Terms
The study of matter and the changes it undergoes.
What is Chemistry?
Substances that are composed of fixed amounts, and cannot be separated by physical means.
What are pure substances?
Can be measured without changing the identity of the substance.
What is a physical property?
What are physical changes?
In any physical or chemical change, matter cannot be created or destroyed.
What is the Law of Conservation of Mass?
Anything with mass and volume.
What is Matter?
Are two or more substances physically mixed together; no definite composition.
What are mixtures?
What is a Chemical Property?
Changes that cause the beginning substance to have different chemical and physical properties than the end substance.
What are Chemical Changes?
Are the 'ingredients' of a reaction.
What are reactants?
The amount of matter in an object.
What is Mass?
Doesn't have a uniform composition; parts of the mixture can be physically picked out.
What are heterogeneous mixtures?
Properties that include colour change, flammability, radioactivity, reactivity, combustibility.
What are examples of chemical properties?
Changes that includes breaking, boiling, ripping.
What are examples of physical changes?
Are the 'end' of a reaction.
What are products?
The force of gravity acting on an object's mass.
What is Weight?
Have a uniform composition; parts cannot be physically picked out.
What are Homogeneous Mixtures?
Properties that include color, odor, texture, taste.
What are examples of physical properties?
Changes that include rusting, burning, corrosion, digestion, decaying, respiration.
What are examples of chemical changes?
Is the word that is represented by the arrow in a chemical formula.
What is 'yields'?
Fourth state of matter. Is ionized gas consisting of positive ions and free electrons.
What is plasma?
Has the properties of a liquid and a solid. Example: oobleck.
What is a non-Newtonian fluid?
Property that tells us that an orange will float in water.
What are the physical properties of an orange?
Changes that include phase changes such as boiling, freezing, subliming, condensing.
What are examples of physical changes?
Is your favorite class.
What is chemistry?