Measurement
Properties of Matter
Elements and the Periodic Table
Atoms and Molecules
Chemical Reactions
100
the number of millimeters in one centimeter
What is ten?
100
flammability and reactivity with other substances are these types of properties
What is chemical?
100
element number two on the periodic table
What is helium?
100
the small numbers (subscripts) in a chemical formula represent this
What is the number of atoms of an element in the formula?
100
three things that would be considered evidence of a chemical reaction
What is a new substance forming, heat being produced, gas being given off, light being given off or odor being produced?
200
the number of centimeters in 2 meters
What is 200?
200
the amount of space that a substance takes up
What is volume?
200
xenon, argon and helium are know as these kinds of gases
What are noble gases?
200
two or more substances that are chemically combined
What is a compound?
200
the substances that you start with in a chemical reaction
What are reactants?
300
the number of grams in a kilogram
What is 1000?
300
the equation for finding density
What is density = mass/volume
300
as you move down the column or family in the periodic table, this happens to the number of shells or orbitals
What is increases by one?
300
the Bohr model of an atom shows this
What is all electrons shells and all electrons in an atom of the element
300
the substances that you end up with in a chemical reaction
What are products?
400
the number of millimeters in 3 meters
What is 3000?
400
weight is different from mass because of this force that acts on a mass
What is gravity?
400
element discovered by Marie and Pierre Curie
What is radium?
400
the Lewis structure shows this
What is the symbol as well as valence electrons
400
type of reaction that produces carbon dioxide and water
What is combustion?
500
1 milliliter is equal to a cubic one of these
What is a centimeter?
500
phase of matter with very high energy and very high temperature
What is plasma?
500
the valuable element that alchemists thought they could create
What is gold?
500
the symbol for gold
What is Au?
500
any combustion reaction is also this type of reaction
What is exothermic?
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