Vocab
This is the study of matter.
What is chemistry?
This substance has a definite shape and define volume.
What is a soild?
This results in a new substance and is permanently changed
What is a Chemical change?
This is 12,345.6 km written in scientific notation.
What is 1.23456 x 104 kg?
A pure substance that CANNOT be broken down chemically
What are elements?
A combination of 2 things in uniform composition
What is a solution/homogeneous mixture?
The repeatability of a measurement during a given experiment.
anything that has mass and takes up space
What is matter?
This has no definite shape, but does have a definite volume
What is a Liquid?
A change in matter that involves a change in a physical property but doesn't create a new substance
What is Physical change?
This is the number of significant figures in 0.023010 g.
What is 4?
Aluminum, iron, carbon, neon, and calcium are examples of what
What are elements?
Koolaid, steel, brass, air, and milk are examples of this.
What is a solution/homogeneous mixture?
The ability to find an experimental measurement close to the predicted measurement.
the amount of space an object takes up
What is volume?
Atoms packed closely together in this state and they have high density
What is a solid?
A property that can be observed only by performing a chemical change
What is a chemical property?
45 millimeters in meters (in scientific notation)
What is 4.5 x 10-2 m?
Draw a particle diagram representing an element
Should be all of the same atoms
This type of mixture is different throughout. Fruit salad and granite are examples of this.
What is a heterogeneous mixture?
This is the variable changed or manipulated in an experiment.
What is the independent variable?
the amount of matter something has
What is mass?
state of matter that is compressible
What is a gas?
A phase change is this type of change
What are physical changes?
A 10.0 cm3 sample of copper has a mass of 89.6 g. What is the density of copper?
What is D = 8.96 g/cm3?
Draw a particle diagram of a compound
This type of mixture is easy to separate back into its original components.
What is heterogeneous?
This is an untreated sample within an experiment for comparison against the treated samples.
What is a control?
This is the relationship between mass and volume.
What is density?
When heat is added to a solid, it becomes this state of matter
What is a liquid?
Flammability and reactivity are examples of this
What is chemical properties?
A sample of iron has the same dimensions of 2 cm x 3 cm x 2 cm. If the mass of this rectangular-shaped object is 94 g, what is the density of iron?
What is D = 7.83 g/cm3?
H20 (water) and CO2 (carbon dioxide) are examples of this as they are made up of different elements bonded together.
What is a compound?
This type of mixture is more difficult to separate because you cannot see the individual pieces.
What is homogeneous?
This is the variable that responds to the treatment of samples within an experiment.