Classification & Properties of Matter
An unknown gas is colorless, odorless, and tasteless. The gas turns moist iron filings a reddish-brown. It condenses to a liquid at -183 degrees Celsius. Which fact is a chemical property of the gas?
It turns iron reddish-brown
What 3 things could be done to speed up the rate at which a solute dissolves in a solvent?
-Heat It
-Stir It
-Crush up the solute
Acids have a pH in the range of ____ to _____
0 to 6.9
The particles making up a sample of matter move quickly, and the sample has no fixed shape or volume. What is the state of matter of the sample?
gas
Charles' Law tells us that volume and temperature have a __________ relationship
direct
A change of state is which type of change?
Physical
Vinegar is a solution of 2 liquids: water and acetic acid. Most vinegar contains 95% water and 5% acetic acid. In vinegar, acetic acid is the ______
solute
Bases have a pH in the range of _____ to _____
7.1 to 14
As a substance changes from a gas to a liquid, the distance between its molecules _______
decreases
You have a closed container of gas. Heat is added. What will happen to the volume of gas?
The volume will increase
True or False: An egg in a hot pan on a gas burner changing from a liquid to a solid after it cooks is an example of a physical change.
False
If 10 grams of salt is added to 100mL of water at 10 degrees Celsius, how much salt will not dissolve if the saturation point of salt at 10 degrees Celsius is 5 g/100mL?
Bases contain _____ ions
hydroxide
__________ is the phase change from a gas to a solid
Deposition
Boyle's Law tells us that pressure and volume have a ______ relationship
inverse
The densities of 3 immiscible liquid substances are as follows:
Substance A: 1.00g/mL
Substance B: 0.78 g/mL
Substance C: 1.45 g/mL
The 3 liquids are poured into a tall graduated cylinder and allowed to separate into 3 distinct layers. What would be the correct order of the layers?
BAC
What is the solubility of salt at 0 degrees Celsius?
4 grams
Acids contain _______ ions
Hydrogen
Thermal expansion says that most matter ______ when heated
expands
The idea that matter is made up of small particles that are in constant motion is known as __________
the kinetic theory of matter
You have a graduated cylinder with 30 mL of water in it. A solid object with a mass of 63g is placed in the graduated cylinder and the water level rises to 40 mL. What is it's density?
6.3 g/mL
You prepare a mixture of salt, sugar, and water. After stirring the contents, you observe that the salt and sugar have dissolved in the water. Correctly identify the parts of this solution.
Solutes: Salt and Sugar
Solvent: Water
What are the 3 products of a neutralization reaction?
Salt, Water, Gas
Which point on the graph represents the period in which the substance is melting? From _____ to _____
B to C
Heat being added to a gas causes particles to ________, cooling a gas causes particles to ______
Slow Down, Speed Up