Chem - Semester I Review 2024

Front

What is the formula to calculate the amount of energy needed to change the temperature of a substance?

Back

Q = mC∆T, where Q is the heat energy, m is the mass, C is the specific heat capacity, and ∆T is the change in temperature.

Front

What does chemistry study?

Back

Chemistry is the study of matter, its properties, and the changes it undergoes.

Front

Which subatomic particle is used to identify an element?

Back

Proton.

Front

Where are the biggest atoms located on the periodic table?

Back

At the bottom left of the periodic table.

Front

Which state of matter has particles that are tightly packed?

Back

Solid.

Front

What is specific heat capacity?

Back

Specific heat capacity is the amount of heat required to raise the temperature of 1 gram of a substance by 1°C.

Front

What is the relationship between mass, specific heat, and temperature change in thermal energy calculations?

Back

The amount of thermal energy (Q) is directly proportional to the mass (m), specific heat (C), and the change in temperature (∆T).

Front

What are the three main subatomic particles?

Back

Protons, neutrons, and electrons.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of an electron?

Back

Negative.