Get a clicker please. Semester Exam Review. Please make your selection. The study of matter and the changes in matter best describes the science of Biology Physics Microbiology Chemistry. Please make your selection. Chemistry is a biological science. a physical science.
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Semester Exam Review
The study of matter and the changes in matter best describes the science of
How many valence electrons are in an atom of magnesium?
The branch of chemistry that includes the study of materials and processes that occur in living things is
The study of substances containing carbon is
What is the formula of the ion formed when potassium achieves noble-gas electron configuration?
Basic research is
Which of the following is a heterogeneous mixture?
D) salt water
Matter includes all of the following except
Two features that distinguish matter are
A chemical behavior.
B positions on the periodic table.
C mass numbers.
D atomic numbers.
A 13 m
B 12.68 m
C 12.7 m
D 10 m
B liquid only
C gas only
D both b and c
How many electrons can occupy the s orbital at each energy level?
A. 50 protons, 50 electrons, 75 neutrons
B . 70 neutrons, 75 protons, 50 electrons
C. 120 neutrons, 50 protons, 75 electrons
D. 75 electrons, 50 protons, 50 neutrons
Divide 5.7 m by 2 m. The quotient is correctly reported as
The graph of a direct proportion is a(n)
Argon, krypton, and xenon are
Mendeleev is credited with developing the first successful
Which of the following shows a physical change occurring?
Which element listed is considered to be unreactive (inert) based on its location on the periodic table?
Which of the following observations does not indicate that a chemical
change has occurred?
What is the atomic number of aluminum?
A neutral atom of selenium contains
The most useful source of chemical information about the elements is a
Elements in a group in the periodic table can be expected to have similar
a. Atomic masses
b. Atomic numbers
c. Number of neutrons
A vertical column of blocks in the periodic table is called a(n)
The elements that border the zigzag line in the periodic table are
Which of the following is quantitative?
Quantitative observations are recorded using
A testable statement used for making predictions and carrying out further experiments is a
All but one of these units are SI base units. The exception is the
Barium, atomic number 56, is the fifth element in Group 2. What is the atomic number of radium, the next element in group 2?
The particles in a solid are
Which element has properties most similar to potassium?
Which of the following is qualitative?
The symbol for the metric unit used to measure mass is
The density of aluminum is 2.70 g/cm3. The volume of a solid piece of aluminum is 1.50 cm3. Find its mass.
0.06 cm is the same as
A chemist who frequently carries out a complex experiment is likely to have high
Written in scientific notation, the measurement 0.000 065 mm is
When 64.4 is divided by 2.00, the correct number of significant figures in the result is
The result of dividing 107 by 103 is
Because most particles fired at metal foil passed straight through, Rutherford concluded that
The number of atoms in 1 mole of hydrogen is
Visible light, X rays, infrared radiation, and radio waves all have the same
A mass of 6.005 g of carbon (atomic mass 12.010 amu) contains
The mass of 1 mole of chromium (atomic mass 51.996 amu) is