Download 8.P.1.1 Warm-Up Questions for Website

181. Which is classified as a
compound?
A. Salt water
B. Helium gas
C. Sterling silver
D. Sulfur dioxide
182. An element X contains 14 protons,
15 neutrons, and 14 electrons. Which is
MOST LIKELY the same element as
element X?
Element A: 13 protons, 15 neutrons, 14
electrons
B. Element B: 14 protons, 14 neutrons, 14
electrons
C. Element C: 15 protons, 14 neutrons, 15
electrons
A.
183. When a molecule is separated
into its component parts, it forms
Compounds
B. Atoms
C. Protons
D. Ions
A.
184. How can the element carbon
be classified?
Metal
B. Metalloid
C. Nonmetal
A.
185. Which BEST explains how the atomic size of
the elements is arranged in the periodic table?
A. The atomic size of the elements decreases
from left to right and decreases from top to
bottom.
B. The atomic size of the elements increases
from left to right and increases from top to
bottom.
C. The atomic size of the elements decreases
from left to right and increases from top to
bottom.
186. Which term correctly describes all
of the following materials; salt water,
vinegar, bronze, air, and beach sand?
Compounds
B. Mixtures
C. Solutions
D. Elements
A.
187. A group of science students used water, filter
paper, and a hot plate to separate a mixture of salt
and sand. Which did they MOST LIKELY do first?
A.Shake
the mixture until the sand settles on the
bottom.
B.Pour the mixture through filter paper.
C.Heat the mixture on a hot plate.
D.Dissolve the salt by adding water to the mixture.
188. Which is true about a compound?
A.It
is made up of one type of atom.
B.It can be formed through a physical
reaction.
C.It can be changed into simpler substances
through a physical change.
D.It is a pure substance containing elements
that are chemically combined.
189. Which of these is a physical change
that takes place in a garden?
A. Insects eat the leaves of a plant for food.
B. Flowers grow after a summer rain
shower.
C. Earthworms loosen soil as they travel
through it.
D. Leaves convert sunlight to sugar by
photosynthesis.
190. Which best explains how atoms
combine to form compounds?
The atoms in the compound
share electrons.
B. The atoms in the compound
share neutrons.
C. The atoms in the compound
share protons.
A.
191. Which is the best example of a
pure substance?
Peanuts
B. Milk
C. Gold
D. Air
A.
192. Which is a mixture?
Water
B. Salad
C. Table salt
A.
193. Which do elements of the same
vertical column on the periodic table
have in common?
Number of protons
B. Chemical properties
C. Number of neutrons
A.
194. What is the relationship between the
elements with 6, 14, and 82 protons in their
nuclei on the periodic table of elements?
They are in the same group.
B. They are in the same period.
C. They have the same atomic mass.
A.
195. Which does silicon dioxide
represent?
A.Element
B.Compound
C.Homogeneous
mixture
D.Heterogeneous mixture