Vocabulary
What is Product?
A substance produced by a chemical reaction
What is Chemical property?
A characteristic of matter that can be observed as it changes to a different types of matter
What is a Chemical reaction
A process in which atoms of one or more substances rearrange to form one or more new substances
What are 6 indicators of chemical reaction?
1.Gas produced
2.Odor Change
3.Temperature Change
4.Light produced
5.New substance formed 6. Color
pH scale..What does acidic mean?
Substance has a pH less than 7
What is Physical property
A characteristic of matter that can be observed or measured with out changing the identity of the matter
What is Reactants/Reactivity?
Occurs when a substance reacts with another substance, changing it into a new substance
What is Substance
Matter with a composition that is always the same
What is the main difference between a physical and chemical change?
The substance changes its form or appearance, but no new substance is made
What is an element?
A pure substance that can't be broken down
What is Chemical property
A characteristic of matter that can be observed as it changes to a different type of matter
What is pH?
The pH is a number that measures how acidic or basic (alkaline) a liquid is . pH stands for potential of hydrogen
What is Volume?
The amount of space a substance takes u[
What is the significance of hydrogen ions in relationship to the pH scale?
More hydroxide- more acidic
What is flammability?
a substance has the ability to burn when heated
What is Flammability?
The ability of a type of matter to burn easily
What are Atoms?
A small particle that is the building block of matter
What is Mass?
The amount of matter in a object
What is the significance of hydroxide ions in relationship to the pH scale?
-More hydrogen ions
What is reactivity?
How easily a substance combines chemically with other materials
What is Oxidation?
Occurs when a substance react with oxidizing
What are Molecules?
Two or more atoms that are held together by covalent bonds* and act as a unit
pH scale.. What does basic mean?
Substance has a pH greater than 7
What is toxicity?
The degree to which a substance combines chemically with other materials.