Elements
What metalloid is found in period 2?
Boron
What is the name of KCl?
Potassium fluroride
An atom that has gained or lost an electron is called a(n) _________________.
ion
Balance the following chemical reaction:
____ H2 + ____ O2 yields ______ H20
2H2 + O2 yields 2H2O
What river flows past Washington DC?
Potomac River
What period metal has two valence electrons?
Calcium
What is the name of NCl3?
Nitrogen Trichloride
Atoms of the same element that have different numbers of neutrons are called _______________.
Isotopes
Balance the following chemical reaction
____CH4 + ____O2 yields ____CO2 + ____ H2O
CH4 + 2O2 yields CO2 + 2H2O
Which of the following is a unit of measurement for air pressure?
gram meter milliliter centigram kilometer
decigram kilopascal mile yard inch
kilopascal
What group 7A element is a liquid at room temperature?
Bromine
What is the name of the acid HCl?
Hydrochloric acid
Two or more atoms bonded together are called
_______________.
molecules
What symbol represents a compound in solution?
(aq)
What river is formed by the joining of two rivers in Pittsburgh, PA? Hint: It is the name of a state.
Ohio
What period 4 transition metal is steel and rust?
Iron
What is the name of Li2CO3?
Lithium Carbonate
A mole atoms is how many atoms?
6.02 x 10e23
What does the symbol (g) represent in a chemical reaction?
gas or gaseous substance
Daily Double: What state is home to the Minute Man, Celtics and a "The shot heard round the world"?
Massachusetts
What period 4 transition metal is found inside pennies?
Zinc
What carbon containing compound in found in your breath, dry ice and soda?
47
What type of chemical reaction is represented below?
A + B yields AB
synthesis
What city was the birthplace of Motown records?