Describe how you would measure the volume of a regular object, for example, a box.
L x W x H
A substance has a density of 1.50 g/mL and a mass of 76 g, what is its volume?
51 mL
Classify the following matter: Sugar
Eelement
Heterogeneous Mixture
Compound
Homogeneous Mixture
Classify the following matter: Brass
Heterogeneous Mixture
Homogeneous Mixture
Compound
Element
If you heat up a substance, such as a gas, its volume will increase, what will happen to the density?
The density of the substance would decrease.
Describe the difference between a homogeneous mixture and a heterogenous mixture.
A homogeneous mixture is uniform throughout, while a heterogeneous mixture is different throughtout
All phase changes, such as boiling, condensing, melting, freezing, evaporating etc. are classified as
Physical Changes
Chemical Changes
Describe density.
Density is described as the amount of matter (mass) in a certain volume
If the matter can be physically separated it is classified as this
Mixture
A substance has a mass of 25.0 g and a volume of 32.25 mL, what is the substance's density?
.775 g/mL
Describe the difference between a Physical and Chemical PROPERTY
A physical property can be observed WITHOUT altering the substance, while a chemical property is observed during a chemical reaction
Soil
Pure Substance
Mixture
Which of the following is NOT a chemical change?
Boiling
Rusting
Combusting
Baking
Water
Mixture
Pure Substance
Salt
Mixture
Pure Substance
Classify the following matter: Salt Water
Heterogeneous Mixture
Compound
Element
Homogeneous Mixture
Oxygen
Mixture
Pure Substance
A substance has a density of 1.25 g/mL and a volume of 34 mL, what is its mass?
43 g
Air
Pure Substance
Mixture
State the Law of Conservation of Matter
Matter can neither be created nor destroyed, only transformed
If you cool down a substance, such as a gas, its volume will decrease, what will happen to the density?
The density of the substance will increase.
A substance has a volume of 224 mL and a mass of 10.15 g, what is the substance's density?
.045 g/mL
Which of the following is NOT a chemical property?
Combustibility
Conductivity
Flammability
Toxicity
Describe the difference between a Physical and Chemical CHANGE
A physical change is a change in matter that does NOT alter the chemical composition of the substance, while a chemical change results in a NEW substance
List 3 Extensive Properties
Mass, Volume, Energy
Classify the following matter: Chocolate Chip Cookies
Compound
Homogeneous Mixture
Heterogeneous Mixture
Element
Classify the following matter: Aluminum
Homogeneous Mixture
Heterogeneous Mixture
Compound
Element
Steel
Mixture
Pure Substance
Describe the difference between an element and a compound.
An element is matter that can not be chemically separated any more, a compound is two or more elements bonded together
Concrete
Pure Substance
Mixture
Classify the following matter: Salad Dressing
Heterogeneous Mixture
Compound
Element
Homogeneous Mixture
Classify the following matter: Air
Element
Homogeneous Mixture
Compound
Heterogeneous Mixture
Mixtures involving a solute and solvent are special homogeneous mixtures called
Solutions
Describe how you would measure the volume of an irregular object.
Describe the process of water displacement
What is the difference between a pure substance and a mixture?
A mixture can be separated by physical means while a pure substance cannot.
What is the formula for calculating density?
d = m/v
Describe the difference between Intensive and Extensive Properties
Intensive properties depend on the type of matter in a sample, while Extensive properties depend on the amount of matter in the sample
Mixture of metals are special homogeneous mixtures called
Alloys
Classify the following matter: Coffee
Homogeneous Mixtures
Element
Heterogeneous Mixtures
Compound
All of the following are signs that a chemical reactions took place, EXCEPT
Change in State of Matter
Change in Color
Change in Temperature
Change in Odor
What is the formula for calculating volume, given the density and mass?
v = m/d
Baking Soda
Mixture
Pure Substance
Which of the following is NOT a physical property?
Luster
Reactivity
Melting Point
Freezing Point
List 3 Intensive Properties
Any 3 Intensive Properties will be accepted
What is the formula for mass, given the density and the volume?
m = d x v
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