VERIFIED {100%correct}LATEST 2024/2025
1. Which of the following best describes the role of a B)
catalyst in a reaction? A) A catalyst increases the acti-
vation energy required for a reaction to take place, B) a
catalyst increases the rate at which reactants become
products, C) a catalyst shifts the reaction towards
the reactants, D) a catalyst increases the amount of
product produced
2. Which of the following describes he effect of increas- A)
ing the concentration of the reactants in a reaction? A)
the reaction rate will increase, B) the reaction rate will
decrease, C) the change in the reaction rate will de-
pend on the temperature of the reaction, D) the change
in the reaction rate will depend on the pressure of the
reaction
3. Which of the following substances is reduced in the A)
reaction shown below? Fe2)3 + 3CO - 2Fe + 3CO2 A)
Fe, B) O, C) CO, D) CO2
4. Which of the following equations is a balanced equa- C)
tion? A) 2KCLO3 - KCL + 3O2, B) KCLO3 - KCL + 3O2,
C) 2KCLO3 - 2KCL + 3O3, D) 6KCLO3 - 6KCL + 3O2
5. Which of the following types of reactions is shown C)
below? Pb (NO3)2 + K2CrO4 - PbCrO4 + 2KNO3 A)
combustion, B) decomposition, C) double displace-
ment, D) single replacement
6. Which of the following terms describes a solution in A)
which more solvent can be dissolved? A) unsaturated,
B) saturated, C) supersaturated, D) homogenous
7. In a carbonated soda, carbon dioxide is dissolved B)
in water. Which of the following terms describes the
water in this mixture? A) common ion, B) solvent, C)
solute, D) precipitant
8. D)
1/8
, TEAS Exam Multiple Choice
Which of the following best describes a substance
with a pH of 12? A) very acidic, B) slightly acidic, C)
neutral, D) very basic
9. Which of the following acids is a strong acid? A) B)
HCLO, B) HBr, C) HF, D) HN3
10. Which of the following terms describes the phase D)
change from liquid to solid? A) evaporation, B) depo-
sition, C) melting, D) freezing
11. Which of the following is likely to have the highest C)
number of molecules? A) 1 liter of gaseous CO2, B)
1 liter of liquid CO2, C) 1 liter of solid CO2, D) 1 liter of
a mix of solid and gaseous CO2
12. Which of the following describes a physical change? A)
A) water becomes ice, B) batter is baked into a cake, C)
a firecracker explodes, D) an acid is neutralized with
a base
13. Which of the following elements is most likely to form B)
an ionic bond? A) argon, B) calcium, C) copper, D)
nitrogen
14. Which of the following bonds is the most polar? A) C)
H-C, B) H-O, C) H-F, D) H-N
15. Which of the following lists the elements carbon, A)
fluorine, oxygen, and nitrogen in order of increas-
ing electro negativity? A) C<N<O<F, B) F<N<O<C, C)
F<O<N<C, D) C<N<F<O
16. Which of the following elements is an alkali metal? A) A)
sodium, B) oxygen, C) neon, D) iron
17. What is the charge of an atom with 5 protons and 7 D)
electron? A) 12, B) -12, C) 2, D) -2
18. C)
2/8