Categories of Matter
Provide an example of a pure substance compound
water, salt, rust
Which pure substance is made up of only one type of atom?
Element
The 3 states of matter are--
solids, liquids, gases
What phase change goes from a solid to a liquid
Melting
What are the 3 basic particles that make an atom
Protons, Neutrons, Electrons
How many elements (unique substances) are on the periodic table?
118
Which mixture is when the parts are evenly distributed so nothing can be separated
Homogeneous
When vinegar and baking soda are combined, bubbles begin to form. This is evidence of a chemical reaction because the bubbles –
A. pop up when they are touched.
B. show that gas is forming.
C. form at a fast rate.
D. are generally transparent.
B
Which state of matter has definite shape and volume
Solid
Which phase change goes from a liquid to a solid?
Freezing
Which particle is positively charged?
Protons
How many valence electrons makes a happy atom?
8
Provide an example of a heterogeneous mixture
chex mix, bowl of m & m's
Provide an example of a pure substance element
gold, nickel, oxygen
Anything that has mass and takes up space
Matter
What phase change goes from liquid to gas
Evaporation/Boiling
Which particle occupies the space outside the nucleus of an atom--is negatively charged
Electrons
Where are metals and nonmetals found on the periodic table?
Metals on the left
Nonmetals on the right
Provide an example of a homogeneous mixture
orange juice without pulp, chocolate milk
Which pure substance is made up of 2 or more different elements?
Compound
Name 2 properties of matter
shape, volume, mass
Give an example of solution
Tang
Which particle is neutral--no electric charge
Neutrons
All _________ are __________ but not all _________ are _____________.
Rewrite the whole sentence.
All compounds are molecules, but not all molecules are compounds.
Which mixture is when the parts are not evenly distributed & can be separated
Heterogeneous
A category of matter: Occurs naturally; exists in its most basic or purest form & can't be broken down further: Examples: Elements & Compounds
Pure Substance
Which property talks about the amount of space an object takes up?
Volume
Respiration gives off what kind of gas?
Carbon Dioxide
Where do the electrons live in the atoms?
orbital
Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, Sulfur