WorksheetsChem 1: Quiz 1
Total questions: 30
Worksheet time: 24mins
For questions 1-3: Identify if the following changes is a physical or a chemical change.
1. Converting water to water vapor
(a)
For questions 1-3: Identify if the following changes is a physical or a chemical change.
2. Boiling an egg.
(a)
For questions 1-3: Identify if the following changes is a physical or a chemical change.
2. Rusting of iron
(a)
Which of the following does not describe a solid-state of matter?
it may have a regular or irregular shape.
it has greater molecular content than a liquid state.
it has a definite volume.
it is more spacious than a liquid state.
Which of the following is not a pure substance?
water
sand
copper
syrup
You put 1 teaspoonful of salt in 500 mL of water. The salt is entirely dissolved. The resulting solution is a
homogeneous mixture
heterogeneous mixture
compound
element
The picture shown is an example of a
homogenous mixture
heterogeneous mixture
compound
element
Write the correct chemical symbol of mercury.
(a)
True/False: Solids have the strongest forces of attraction than liquids and gases.
True
False
What is the most abundant element in the universe?
(a)
What is the most abundant metal on earth?
La
Al
H
Li
S8
Homoatomic molecule
Heteroatomic molecule
Compound
Mixture
How many atoms are present in the formula: Na2CO3
(a)
Count the number of atoms: Al2SiO5
(a)
The symbol Au refers to
(a)
Count the number of atoms.
(a)
True/False: Atoms are bigger than cells.
True
False
True/False: The burning of wood is an example of chemical change.
True
False
What type of mixture is represented by the picture given?
(a)
Which of the following is an example of intrinsic property?
Density
Mass
Volume
None of the above
Plum Pudding Model
Democritus
JJ Thomson
Rutherford
Erwin Schrodinger
Atomos means
Indivisible
Invisible
Advisable
Irreversible
Quantum Mechanics
Democritus
Dalton
Rutherford
Schrodinger
What determines the shape of an orbital?
n
l
ml
ms
Determines the spatial orientation of electrons
m
ms
ml
l
No two electrons will have the same set of quantum numbers
Pauli’s Exclusion Theory
Aufbau Principle
Heisenberg Uncertainty Theory
Hund’s Rule
Which of the following configurations is incorrect?
1s2
2p1
3d10
3f5
Orbitals are filled out singly before pairing up
Heisenberg Uncertainty Theory
Aufbau Principle
Madelung’s Rule
Hund’s Rule
If n=2, then l could be the following except
2
1
0
None of the given choices
P-orbitals have how many electrons?
2
6
10
14
