CHEM 101 FINAL EXAM QUESTIONS FULLY SOLVED 2026 UPDATED.

CHEM 101 FINAL EXAM QUESTIONS
FULLY SOLVED 2026 UPDATED.
Consider a neutral atom with 30 protons and 34 neutrons. The number of electrons in this atom
is?



A. 30

B. 32

C. 34

D. 64

E. 94 - Answer A. 30



Identify the noble gas in the following list.



A. oxygen

B. Helium

C. Chlorine

D. Gold

E. Nitrogen - Answer B. Helium



The formation of a gas resulting from the escape of high-energy particles from the surface of a
liquid is known as.



A. deposition

B. evaporation

C. melting

D. Boiling

E. sublimation - Answer B. Evaporation



Which of the following is a measurement of mass in the metric system?

, E. centimeter - Answer B. kilogram



When solid is converted directly to a gas, the change of state is called



A. sublimation

B. condensation

C. boiling

D. melting

E. freezing - Answer A. sublimation



Which of the following is an example of a physical change?



A. digesting a cheeseburger

B. burning coal

C. grinding coffee beans

D. converting water to hydrogen and oxygen

E. baking a cake - Answer C. grinding coffee beans



Helium is a(n)



A. homogeneous mixture

B. electron

C. heterogeneous mixture

D. compound

E. element - Answer E. element



The specific heat of copper is 0.092 cal/g °C, and the specific heat of silver is 0.057 cal/g °C. If
100 cal of heat is added to one g of each metal at 25°C, what is the expected result?



A. the copper will reach a temperature lower than 25°C

B. The two samples will reach the temperature.