A substance that cannot be broken down into a simpler form by ordinary chemical means is called a(n)
A. element
B. compound
C. mixture
D. isotope
What is an element?
100
Name the compound:
H20
What is Water
100
A molecule is the smallest complete unit of
A. an atom
B. an element
C. a compound
D. a nucleus
What is a compound?
100
The written notation used to represent the number of atoms of each element in a compound is called the
A. periodic table
B. chemical formula
C. electron configuration
D. valence number
What is a chemical formula?
100
The particle in the nucleus with no electrical charge.
What is a neutron?
200
Each vertical column on the Periodic Table is called a(n)
What is a group?
200
Name the compound:
C8H18
What is gasoline?
200
A mixture in which one substance is uniformly distributed in another substance is called a(n)
A. metal
B. quark
C. isotope
D. solution
What is a solution?
200
The name of this structure is called
(Look at the board)
What is the Lewis Dot Structure?
200
The number of electrons in the first four energy levels.
What is 2, 8, 8, 18?
300
The element has the atomic number 79
What is gold?
300
Name the compound:
NaHCO3
What is Baking Soda?
300
Molecules are made up of :
a. compounds
b. solutions
c. atoms
What is atoms?
300
The number of atoms represented in the formula for chocolate
C7H8N4O2
What is 21 atoms?
300
Who had the idea that everything on the earth was made of basic elements?
Who is the Greek?
400
The atomic number and the atomic mass are the same number
a. True
b. False
What is false?
400
Name the compound:
C10H7O
What is peppermint?
400
Which of the following is NOT a mixture
a. trail mix
b. cake batter
c. confetti
What is cake batter?
400
The chemical formula for salt.
What is NaCl?
400
New substances are always formed when matter undergoes a:
What is a chemical change?
500
Most of the elements on the Periodic Table are metals.
a. True
b. False
What is true?
500
Name the compound:
C8H10N4O2
What is caffeine?
500
The process that takes place when a solvent is mixed with a solute to make a solution is known as
What is dissolving?
500
List all of the elements in the chemical formula for Pepsi based on the elements' symbols below:
H2CO3 + C18H9N Na2O8S2
What is Hydrogen, carbon, oxygen, nitrogen, sodium, and sulfur?
500
The man who discovered Neon
Who is Sir William Ramsay and William Morris Travers?