Show:
Empirical and Molecular Formulas
Percent Composition
Types of Reactions
Chemical Equations
Mole Conversions
100
What is the molecular formula for hydrogen peroxide?
H2O2
100
What is the percent of sulfur in MgS? (a) 25.2 % (b) 43.1 % (c) 56.8 % (d) 72.9 %
(c) 56.8 %
100
What is the definition of a synthesis reaction?
A reaction when two substances combine to form one or more products.
100
What are the substances before the arrow in a chemical equation called?
Reactants
100
From which movie does this popular saying come from "Hakuna Matata"?
"The Lion King"
200
What is the empirical formula for glucose?
C6H12O6
200
What is the percent of copper in CuCl2?
47.3 %
200
What are always the products of a combustion reaction?
H2O and CO2 (water and carbon dioxide)
200
How does balancing chemical equations obey the Law of Conservation of Matter?
The Law of Conservation of Matter states that matter can not be created nor destroyed. It just changes form. In a chemical equation, you MUST end up with the same amount of matter you started with in the reaction.
200
How many moles is 126 g of CuO?
1.6 moles
300
Which of these formulas is both a molecular and empirical formula? a.) C4H10 b.) CH4 c.) H2O2 d.) N2O4
b.) CH4
300
What is the percent of hydroxide in NaOH?
42.5 %
300
This latina artist had a set of twins in 2008..
Jennifer Lopez
300
These two actors starred in the popular movies: "Bad Boys" and "Bad Boys II"
Martin Lawrence and Will Smith
300
This movie displayed a tragic event in history that happened at sea almost a century ago..
Titantic
400
A compound has an empirical formula of CH and a molecular mass of 78 amu. What is the molecular formula of the compound? (a) C2H2 (b) C3H3 (c) C4H4 (d) C6H6
(d) C6H6
400
What is the percent of oxygen in sodium oxide?
Sodium Oxide - Na2O 25.8 %
400
The mother of this artist tragically died during a plastic surgery procedure in 2007...
Kanye West
400
This actor played the voice of "Donkey" in the animated movie "Shrek"...
Eddie Murphy
400
In this movie, Chris Rock posed as a dead white rich man...
"Down to Earth"
500
Vitamin C has an empirical formula of C3H4O3 and a molecular mass of 176 amu. What is its molecular formula?
C6H8O6
500
What is the percent of water in the hydrate: BaCl2 x 2H2O ? I WILL DRAW THIS ON THE BOARD!!!
14.8 %
500
The mother, brother and nephew of this artist was killed by her sister's jealous boyfriend in 2008...
Jennifer Hudson
500
This actor was the first female black woman to win an Oscar for a leading role in 2002...
Halle Berry
500
"I will look for you. I will find you, and I will kill you." From which movie were these lines taken from?
"Taken"