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Ap Chemistry 1st Term
Test Description: First term Ap Review game
Instructions: Answer all questions to get your test result.
1) What is the difference between the previous models of the atom and the modern quantum mechanical model?
A
The quantum mechanical model has cookies
B
The quantum mechanical model is based on probability rather than defined orbits.
C
The quantum mechanical model is based on defined orbits rather than probability.
D
The quantum mechanical model allows us to pinpoint the exact location of electrons.
2) An orbital is defined as_____
A
A place where the nucleus is always found.
B
A brand of gum that gives a good clean feeling.
C
A defined distance from the center of the nucleus where the electron will be found.
D
A region of space in which there is a high probability of finding an electron.
3) Carbon–13 and Carbon–14 are considered to be __________ because of the differing number of neutrons.
A
protons
B
elements
C
isotopes
D
atoms
4) Which statement is true about an element when adding or removing protons from the nucleus of an atom?
A
creates an identical element
B
an ion is created
C
an isotope is created
D
creates a different element
5) According to the periodic table, which of the following elements contains more neutrons?
A
Fe
B
Ni
C
Mn
D
Co
6) How many significant figures are there in 0.000 908 000 mL?
A
42
B
6
C
10
D
3
7) Picture two hydrogen atoms. The electron in the first hydrogen atom is in the n=1 level. The electron in the second hydrogen atom is in the n=4 level. Which atom can emit electromagnetic radiation
A
The first atom
B
Neither only superman can emit electromagnetic radiation.
C
Both atoms can
D
The second atom
8) The photon of light that excites an electron
A
Is always red
B
Has less energy than the photon which exits the electron
C
Has more energy than the photon which exits the electron
D
Has the same amount of energy as the photon which exits the electron
9) Which of the following BEST describes the way compounds are formed?
A
atoms of different molecules are bonded together
B
atoms of different elements are bonded together
C
atoms of the same molecules are bonded together
D
atoms of the same elements are bonded together
10) Which of the following elements is not considered one of the six most common elements in living organisms?
A
Phosphorus
B
Sulfer
C
Helium
D
Nitrogen
11) The compound NaCl (table salt) is a solid at room temperature. It is composed of Sodium and Chlorine. Sodium and Chlorine are typically what phase at room temperature?
A
Sodium....Liquid Chlorine....Gas
B
Sodium....Solid Chlorine....Solid
C
Sodium....Gas Chlorine....Gas
D
Sodium....Solid Chlorine.....Gas
12) Definite evidence for a chemical reaction occurring would be a change in __________.
A
density
B
the substances present
C
temperature
D
the state of matter
13) Photosynthesis is the process by which plants use carbon dioxide, water, and energy from the sun to form oxygen and energy–rich sugar molecules. In this reaction, oxygen and energy–rich sugar molecules are the only __________.
A
reactants
B
gases
C
wastes
D
products
14) Generally what is the relationship between first and second ionization energy.
A
First ionization energy is greater than second ionization energy
B
The ionization energies should be equal
C
There is no relationship between energies
D
Second ionization energy is greater than first ionization energy
15) The valence electrons in an atom of Sodium in the ground state are all found in
A
first orbital
B
fourth orbital
C
second orbital
D
third orbital
16) Which of the following statements is true regarding compounds?
A
A compound does not have to resemble the elements it is composed of.
B
Compounds are composed of two or more atoms from the same element.
C
Compounds are the simplest form of an element that retains the properties of the element.
D
Compounds retain the properties of the elements they are composed of.
17) When two different elements react chemically, the products of the reaction will most likely
A
have a mixture of the chemical and physical properties of the original elements.
B
have different chemical and physical properties than the original elements.
C
have a greater total mass than the mass of the original elements.
D
have the same chemical and physical properties as the original elements.
18) What is the molar mass (mass of one mole) of Methane gas CH4?
A
13 grams
B
9 grams
C
16.042 grams
D
13.008 grams
19) What is the molecular weight (molar mass) of Mn2Se7
A
287.6 grams/mol
B
331.3 grams/mol
C
662.6 grams/mol
D
143.8 grams/mol
20) How many moles are in 68 grams of copper (II) hydroxide, Cu(OH)2
A
.70 moles
B
.35 moles
C
1 mole
D
1.4 mole
*select an answer for all questions
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