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A measure of the amount of matter the object contains.
What is Mass?
an observable or measurable condition of a substance that doesn’t require changing the substance’s composition
(ex. Hardness, color, conductivity, malleability)
What is a Physical Property?
an observable or measurable condition of a substance that does change the substance’s composition
(ex. flammability, reactivity, toxicity, acidity/alkalinity)
What is a Chemical Property?
A measure of the space occupied by the object.
What is Volume?
When a chemical reaction takes place, this is the name for what comes out of that reaction.
What is a/the Product?
A phase of matter that has a definite shape and volume.
What is a Solid?
When a chemical reaction takes place, this is the name for what goes into the reaction.
What is a/the reactants?
A phase of matter that has an indefinite shape and volume.
What is a Gas?
This is the simplest form of matter that has a unique set of properties.
What is an Element?
A phase of matter that has an indefinite shape and a definite volume.
What is a liquid?
This type of mixture is not uniform throughout.
What is a Heterogeneous Mixture?
A substance that contains two or more elements chemically combined in a fixed proportion.
What is a compound?
This type of mixture is uniform throughout.
What is a homogeneous mixture?
Plasma isn't discussed often because it is an ionized version of this state of matter.
What is Gas?
This says that in any physical or chemical reaction, mass is conserved.
What is the Law of Conservation of Mass?
Dissolving sugar in water is an example of this.
What is a Physical Change?
an observable or measurable change in condition of a substance that doesn’t require changing the substance’s composition
(ex. cutting, evaporating, breaking)
What is a Physical Change?
an observable or measurable change in condition of a substance that does change the substance’s composition
(ex. Burning, rotting, rusting)
What is a Chemical Change?
Baking a cake is an example of this.
What is a Chemical Change?
A marshmallow is an example of this.
What is a homogeneous mixture?
The gaseous state of a substance that is usually a liquid or solid at room temperature.
What is a Vapor?
A method of separating a liquid from a liquid, by using their different chemical properties.
What is Distillation?
This is the name for a phase change in which a solid goes directly to a gas, instead of becoming a liquid first.
(ex. Dry Ice)
What is Sublimation?
There are 4 main clues that a chemical reaction is taking place. Name at least 2 of the 4 clues.
What is......?
a transfer of energy, a change in color, the production of a gas, and/or the formation of a precipitate
A method of separating solids from liquids in a mixture.
(ex. Coffee)
What is Filtration?