States Of Matter
Gas Laws
Chemical Reactions
Atomic Structure
Periodic Table
100
What are the 3 states of matter?

Solid, Liquid, and Gas.

100

An alternate way to state Avogadro’s law is “All other things being equal, the number of molecules in a gas is directly proportional to the volume of the gas.” What is the meaning of the term “directly proportional?”

The number of particles in the gas increases as the volume increases.

100

List 5 different chemical reactions that may occur.

Answers may vary. To be checked in person.
100

What is the smallest part of an atom?

The smallest part of an atom is called a "particle" or an "electron.

100

What is the name of the chart that organizes all the known elements?

The chart that organizes all the known elements is called the "periodic table."

200

What happens to the motion of the particles at this “absolute zero” temperature?

Particles become completely still.

200

If the temperature of a fixed amount of a gas is doubled at constant volume, what happens to the pressure?

Temperature and Pressure are directly proportional. Pressure will also have to increase (doubling).


200

What are 5 common chemical reactions?

combination, decomposition, single-replacement, double-replacement, and combustion

200

What is the nucleus of an atom made of?

The nucleus of an atom is made of "protons" and "neutrons."

200

How are elements arranged on the periodic table?

Elements are arranged on the periodic table in order of increasing atomic number.

300

What is the point called when all 3 states of matter can be observed?

Triple Point.

300

Sometimes leaving a bicycle in the sun on a hot day will cause a blowout. Why?

As the temperature of a gas rises, so does the pressure according to the ideal gas law. The tire's volume can only stretch so far before the rubber reaches its limit and releases the accumulated pressure.

300

What are the reactants of a hydrocarbon combustion reaction?

hydrocarbons and oxygen.

300

What is the charge of a proton, and where is it located in an atom?

A proton has a positive charge, and it is located in the nucleus of an atom.

300

What information does each square on the periodic table provide about an element?

Each square on the periodic table provides information about an element's atomic number, chemical symbol, name, and atomic mass.

400

What is the value used to measure heat associated with phase changes?

ΔH (Enthalpy H)

400

A weather balloon contains 8.80 moles of helium at a pressure of 0.992 atm and a temperature of 25 °C at ground level. What is the volume of the balloon under these conditions?

217 L

400

How are endothermic and exothermic reactions similar? How are they different?

Both have to do with energy but one takes in energy and uses it while the other produces energy

400

How do electrons move around the nucleus in an atom?

Electrons move around the nucleus in specific "energy levels" or "shells" like planets orbiting around the sun.

400

What do groups (or columns) on the periodic table have in common?

Elements in the same group (or column) on the periodic table have similar chemical properties because they have the same number of electrons in their outermost energy level.

500

How are sublimation and deposition different?

Sublimation is the change from solid to gas without passing through the liquid state, and deposition is the change from gas to solid.

500

What is the temperature of an 11.2-L sample of carbon monoxide, CO, at 744 torr if it occupies 13.3 L at 55 °C and 744 torr?

276°K or 3°C


500

What does the subscript "2" in H2O tell you about the molecule

It means how many atoms of that element are for example h2= 2 hydrogen

500

What determines the identity of an atom?

The number of protons in the nucleus, called the "atomic number," determines the identity of an atom.


500

What determines an element's placement on the periodic table?

An element's placement on the periodic table is determined by its atomic number and its properties, such as its chemical behavior and physical characteristics.

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