States of matter
In which state of matter do particles stay close together, yet can slide past each other?
A. Solid
B. Liquid
C. Gas
D.
B. Liquid
Shape, texture, color, and density are some examples of ________.
A. Chemical properties of substances
B. Physical properties of substances
C. Both chemical and physical properties of substances
D. Neither chemical and physical properties of substances
B. Physical properties of substances
Which of the following is FALSE about this Sulfuric Acid formula?
2H2SO4
A. There are 2 molecules of sulfuric acid
B. There are 4 hydrogen atoms in total
C. There are 3 different elements present
D. There are 4 oxygen atoms in total
D. There are 4 oxygen atoms in total
Elements within the same main groups (columns) _____. *
A. Have the same number of protons
B. Have the same number of isotopes
C. Have the same number of electron shells
D. Have the same number of valence electrons
D. Have the same number of valence electrons
Which statement about water is NOT true?
a. Water is needed for life
b. Water is able to stick to itself
c. Water molecules are not polar
d. Water molecules can dissolve things well
c. Water molecules are not polar
Particles of the "solid" state of matter can be classified as _____.
A. Low temperature and low energy
B. Low temperature and high energy
C. High temperature and high energy
A. Low temperature and low energy
What is the difference between a physical change and a chemical change? Choose TWO answers
A. In a physical change, no new substances are created. In a chemical change, new substances result from change.
B. In a physical change, new substances are created.. In a chemical change, no new substances are created
C. Physical changes affect the chemical composition of a substance, chemical changes do not.
D. Chemical changes affect the chemical composition of a substance, physical changes do not.
A. In a physical change, no new substances are created. In a chemical change, new substances result from change.
D. Chemical changes affect the chemical composition of a substance, physical changes do not.
In a neutral atom, the number of protons is also equal to the number of ____.
A. Nuclei
B. Neutrons
C. Electrons
D. Isotopes
C. Electrons
Which element has the largest atomic radius? *
A. Al (Aluminium)
B. Ca (Calcium)
C. Cs (Caesium)
D. O (Oxygen)
C. Cs (Caesium)
Water forms as the result of shared electrons called a/n _____.
A. Ionic bond
B. Polar covalent bond
C. Sulfur bond
D. Metallic bond
B. Polar covalent bond
According to the kinetic molecular theory, particles of matter ____.
A. Are in constant motion
B. Always have a fixed volume
C. Have different colors
A. Are in constant motion
In a car engine, fuel is burned which produces a gas called carbon dioxide. This is an example of a...
A. Physical change, because a new substance is formed from a chemical reaction
B. Physical change, because composition of the matter was not changed
C. Chemical change, because a new substance is formed from a chemical reaction
D. Chemical change, because only the state of matter changed.
C. Chemical change, because a new substance is formed from a chemical reaction
The atomic number of an element is based on the ____.
A. Mass of its nucleus
B. Number of protons in the nucleus
C. Number of neutrons in the nucleus
D. Number of electrons in the electron cloud
B. Number of protons in the nucleus
Which types of elements are ductile and malleable and likely to lose electrons in ionic bonds? *
A. Metals
B. Nonmetals
C. Ions
D. Isotopes
A. Metals
Ice floats because _____. *
A. As water freezes, it expands and becomes less dense than liquid water
B. As water freezes, air becomes trapped between the hydrogen bonds of water molecules
C. As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
D. As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.
A. As water freezes, it expands and becomes less dense than liquid water
Rank the states of matter from slowest to fastest particle speed
A. Gas, solid, liquid
B. Gas, liquid, solid
C. Solid, liquid, gas
C. Solid, liquid, gas
Cooking pancakes from batter is an example of
A. Physical Change
B. Chemical Change
B. Chemical Change
Carbon 12 have an atomic mass of 12 AMU and Carbon 14, an isotope, has an AMU of 14. What is the difference between these atoms?
A. Carbon 14 has more protons than Carbon 12
B. Carbon 14 has more electrons than Carbon 12
C. Carbon 14 has more neutrons than Carbon 12
D. Carbon 14 has more electron shells than Carbon 12
C. Carbon 14 has more neutrons than Carbon 12
Which element is the most electronegative (holds on to electrons)?
A. Bi (Bismuth)
B. Ca (Calcium)
C. Na (Sodium)
D. F (Fluorine)
D. F (Fluorine)
What type of bonds are responsible for the properties of water that make it essential for living organisms?
A. Hydrogen bonds
B. Oxygen bonds
C. Ionic bonds
D. Metallic bonds
A. Hydrogen bonds
The average kinetic energy of particles can be measured with _____.
A. Mass
B. Volume
C. Temperature
C. Temperature
Melting butter from solid to liquid
A. Physical Change
B. Chemical Change
A. Physical Change
When Calcium loses 2 electrons the chemical formula can be written as ____.
A. Ca+2
B. Ca-2
C. Ca-2
D. Ca+2
A. Ca+2
Elements on the periodic table are arranged _____. *
A. Alphabetically
B. By date of discovery
C. By increasing atomic number
D. By amount in the environment
C. By increasing atomic number
Water is sometimes referred to as a "universal solvent" because it is _____. *
A. Odorless
B. Colorless
C. Nonpolar
D. Good at dissolving polar and ionic compounds
D. Good at dissolving polar and ionic compounds