STRAIGHTERLINE CHEMISTRY FINAL EXAM VERSION 1 LATEST WITH 280 QUESTIONS AND CORRECT VERIFIED ANSWERS/ STRAIGHTERLINE CHEMISTRY FINAL LATEST (NEW!!)

STRAIGHTERLINE CHEMISTRY FINAL EXAM
VERSION 1 LATEST WITH 280 QUESTIONS AND
CORRECT VERIFIED ANSWERS/ STRAIGHTERLINE
CHEMISTRY FINAL LATEST 2025-2026 (NEW!!)


What is the term used for findings that are summarized based on a pattern or trend?

a. Law

b. Hypothesis

c. Theory

d. Phenomena

e. Prediction - CORRECT ANSWER-a. Law



Which of the following is a tentative explanation for a set of observations?

Select one:

a. Law

b. Hypothesis

c. Theory

d. Phenomena

e. Prediction - CORRECT ANSWER-b. Hypothesis



If a liquid contains 60% sugar and 40% water throughout its composition then what is it called?

Select one:

a. Solute

b. Compound

c. Homogeneous mixture

d. Heterogeneous mixture

e. Solvent - CORRECT ANSWER-c. Homogeneous mixture

,A sample of nitrogen gas at 298 K and 745 torr has a volume of 37.42 L. What volume will it occupy if
the pressure is increased to 894 torr at constant temperature?

Select one:

a. 22.3 L

b. 31.2 L

c. 44.9 L

d. 112 L

e. 380 L - CORRECT ANSWER-b. 31.2 L



If the atmospheric pressure in Denver is 0.8800 atm, what is this pressure expressed in mmHg? (1
atm = 101,325 Pa = 760 torr, 1 torr = 1 mmHg)?

Select one:

a. 151.5 mmHg

b. 1.16 × 10-3 mmHg

c. 863.6 mmHg

d. 8.92 × 104 mmHg

e. 668.8 mmHg - CORRECT ANSWER-e. 668.8 mmHg



What is the volume of NH3 produced in the following reaction when 3.0 L of N2 reacts with 4.0 L of
H2 ?

N2(g) + 3H2(g) → 2NH3(g)

Select one:

a. 1.5 L

b. 2.7 L

c. 6.0 L

d. 7.5 L

e. 12 L - CORRECT ANSWER-b. 2.7 L



What are the conditions of STP?

Select one:

a. 0 K and 1 atm

,b. 273.15 K and 760 torr

c. 0°C and 760 atm

d. 273.15°C and 760 torr

e. 0°C and 1 torr - CORRECT ANSWER-b. 273.15 K and 760 torr



In the van der Waals equation, the constant a is a constant that is part of a correction factor for
_________.

Select one:

a. the volume of the gas

b. the temperature of the gas

c. the pressure of the gas

d. the ideal gas constant - CORRECT ANSWER-c. the pressure of the gas



Diethyl ether, (CH3CH2)2O, used as a solvent for extraction of organic compounds from aqueous
solutions, has a high vapor pressure, which makes it a potential fire hazard in laboratories in which it
is used. How much energy is released when 100.0 g is cooled from 53.0°C to 10.0°C?



Normal boiling point 34.5°C

Heat of vaporization 351 J/g

Specific heat of (CH3CH2)2O(l) 3.74 J/g • °C

Specific heat of (CH3CH2)2O(g) 2.35 J/g • °C

Select one:

a. 10.1 kJ

b. 16.1 kJ

c. 21.6 kJ

d. 35.1 kJ

e. 48.6 kJ - CORRECT ANSWER-e. 48.6 kJ



Which substance will exhibit hydrogen bonding between molecules?

Select one:

a. (CH3)3N

, b. CH3-O-CH3

c. CH3CH2-OH

d. CH3CH2-F

e. HI - CORRECT ANSWER-c. CH3CH2-OH



Which of the following statements is true?

Select one:

a. The higher the viscosity, the faster a liquid flows.

b. The viscosity increases with increasing temperature.

c. The stronger the intermolecular forces, the higher the viscosity.

d. Hydrogen bonding in water gives rise to its unusually low viscosity.

e. The viscosity of gases is larger than the viscosity of liquids. - CORRECT ANSWER-c. The
stronger the intermolecular forces, the higher the viscosity.



If liquid bromine is cooled to form a solid, which type of solid does it form?

Select one:

a. atomic

b. metallic

c. molecular

d. ionic

e. covalent - CORRECT ANSWER-c. molecular



In a sample of hydrogen iodide, __________________ are the most important intermolecular forces.

Select one:

a. dipole-dipole forces

b. London dispersion forces

c. hydrogen bonding

d. covalent bonds

e. polar covalent bonds - CORRECT ANSWER-a. dipole-dipole forces



Krypton has a higher melting point than argon because of its