Classification of Matter
Matter can be classified as one of these two things.
What is a pure substance or a mixture?
This is what the arrow in a chemical reactions means.
What is "yields" or "produces"?
These are the 3 subatomic particles.
What are protons, neutrons, and electrons?
The mass of the products is equal to the mass of the reactants.
What is the Law of Conservation of Mass?
The number at the top of an atomic square.
What is the atomic number?
NaCl and NaHCO3 are examples of this.
What is a compound?
The number shown in this example (Na2) is called this.
What is a subscript?
The electrons in the outermost shell.
What are valence electrons?
In this system, all the matter stays inside.
What is a closed system?
Anything that has mass and takes up space (has volume)
What is matter?
This type of property can be observed.
What is a physical property?
Formation of a gas, formation of a precipitate, heat and/or light produced, or color change.
What are indicators of a chemical reaction/change?
This is what the rows on the periodic table are called.
What is a period?
The mass of the products is less than the original mass of the reactants because this is given off.
What is a gas?
Is equal to mass/volume.
What is density?
Trail mix, chocolate chip cookies, and pizza are examples of this type of mixture.
What is heterogeneous?
When a chemical reaction is written using symbols and chemical formulas.
What is a chemical equation?
This is what the "stair steps" on the periodic table are classified as.
What is a metalloid?
He is considered the father of modern chemistry. (First and last name must be given)
Who is Antoine Lavoisier?
This is another word for "basic" on the pH scale.
What is alkaline?
Phenolphthalein, Bromothymol Blue, and Litmus paper are types of this.
What is an indicator?
This kind of reaction absorbs energy.
What is endothermic?
The elements in Group 2 are called this.
What is Alkaline Earth Metals?
These are the 2 elements that Lavoisier named.
What are Hydrogen and Oxygen?
The process in which a substance reacts with oxygen
What is oxidation?