Question 1

Which subatomic particle determines the atomic number of an element?

Accepted Answer

Proton

Question 2

A neutral atom of sodium (Na) has 11 protons and 11 electrons. If it loses one electron, what does it become?

Accepted Answer

A positively charged ion

Question 3

Which type of chemical bond involves the sharing of electrons between atoms?

Accepted Answer

Covalent bond

Question 4

In a water molecule ($$H_2O$$), the electrons are not equally shared between hydrogen and oxygen. What is this type of covalent bond called?

Accepted Answer

Polar covalent bond

Question 5

Which statement best describes a redox reaction?

Accepted Answer

It involves the transfer of electrons between molecules.

Question 6

During cellular respiration, glucose is oxidized and oxygen is reduced. What does 'oxidized' mean in this context?

Accepted Answer

Glucose loses electrons

Question 7

Which of the following is an example of a synthesis reaction?

Accepted Answer

$$A + B \rightarrow AB$$

Question 8

What is the main difference between kinetic and potential energy?

Accepted Answer

Kinetic energy is the energy of motion, while potential energy is stored energy.

Question 9

According to the first law of thermodynamics, which statement is true?

Accepted Answer

Energy can be transformed but not created or destroyed.

Question 10

Which reaction is exergonic?

Accepted Answer

A reaction that releases energy to its surroundings

Question 11

In the formation of sodium chloride ($$NaCl$$), which atom acts as the reducing agent?

Accepted Answer

Sodium (Na)

Question 12

Which of the following best describes an ion?

Accepted Answer

An atom with a different number of protons and electrons

Question 13

Which type of chemical reaction involves both synthesis and decomposition occurring simultaneously?

Accepted Answer

Exchange reaction

Question 14

Which process is endergonic?

Accepted Answer

Photosynthesis

Question 15

If an atom has 8 protons, 8 neutrons, and 10 electrons, what is its charge?

Accepted Answer

Negative (-2)

Question 16

Which of the following is true about bond energy in chemical reactions?

Accepted Answer

Energy is required to break bonds and released when bonds are formed.

Question 17

A nurse administers a drug that binds to a receptor and activates it. What type of chemical interaction is most likely occurring?

Accepted Answer

Chemical bonding at the molecular level

Question 18

Which of the following best explains why understanding basic chemistry is important for nursing practice?

Accepted Answer

It allows nurses to understand how treatments work and how the body responds.

Question 19

Which equation correctly represents the overall reaction for cellular respiration?

Accepted Answer

$$C_6H_{12}O_6$ + 6O_2 \rightarrow 6CO_2 + 6H_2O$$

Question 20

Which of the following is a real-world example of a double displacement reaction?

Accepted Answer

Reaction of silver nitrate ($$AgNO_3) $$with sodium chloride ($$NaCl) to $$form silver chloride ($$AgCl) $$and sodium nitrate ($$NaNO_3)$$

Fundamental Chemistry Concepts for Health and Psychology Students

Study Guide - Practice Questions