainbow? Double points if you get it in the right order!
200
What are the 4 signs that indicate a Chemical change??
(unexpected) color change
Heat produced/absorbed
Solid forms (precipitate, ppt)
Bubbles (gas) forms
200
What is the law of conservation of mass?
Mass is neither created or destroyed and must be conserved in a chemical reaction.
200
What are the 6 different types of reactions?
Synthesis
Decomposition
Single replacement
Double replacement
Combustion
Oxidation-Reduction (advanced chem)
200
Which type of bond uses prefixes when naming compounds?
Covalent compounds! (the non metal + non metal)
200
True or False?
Electrons are smaller than atoms.
TRUE!
300
What are the 4 states of matter included in a chemical equation?
Solid (s), Liquid (l), Gas (g), and Aqueous (aq)
300
When balancing equations, do we change the coefficients or the subscripts in a chemical equation?
coefficients!!
300
How can you easily identify a combustion reaction?
A hydrocarbon fuel combining with oxygen and producing water and carbon dioxide.
300
Which type of metal will need a Roman Numeral in it's name to show their charge?
Transition metals! + Lead and Tin
300
Which is the most abundant element in the universe?
400
Given the following description, what are the states of matter for each compound/element.
Solid potassium reacts with water to form hydrogen gas and potassium hydroxide dissolved in water.
Potassium = solid
Water = liquid
Hydrogen = gas
Potassium hydroxide = aqueous
400
What is missing from this chemical equation to make it complete?
NaCl(l) 🡪 Na(l) + Cl2 (g)
It's not balanced!!
2NaCl(l) 🡪 2Na(l) + Cl2 (g)
400
What's the difference between a single replacement and double replacement reaction?
Single Replacement:
A + BC --> AC + B
Double Replacement:
AB + CD --> AD + BC
400
What is the formula for calcium carbonate?
CaCO3
400
Does sound travel faster in the air or in water?
Water!
500
What's the difference between aqueous and liquid?
"Aqueous" refers specifically to a substance dissolved in water, meaning it's a solution where water is the solvent, while "liquid" simply describes a substance in its liquid state, which could be any liquid, not necessarily water
500
Write and balance the following description:
Ammonia gas (NH3) combines with oxygen to produce the following vapors, water and nitrogen monoxide (NO).
2NH3(g) + 2O2(g) --> 3H2O(g) + 2NO(g)
500
What type of reaction is this chemical equation?
SINGLE REPLACEMENT!!
500
Name the following compound Fe(NO3)3
iron (III) nitrate
500
What is the heaviest organ in the human body?
The liver
