Chemistry Final - FCCS Best Exam Questions With 100% Accurate Answers
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Module
Chemistry FCCS
Institution
Chemistry FCCS
During a chemical reaction - ANSWER-atoms are rearranged
An equation is balanced by - ANSWER-adding coefficients
An atom's ability to undergo chemical reactions is determined by its - ANSWER-outermost electrons
List the seven diatomic elements - ANSWER-H2, N2, O2, F2, Cl2, Br2, I2
Note:...
Chemistry Final - FCCS Best Exam
Questions With 100% Accurate Answers
During a chemical reaction - ANSWER-atoms are rearranged
An equation is balanced by - ANSWER-adding coefficients
An atom's ability to undergo chemical reactions is determined by its - ANSWER-
outermost electrons
List the seven diatomic elements - ANSWER-H2, N2, O2, F2, Cl2, Br2, I2
Note: Know our Lewis Dot structures - ANSWER-Note: include the total number of
valence electrons for each compound
List the four general types of chemical reactions - ANSWER-Combination,
Decomposition, Single Replacement, and Double Replacement
The compounds of a chemical reaction are called ? - ANSWER-Reactants and products
Note: remember how to balance equations - ANSWER-you may have to indicate the
type of reaction taking place
Note: remember how decomposition reactions work - ANSWER-write the chemical
formula for each compound and correctly decompose it
The molar mass of 1 mole of lithium hydroxide (LiOH) is ? - ANSWER-24g
What is the number of atoms in 24g of calcium (Ca) ? - ANSWER-3.622 x 10^23
, A salt shaker is filled with 17.0 grams of sodium chloride. How many moles does it
contain? - ANSWER-0.291 Mol of NaCl
Calculate the molar mass of Al2Si2O5(OH)4 - ANSWER-257.8g
Calculate the molar mass of C5H10 - ANSWER-70g
Describe what is molar volume? - ANSWER-the volume 1 mole of any gas takes up
Describe what STP stands for - ANSWER-Standard Temperature and Pressure
How many molecules are in 1 mole of Argon (Ar) gas? - ANSWER-6.022 x 10^23
A formula that gives that simplest whole number ratio of the atoms of the elements is
called? - ANSWER-Empirical Formula
If you wanted to produce Carbon Dioxide from 12 grams of carbon, how many grams of
oxygen would you need? - ANSWER-32 g
A 50 L container holds 60 moles of a gas at a temperature of 200 degrees Celsius.
What is the pressure in atmospheres insides the container? - ANSWER-P = 46.6 ATM
There are 125 L of gas in a container at a temperature of 250 degrees Celsius. If the
gas is cooled until the volume has decreased to 75L, what will be the temperature of the
gas. - ANSWER-523K
How many moles of gas occupy 100L at a pressure of 3.2 atmospheres and a
temperature of 135 degrees Fahrenheit - ANSWER-11.8 moles
A compound is found to contain 63.52% iron and 36.48% sulfur. Find its empirical
formula. - ANSWER-FeS or 1:1
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