Memorize This Pic ---->

Please pick me, or you will lose points

What is percent composition?

The percent by mass of an element in a compound

What is percent yield?

((mass of actual yeild) / (mass of theoretical yeild)) * 100

What is combustion (chemistry definition)?

Molecules with C and H react with O2 to produce CO2 and H2O

Memorize this pic --->

How ones uses mass of a compound to find mass of another one

What is Stoichiometry?

Quantitaive study of reactants and products in a reaction

What is the Mole Method?

coefficients in equation can be interpreted as # of moles

What is theoretical yield?

total possible amount of product produced in a reaction

What is a limiting reactant?

the reactant first used up in a reaction

What is Double Replacement?

Positive and negative ions in two compounds switch places

a reaction where a compound is made from simpler materials

What is an excess reactant?

reactant, where after reaction, has amounts of it left over

What is decomposition?

When an molecule reacts that leads to being broken down

Now, just do some practice of this (actually do problems) and you are all set! YAY!

Thank you and now I will go study some more problems

Balance The Equation in the pic ---->

CaSiO3 + 6HF ----> CaF2 + SiF4 +3H2O

What is single replacement?

A molecule starts out alone, then replaces another element

grams per mole that molecule weighs

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Chemical Reactions and Conversions 2.0

27 termsStudBud Administration44 plays

A quiz for the purposes of helping students to study for a Chemistry exam, and can also be helpful for other people to review the math part of chemical reactions.

Flashcards27 cardsFPractice quizPHost liveL

Questions 27

Answers

1
What is a mole?
A creature that is blind and digs tunnels underground
Mexican sauce made from chili peppers, chocolate on meat
Spy who over a long period has an important position in gov
A unit for conversion
2
Memorize This Pic ---->
Remember do not turst everything you see online kids
This is the right answer*
This tells you how to go from grams, to moles, to # of atoms
Please pick me, or you will lose points
3
Balance Reaction shown in the Picture --->
CH4 + 2O2 ----> CO2 + 2H2O
CH4 + 3O2 ----> CO2 + 4H2O
2CH4 + 4O2 ----> 2CO2 + 4H2O
CH4 + 3O2 ----> CO2 + 2H2O
4
What is percent composition?
The percent of the total mass of an element in a compound
The percent by mass of a molecule in a compound
The total mass of an element in a compound
The percent by mass of an element in a compound
5
What is percent yield?
((mass of actual yeild) / (mass of theoretical yeild)) * 100
the percentage of the product after a chemical reaction
a percentage of yeild
6
What is combustion (chemistry definition)?
the process of burning something
An explosion of pure awesomeness
Molecules with C and H react with O2 to produce CO2 and H2O
Molecules with F and H react with O2 to produce SO4 and H2O
7
Memorize this pic --->
*Remember what happened to Othello when he trusted people
How ones uses mass of a compound to find mass of another one
I am the right answer, trust me please*
Pick this option, it is right.
8
What is Stoichiometry?
Quantitaive study of reactants and products in a reaction
The thing chemistry is infamous for
Qualitative study of reactants and products in a reaction
A horrible, horrible thing. *flees room*
9
What is this?
Combustion
Double replacement
Single replacement
Sythesis
10
What is the Mole Method?
protons in elements can be interpreted as # of electrons
coefficients in equation can be interpreted as # of moles
moles in equation can be interpreted as # of coefficients
11
What is theoretical yield?
A yield of theories
total possible amount of product produced in a reaction
the amount of the product produced in a chemical reaction
a theory, a Chemistry theory
12
What is a limiting reactant?
the reactant NOT first used up in a reaction
reactant with greater quantities than necessary for reaction
the reactant first used up in a reaction
Something that limits the reaction
13
What is the molar mass of glucose?
123.45
180.16
163.07
74.32
14
What is this?
Singleton Replacement
Double replacement
Single replacement
Replacement of singles
15
Balance the Equation ---->
10C3H8 + 2O2 ---> 3H2O + CO2
2C3H8 + 10O2 ---> 8H2O + 6CO2
C3.5H8 + O12 ---> H2O + CO2.4
C3H8 + 5O2 ---> 4H2O + 3CO2
16
1 mole == ?
-602x10^23
6.02x10^-23
6.02x10^23
1 blind brown creature that digs tunnels
17
What is this?
sythesis
Combustion
An explosion
Decomposition
18
What is Double Replacement?
Single Replacement x2
A replacement of two things
Everyone has a dancing partner, like multiplying matrices
Positive and negative ions in two compounds switch places
19
What is synthesis?
a reaction where a compound is made from softer materials
a reaction where a compound is made from simpler materials
a reaction where a compound is made from complex materials
a reaction where a compound is made from harder materials
20
Do you need to balance equations in order to figure out what type of reaction it is?
No? (remember to always be confident in your answers or else
No!
Maybe, both yes and no options make strong cases
Yes!
21
What is Avogadro's number?
6.02x10^23
6.0.2x10^23
6.02x10^24
602x10^23
22
What is an excess reactant?
a rectant that is first used up in a reaction
a excess reactant (grammar important for deciding if right)
a reaction with excess products
reactant, where after reaction, has amounts of it left over
23
What is decomposition?
When an element reacts that leads to being broken down
When molecule reacts that leads to being broken upside-down
When an molecule reacts that leads to being broken down
When a molecule reacts that leads to being broken up
24
Now, just do some practice of this (actually do problems) and you are all set! YAY!
Well, this was a waste of time. I do not need to study
Must study all night long, no sleep!!!
Thank you and now I will go study some more problems
who cares about this class, not AP credit
25
Balance The Equation in the pic ---->
1CaSiO3 + 6HF ----> 1CaF2 + 1SiF4 +3H2O
3CaSiO3 + 6HF ----> 2CaF2 + 6SiF4 +3H2O
CaSiO3 + 6HF ----> CaF2 + SiF4 +3H2O
77CaSiO3 + 6HF ----> 123CaF2 + 42SiF4 + 21H2O
26
What is single replacement?
The getting rid of and replacement of single objects
A molecule starts out alone, then replaces another element
The replacement of a single electron by a proton
A dance
27
Molar Mass is...?
Mass of a mole
grams per mole that molecule weighs
cm^3 per mole that molecule weighs
liters per mole that molecule weighs

Chemical Reactions and Conversions 2.0 Flashcards | StudBud