Category: Chemistry

No.	Topics.	No.	Topics.
1.	ALCOHOLS AND PHENOLS	2.	ALDEHYDES & KETONES
3.	ALKYL HALIDES	4.	ATONTIC STRUCTURE
5.	CARBOXYLIC ACIDS	6.	CHEMICAL BONDING
7.	CHEMISTRY OF HYDROCARBONS	8.	CHETVI ICAL EQUI LIBIRIUM
9.	ELECTROCHE]VIISTRY	10.	FUNDAMENTAL CONCEPTS OF CHEMISTRY
11.	FUNDAMENTAL PRICIPLES OF ORGANIC CHEMISTRY	12.	GASES
13.	INDUSTRIAL CHEMISTRY	14.	LIQUIDS
15.	Macro Mulecule	16.	REACTION KINETICS
17.	S AND P BLOCK ELEMNETS	18.	SOLIDS
19.	THERMOCHEMISTRY & ENERGETICS OF CHEMICAL REACTIONS	20.	TRANSITION ELEMENTS

Reaction stoichiometry is useful in:

Limiting reactant calc
Naming compounds
Drawing orbitals
Coloring flames

Incorrect mole ratio use leads to:

Accurate predictions
Errors in calculations
Faster reactions
More products

For 2Mg + O? ? 2MgO, mole ratio between Mg and O? is:

2:01
1:02
1:01
2:02

A ratio of 3:2 in an equation implies:

Reactant imbalance
3 moles react to form 2
3 products form 2 reactants
Mass ratios

Chemical equations reflect:

Molar relationships
Thermal expansion
Atomic radius
Conductivity

In a lab, if 3 moles of Cl? react with H?, how many moles of HCl form?

3
6
1
2

The mole ratio from 2C?H?? + 25O? ? 16CO? + 18H?O between O? and CO? is:

25:16:00
2:16
8:16
16:25

1 mole of Zn reacts with how many moles of HCl in Zn + 2HCl ? ZnCl? + H??

1
2
3
0.5

Mole ratios are essential for:

Predicting product moles
Neutralizing acids
Separating mixtures
Evaporating solvents

Stoichiometry assumes reactions are:

Explosive
Spontaneous
Ideal
Complete

For 4Fe + 3O? ? 2Fe?O?, mole ratio of Fe to Fe?O? is:

4:02
2:02
2:03
3:02

Balanced equations are necessary for:

Law of conservation
Law of gravity
Gas collection
Volume calculation

Stoichiometric coefficients show:

Mass
Volume
Moles
Charge

For H? + Cl? ? 2HCl, how many moles of Cl? needed for 3 moles of H??

3
1.5
6
2

When using mole ratios, ensure:

Equations unbalanced
Temperature is high
All gases involved
Units are consistent

Given 4NH? + 5O? ? 4NO + 6H?O, what is the mole ratio of O? to H?O?

5:06
4:06
5:04
4:05

The term ?stoichiometry? involves all except:

Energy yield
Mole relationships
Mass-to-mole conversion
Reaction ratios

In the reaction C?H? + 5O? ? 3CO? + 4H?O, the mole ratio of C?H? to H?O is:

1:05
1:03
1:04
3:04

Mole ratios can only be used when:

Equations are balanced
Reactants are solid
Products are gases
Masses are known

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