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Chemistry Assessment
Chemistry Final Assessment
25
Science
7th Grade
12/09/2010

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Cards

Term
H20SO4 is an example of what?
Definition
chemical formula
Term
Are the properties of a compound different or the same as an element?
Definition
different
Term
Give an example of a chemical change.
Definition
Baking, rusting, etc.
Term
What's the difference between a molecule and a compound?
Definition
A compound contains more than one element
Term
What contains only one type of atom?
Definition
element
Term
In a chemical reaction, what is ALWAYS true?
Definition
a new substance is formed
Term
You get home from school and are craving sweets, so you decide to make cookies. Is mixing the ingredients a chemical or physical change?
Definition
physical
Term
You get home from school and are craving sweets, so you decide to make cookies. Is baking the ingredients a chemical or physical change?
Definition
chemical
Term
H2O and N2 are examples of what?
Definition
chemical formulas
Term
Sulfer, Iron and Aluminum are all examples of what?
Definition
elements
Term
What are the small components that make up elements called?
Definition
atoms
Term
What happens to the atoms in a chemical reaction?
Definition
they are rearranged
Term
What could occur during both a chemical and physical change?
Definition
gas is produced
Term
Which are the reactants?
2H2+O2------>2 H2O
Definition
2H2 and O2
Term
Give an example of a physical change.
Definition
ripping paper in half, breaking a pencil, breaking glass, etc.
Term
Which are the products?
2H2+O2------>2 H2O
Definition
2 H2O
Term
Why is water a compound?
Definition
It can be broken down and it is made of more than one type of element
Term
List the element and atoms for H2O
Definition
Hydrogen-2
Oxygen-1
Term
Which chart names all of the elements?
Definition
Periodic Table of Elements
Term
What holds two or more atoms together chemically?
Definition
bond
Term
What kind of substance cannot be broken down?
Definition
element
Term
What are the vertical columns on the periodic table of elements called?
Definition
families
Term
Do gas molecules move faster or slower than liquid molecules?
Definition
faster
Term
What is it called when two or more different substances are not chemically combined?
Definition
mixture
Term
As matter gains heat energy, what happens to the particles within its arrangement?
Definition
the particles move faster
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