Classification states of matter

Ethanol has six hydrogen atoms, two carbon atoms, and one oxygen atom. Which is the correct chemical formula of the model below?

C2H6O

When a liquid boils, its particles get ____. This may be due to the ____ in pressure.

Further apart; decrease

In general, nonmetals are ____ since they are composed of individual atoms or small molecules.

Gases at room temperature

What changes are likely to happen to the particles inside a beaker with liquid water as thermal energy is removed?

Get closer, slow down

In general, metals are ____ since they are composed of individual atoms or small molecules.

Good conductors of heat

Aspartame is an artificial sweetener; its formula is C13H16N2O5. What element in the formula has the most number of atoms?

Hydrogen

Juana is creating a lab simulation about the movement of the particles in a nonmetal gas. The user can change the pressure in the gas' temperature and see the effect of the change in the gas' volume. What changes should Juana program to cause the decrease in the gas' volume?

Increase in pressure, decrease in temperature

Vaporization occurs when a _____ a changes into a _____.

Liquid; gas

The forces of attraction between the particles of a matter sample are strong and draw particles together, keeping them in their place. This is an example _____.

Of the solid state of matter

In a chemical formula, the number of each type of atom in the compound is shown with numbers that are ____.

Subscripts

The measure of the average kinetic energy of the particles in a material is ______ , while the result of the motion of all the particles, and the distance and attractions between those particles in the system is ______ energy.

Temperature; thermal

Jocelyn used a balloon to make a model of gas particles. She measured the balloon's diameter at room temperature. Then, she placed the balloon in a freezer. An hour later, she removed the balloon from the freezer and measured the diameter immediately after. Jocelyn made these drawings to show the balloon's diameter at room temperature and immediately after removing it from the freezer. The dotted line represents the size of the balloon before placing it in the freezer.

The ballon expands to a diameter over 10 cm because the gas particles move faster.

A change in the state of matter occurs if enough _____ is added or removed from an object.

Thermal energy

The sum of all the potential energy and kinetic energy of an object equals its _____.

Thermal energy

In a gas, which quantities relate in such a way that when one increases, the other one decreases?

Volume, pressure

In which state of matter there are very weak attractions between particles?

gas