Reactions
In which type of reaction is there one compound reactant and one element reactant?
A. Synthesis
B. Decomposition
C. Single Replacement
D. Double Replacement
Single replacement
Fluorine is diatomic. What is the molar mass of fluorine gas?
A. 9 g/mol
B. 38.00 g/mol
C. 18 g/mol
D. 19.00 g/mol
38.00 g/mol
The second law of thermodynamics states that in a closed system entropy will always:
A. stay the same
B. decrease or increase
C. stay the same or decrease
D. stay the same or increase
Say the same or increase
Water is considered both an acid and a base because...
A. it reacts with metals
B. it acts as both solute and solvent
C. it produces both hydrogen and hydroxide ions
D. it is a universal solvent
It produces both hydrogen and hydroxide ions
What currency is used in Japan?
The Yen
Identify the reaction:
Fluorine gas is reacted with Hydrochloric acid (HCl)
A. Synthesis
B. Decomposition
C. Combustion
D. Single Replacement
E. Double Replacement
Single Replacement
How many particles are in one mole?
6.02 x 1023
What is the Si unit of energy?
The Joule
Solutions with a high concentration of hydroxide ions are...
Alkaline/Basic
What was the first YouTube video to reach 1 billion views in 2012?
PSY - Gangnam Style
__H2 + O2 --> 2H2O
What number goes in the blank?
How many moles of oxygen are in Al2(SO4)3?
A. 24
B. 7
C. 1
D. 12
12
What change in entropy happens when water vapor condenses on a car's windshield overnight?
A. Increase
B. Decrease
C. Stay the same
D. No way to tell
Decrease
Substances that turn litmus paper red are...
Acidic
What famous baseball player changed history with jersey #42?
Jackie Robinson
Predict the products of the following reaction:
2Na + 2H2O -->
(Hint: Don't forget charges!)
Na2O + H2
What is the molar mass of CH4?
A. 13.02 g/mol
B. 20.01 g/mol
C. 16.05 g/mol
D. 12.01 g/mol
16.05 g/mol
Any combustion reaction would be considered...
A. Endothermic
B. Exothermic
C. Not enough information
Exothermic
pH paper is considered the most accurate indicator because...
A. it can be used to determine exact pH
B. it will only react to alkaline solutions
C. it is the only indicator which reacts to both acids and bases
D. it does not change the entire solution's color
It can be used to determine the exact pH
What is the largest desert on Earth?
Antarctica
What is the missing product:
Sr(ClO3)2 + (NH4)2SO4 --> SrSO4 + _______
NH4ClO3
What is a significant figure?
A. A way to match the least precise measurement
B. A way to round your final answer
C. Both of these
Both of these
How does entropy change in the following reaction:
2C8H18 + 25O2 --> 16CO2 + 18H2O
A. Increase
B. Decrease
C. Stays the same
D. Not enough information
Increase
What is the formula for calculating molarity?
M= mol/vol (L)
The ABC network is owned by which large entertainment company?
Disney