Basic Chemistry Quiz- Anatomy

What is a molecule?

• A combination of two or more elements

• A group of atoms bonded together

• A single atom

• An isotope of an element

Which particle in an atom is involved in chemical bonding?

• Proton

• Neutron

• Electron

• Nucleus

What kind of charge does the nucleus of an atom have?

• Positive

• Negative

• Neutral

• Variable

Which subatomic particle determines the reactivity of an atom?

• Proton

• Electron

• Neutron

• Nucleus

In a neutral atom, the number of protons is equal to the number of:

• Neutrons

• Isotopes

• Electrons

• Atomic mass units

What is the term for an atom that has gained or lost electrons?

• Molecule

• Ion

• Isotope

• Proton

Which type of bond is formed when one atom gives an electron to another atom?

• Ionic bond

• Covalent bond

• Hydrogen bond

• Polar covalent bond

Which of the following is a macromolecule?

• Water

• Protein

• Carbon dioxide

• Sodium chloride

What is the role of water in chemical reactions within the body?

• It acts as a catalyst

• It serves as a solvent

• It donates electrons

• It inhibits reactions

What is a compound?

• A substance made of two or more elements chemically combined

• A mixture of substances

• A single element

• A substance that cannot be broken down