Density
Phys. & Chem. Prop. of Matter
Atomic Theory and Periodic Table
Ionic & Covalent Bonds
Particle Theory of Matter
100
Which of the following is a unit of density? a) D b) kg/m3 c) g d) mL e) g/cm2
b) kg/m3
100
Which of the following is not a physical property of matter? a) Density b) Boiling point c) Freezing point d) Flammability e) Hardness
d) Flammability
100
Which scientist named the Neutron? a) Ernest Rutherford b) James Chadwick c) Niels Bohr d) J J Thomson e) John Dalton
a) Ernest Rutherford
100
What is a positively charged ion called? a) An anion b) A fermion c) A cation d) A boson e) Bob
c) A cation
100
Which of the following statements about the particle theory of matter is false? a) All matter is composed of tiny particles b) Particles of different elements have different properties c) When particles are heated they move faster d) Particles are attracted to each other, the further apart they are the stronger the attraction e) Particles are always moving
d) Particles are attracted to each other, the further apart they are the stronger the attraction
200
When combined in a beaker, vegetable oil forms a layer on top of water. Which of the following statements is true? a) Vegetable oil is less dense than water. b) Water is less dense than vegetable oil. c) Water and vegetable oil have the same density. d) If you decreased the force of gravity, water and oil would mix. e) Vegetable oil has a lower boiling point than water.
a) Vegetable oil is less dense than water.
200
Which of the following elements is considered ductile at room temperature and pressure? a) Hydrogen b) Copper c) Chlorine d) Sulfur e) Carbon
b) Copper
200
Which of the following statements is not found in Dalton’s atomic theory? a) All matter consists of tiny particles called atoms. b) Atoms are indestructible and unchangeable. c) Elements are characterized by the mass of their atoms. d) When elements react, their atoms combine in simple, whole-number ratios. e) Electrons are only found in certain stable orbits around the nucleus of an atom.
e) Electrons are only found in certain stable orbits around the nucleus of an atom.
200
Which of the following statements about ionization is false? a) If an atom loses an electron it gains a positive charge. b) If an atom has less than half its valence shell filled it tries to lose all its valence electrons. c) Ions either have a full or empty valence shell d) Only electrons in the valence shell participate in ionization. e) A noble gas will lose all of its valence electrons when it forms an ion.
e) A noble gas will lose all of its valence electrons when it forms an ion.
200
2. Which of the following phenomenon is not explained by the statement: When particles are heated they move faster. a) The boiling of water. b) The freezing of iron. c) A balloon expanding on a warm day. d) Loosening the lid of a jar when run under warm water. e) The magnetization of an iron bar by stroking it with a magnet.
e) The magnetization of an iron bar by stroking it with a magnet.
300
Which of the following statements is false? a) At room temperature and pressure, gases are less dense than solids or liquids. b) Denser materials are not necessarily harder than less dense materials. c) The closer together the atoms are in a material the denser the material is. d) All solids are denser than liquids. e) When two materials are mixed, the denser material will settle to the bottom.
d) All solids are denser than liquids.
300
Which of the following is not a chemical property of matter? a) Flammability b) Corrosion c) Reactivity with water d) Toxicity e) Conductivity
e) Conductivity
300
3. What does the row (period) of the periodic table tell you about an element? a) The number of valence electrons b) The number of orbitals an element has c) The reactivity of an element d) The density of an element e) The number of bonds an element can form
b) The number of orbitals an element has
300
How many covalent bonds can carbon form? a) 1 b) 2 c) 3 d) 4 e) 5
d) 4
300
Why can carbon exist as graphite, coal and diamond? a) Particles can pack together in different ways to form solids b) Carbon has three different types of particles c) Depending on the direction that the carbon particles are rotating they form different solids d) Carbon particles move at different speeds in the three solids e) Carbon has 4 valence electrons so it can have multiple solids
a) Particles can pack together in different ways to form solids
400
If steel is denser than water, why does a steel hull boat float? a) The propeller on the boat pushes the boat up to keep it from sinking. b) Because the steel is very thin, it is less dense than water. c) The steel is magnetized and repels the water. d) The boat is full of air which is less dense than water. e) Steel hull boats do not float.
d) The boat is full of air which is less dense than water.
400
Which of the following is not a physical property associated with metals? a) Lustre b) Ductility c) Conductivity d) Transparency e) Malleability
d) Transparency
400
How many valence electrons does a halogen have? a) 1 b) 3 c) 5 d) 7 e) 8
d) 7
400
What is the octet rule? a) When atoms form covalent bonds, they try to get 8 electrons in their valence orbital. b) The noble gases do not form covalent bonds because they have 8 valence electrons. c) When drawing a Lewis dot diagram you draw 4 single electrons before you start making pairs. d) There are only 8 elements that can form covalent bonds. e) It is twice as hard to write music for an octet as it is for a quartet.
a) When atoms form covalent bonds, they try to get 8 electrons in their valence orbital.
400
Why does sweating cool you? a) When your body sweats, it excretes water particles that are carrying heat energy. b) When water evaporates, the particles have to gain energy to break their attraction and they take that energy from your body. c) The water on your skin prevents your body from contacting the hot air particles so you stay cool d) It doesn’t, because your skin feels wet, you feel cool e) The water reacts with the oils on your skin to form a new compound and this reaction absorbs energy
b) When water evaporates, the particles have to gain energy to break their attraction and they take that energy from your body.
500
Gold has a density of 19300 kg/m3 and water has a density of 1000 kg/m3. Which of the following statements is true? a) 1 kg of a gold weighs more than 1 kg of water. b) 1 kg of gold occupies more volume than 1 kg of water. c) 1 cm3 of gold weighs more than 1 cm3 of water. d) 1 kg of gold occupies the same volume as 1 kg of water. e) Gold floats in water.
c) 1 cm3 of gold weighs more than 1 cm3 of water.
500
Which of the following physical properties cannot be assessed for a gas? a) Density b) Transparency c) Colour d) Viscosity e) Malleability
e) Malleability
500
5. According to the Bohr-Rutherford model, how many electrons can the first orbital of an atom hold? a) 1 b) 2 c) 4 d) 6 e) 8
b) 2
500
5. Which of the following statements about bonds is false? a) Ionic bonds are formed between metals and non-metals. b) Covalent bonds are formed between non-metals and non-metals. c) In ionic bonds one atom loses electrons and the other gains electrons. d) In covalent bonds both atoms share electrons. e) The strongest covalent bond is a double bond.
e) The strongest covalent bond is a double bond.
500
Consider mercury in its three states: solid, liquid and vapor. Which of the following statements is false? a) The particles in the gas are moving faster than the particles in the solid. b) The particles are closer together in the liquid than the vapor form. c) The force of attraction between particles is weaker in the vapor than in the solid. d) The particles in the solid are the same as the particles in the liquid. e) The solid exists at a lower temperature than the liquid.
c) The force of attraction between particles is weaker in the vapor than in the solid.
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