Vocabulary
A combination of two or more substances that are not chemically combined
What is a mixture?
A characteristic of a substance that can be observed or measured without changing its chemical composition
What is the definition of Physical Property?
4.67g / 32.8mL. Find Density and say if it sinks or floats.
0.14g/mL. The object floats.
Does not have a fixed shape or volume
What is a Gas?
All components in the mixture are uniform throughout
What is a homogeneous mixture?
Has a fixed shape and volume
What is the definition of a Solid?
1.74g/mL X 63mL. Find the mass.
109.62g
When measuring the Volume of a solid object, what unit is it usually expressed in?
In cubic centimeters.
A substance that cannot be separated or broken down into simpler substances by chemical means
What is an element?
A characteristic of a substance that describes how the substance reacts to a chemical reaction.
Ex. flammability, toxicity, reactivity
What is the definition of a chemical property?
22.95g / 15.45cm3. Find density. Say if it sinks or floats.
1.49g/cm3. The object sinks.
When a substance changes from one state of matter to another without changing its chemical composition
Ex. melting, freezing, boiling
What is a Phase Change?
The temperature at which a liquid and solid are in equilibrium at 1 atm in pressure; the temperature at which a liquid freezes
What is the Freezing point?
An object has the Mass of 45.87 g and the Volume of 21.42 mL. Find the Density.
2.1414 g/mL
Fixed volume, no definite shape because it takes the shape of its container.
What is a Liquid?
An object has the Density of 4.67 g/mL and Volume of 3.91 mL. What is the Mass?
18.2597 g.
An object has the Mass of 12.36 g and the Density of 6.52 g/ml. What is the Volume?
1.8957055 mL
97kg / 105L. Find the density. Say if it sinks or floats.
0.92. This object floats.
What kind of property of an object is the Mass?
( Chemical or Physical)
A physical property.