CHM 113 EXAM REVIEW SOLVED QUESTIONS COMPLETE ANSWERS GRADED A PLUS

CHM 113 EXAM REVIEW SOLVED QUESTIONS COMPLETE ANSWERS GRADED A PLUS
CHM 113 Actual EXAM Paper 2026/2027 Questions
and Answers Verified Solutions Latest Update

Question:
What is the chemical symbol for the element, copper?

Answer:
Cu



Question:
Which property is a chemical property

Answer:
flammability



Question:
Which of the following mixtures is heterogeneous?

Answer:
granite



Question:
Which of the following processes is/are physical changes? Select all that apply

Answer:
water evaporating, tearing a piece of aluminum in half



Question:
Which unit is NOT an SI base unit?

Answer:

,celcius



Question:
Which metric prefix means 10^-9

Answer:
nano



Question:
Which of the following measurements has three significant figures?

Answer:
.00871 m3



Question:
An Olympic-sized swimming pool can hold approximately 6.60 x 105 gallons of water. Calculate
the volume of the water in cubic meters (m3). Express your answer with the correct number of
significant figures. Hint: 1 gal = 3.785 L

Answer:
2.50 x 10^3



Question:
Aluminum has a density of 2.70 g/cm3. If a piece of aluminum foil weighs 0.853 g, what is the
volume of the piece of foil (in cm3)? Express your answer with the correct number of significant
figures.

Answer:
.316



Question:
Which scientist is credited with the discovery of the proton?

,Answer:
Ernest Rutherford



Question:
How many protons, neutrons and electrons are in the isotope, 238U?

Answer:
92 protons, 146 neutrons, 92 electrons



Question:
Which property is NOT a property of a non-metal?

Answer:
Lose electrons easily



Question:
Group 6A on the periodic table is also known as _______________.

Answer:
Chalcogens



Question:
Which of the following statements is false regarding cations?

Answer:
polyatomic ions cannot be cations



Question:
What is the correct formula for a compound composed of zinc and chlorine?

Answer:

, ZnCl2



Question:
What is the oxidation number for the iron atom in the compound, Fe3(PO4)2?

Answer:
+2



Question:
What is the correct name for the chemical formula, Mg(OH)2?

Answer:
magnesium hydroxide



Question:
Which of the following chemical formulas is correctly paired with its name?

Answer:
P4O10, tetraphosphorus decoxide



Question:
Which of the following is NOT a strong acid?

Answer:
HF



Question:
Which of the following would a chemical equation NOT include?

Answer:
The masses of both the reactants and the products