Chemistry Fall Semester Review - Part 1 Question Preview (ID: 22892)


This Review Contains Questions On: Phys/Chem Properties/Changes Specific Heat Problems Electron Configuration Atomic Model EM Radiation You Will Need Your Periodic Table/ion Sheet, Calculator, And Formula Sheet. TEACHERS: click here for quick copy question ID numbers.

Physical properties are:
a) Those that a substance displays only through changing its composition.
b) Those that cause atoms and molecules to change.
c) Those that a substance displays without changing its composition.
d) Identical for all solid matter.

Which of the following items is a physical items is a physical property?
a) The corrosive action of acid rain on granite.
b) The odor of spearmint gum.
c) The combustion of gasoline.
d) The tarnishing of a copper statue.

Which of the following items is a chemical property?
a) The paint color on a new red corvette.
b) The mass of a substance
c) The melting and boiling point
d) The tarnishing of a copper statue.

If you hold a solid piece of pure gallium metal in your hand, your body heat will melt the gallium into its liquid. This illustrates which of the following?
a) physical property
b) physical change
c) chemical property
d) chemical change

Which type of energy is associated with motion?
a) chemical
b) electrical
c) potential
d) kinetic

Which type of energy is associated with position?
a) chemical
b) electrical
c) potential
d) kinetic

A 15.0 gram lead ball at 25.0 °C was heat with 40.5 joules of heat. Given the specific heat of lead is 0.128 J/g⋅°C, what is the final temperature of the lead?
a) 21.1
b) 46.1
c) 77.8
d) 0.844

What is the specific heat (J/g⋅°C) of a metal object whose temperature increases by 3.0°C when 17.5 g of metal was heated with 38.5J?
a) 4.18
b) 0.15
c) 0.73
d) 1.4

If the same amount of heat is added to 50.0 g samples of each of the following metals, which metal will reach the highest temperature? They are start at the same initial temperature.
a) Aluminum – specific heat of 0.903
b) Copper – specific heat of 0.385
c) Gold – specific heat of 0.128
d) Silver – specific heat of 0.235

Which of the statements about the discovery of electrons is FALSE?
a) Atoms are neutral, the existence of a negatively charged particle implied there must be positively charged center of the atom
b) Thomson proposed that electrons were small particles held within a positively charged sphere
c) Rutherford proved the plum-pudding model correct.
d) The negatively charged electron is located outside the nucleus

Carbon is a neutral atom that contains 6 electrons. How many protons will it have?
a) 12
b) 0
c) 3
d) 6

Which element has the electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p1?
a) In
b) Ga
c) Tl
d) Ge

Which of the following elements has the electron configuration of 3s2 3p4 in its outermost shell?
a) Al
b) S
c) Si
d) Cl

Iron has ________ electrons in the third energy level?
a) 14
b) 13
c) 15
d) 8

Which of the following statements about light is FALSE?
a) Light is not a form of matter
b) Light is a type of energy
c) Light behaves as both a particle and a wave
d) All of the answers are true

How are wavelengths and frequency of light related?
a) Wavelength is double the frequency
b) Wavelength increases as frequency increases
c) Wavelength increases as frequency decreases
d) Wavelength is independent of frequency

Which form of electromagnetic radiation has the shortest wavelength?
a) Radio waves
b) Microwaves
c) X-rays
d) Gamma Rays

Which form of electromagnetic radiation has the lowest frequency?
a) Radio waves
b) Microwaves
c) Visible Light
d) Infrared

Which of the following has the least energy?
a) Gamma Rays
b) X-rays
c) Infrared
d) Microwaves

Which of the following statements about Shrodinger’s quantum-mechanical model is TRUE?
a) Electron paths can be described exactly
b) An atom consists of a nucleus containing protons and neutrons along with electron cloud.
c) Orbitals are specific paths electrons follow
d) The majority of the mass of an atom is due to its electrons.

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