Which state of matter undergoes changes in volume most easily?
What is gas?
100
A graph that shows that the volume of a gas is directly proportional to its temperature under constant pressure demonstrates
What is Charles's Law?
100
The force of a gas’s outward push divided by the area of the walls of the container is the gases
What is pressure?
100
Which particles in atoms have a negative electric charge?
What is electrons?
100
Which of these statements about a column of the periodic table is true?
What are the elements have similar properties?
200
A fluid is
What is a substance that flows?
200
The boiling point of a substance is affected by
What is the pressure of the air above the substance?
200
According to Boyle’s law, when the pressure of a gas increases at constant temperature, its volume
What is decreases?
200
What information in the periodic table indicates the number of protons in an atom?
What is the element’s atomic number
200
What natural event provides enough energy for the nuclear fusion reactions that create the heaviest elements?
What is a supernova?
300
In cold climates, the amount of snow on the ground may decrease even if the temperature stays below zero degrees Celsius. The process that best explains this event is
What is sublimation?
300
An uncovered pot of soup is simmering on a stove, and there are water droplets on the wall above the back of the stove. What sequence can you infer has occurred?
What is vaporization, then condensation?
300
The greater the speed of gas particles in a container, the
What is greater the pressure?
300
The elements in a row of the periodic table
What is have properties that change in a pattern?
300
In general, which of the following statements about metals is true?
What is metals show a wide range of chemical properties?
400
Data plotted on a graph results in a line that slopes upward from left to right. This graph tells you that
What is when one variable increases, the other variable increases.
400
The freezing point of water is the same as its
What is melting point?
400
When an inflated balloon is exposed to cold air,
What is the volume of the balloon decreases?
400
In an atom, the number of protons equals the number of
What is electrons?
400
At room temperature, more than half of the nonmetal elements are
What are gases?
500
A graph of Boyle’s law shows the relationship between
What is volume and pressure of a gas?
500
During the process of sublimation,
What is a solid turns directly into a gas?
500
A graph that shows that the pressure of a gas varies inversely with its volume under constant temperature demonstrates
What is Boyle’s law?
500
A material is said to be ductile if it
What is can be pulled out, or drawn, into a long wire?
500
How does nuclear fusion create new elements inside stars?
What is small nuclei combine to form larger nuclei?