WGU C190 PRE ASSESSMENT EXAM 2026
FULL QUESTIONS AND CORRECT ANSWERS
GRADED A+
◉ Neutrons. Answer: the particles of the nucleus that have no charge,
located in the nucleus. relative mass of 1.0
◉ Electrons. Answer: Negatively charged particles that orbit outside of
the nucleus in shells; shells fill following a specific pattern( 2 in the first
shell, 8 in the next) relative mass: negligible or 0.
◉ Ion. Answer: An atom with a positive or a negative charge.
◉ Element. Answer: is a substance that is composed of a single type of
atom.
◉ Atomic Mass. Answer: the sum of the number of protons and the
number of neutrons.
◉ Covalent bond. Answer: Strong. Occurs between atoms in the same
molecule, Electron pairs are shared, creating a strong bond between
atoms.
, ◉ Ionic Bond. Answer: Moderately strong. Occurs between charged
atoms (ions). Electron transfer from one atom to another, resulting in a
moderately strong electrostatic attraction between oppositely charged
ions.
◉ Hydrogen Bond. Answer: Weak. Occurs between atoms in different
molecules or parts of molecules. Weak electrostatic attraction between
areas of molecules with opposite partial charges.
◉ 4 properties of water. Answer: 1) excellent solvent and can dissolve a
wide range of substances.
2) it is cohesive.
3) water's temperature tends to remain stable.
4) solid water (ice) is less dense than liquid water.
◉ solvent. Answer: the component of the solution in the greatest
quantity.
◉ Solutes. Answer: The components present in lower quantities.
◉ Hydrophilic. Answer: water loving
◉ hydrophobic. Answer: water-fearing or water-hating.
FULL QUESTIONS AND CORRECT ANSWERS
GRADED A+
◉ Neutrons. Answer: the particles of the nucleus that have no charge,
located in the nucleus. relative mass of 1.0
◉ Electrons. Answer: Negatively charged particles that orbit outside of
the nucleus in shells; shells fill following a specific pattern( 2 in the first
shell, 8 in the next) relative mass: negligible or 0.
◉ Ion. Answer: An atom with a positive or a negative charge.
◉ Element. Answer: is a substance that is composed of a single type of
atom.
◉ Atomic Mass. Answer: the sum of the number of protons and the
number of neutrons.
◉ Covalent bond. Answer: Strong. Occurs between atoms in the same
molecule, Electron pairs are shared, creating a strong bond between
atoms.
, ◉ Ionic Bond. Answer: Moderately strong. Occurs between charged
atoms (ions). Electron transfer from one atom to another, resulting in a
moderately strong electrostatic attraction between oppositely charged
ions.
◉ Hydrogen Bond. Answer: Weak. Occurs between atoms in different
molecules or parts of molecules. Weak electrostatic attraction between
areas of molecules with opposite partial charges.
◉ 4 properties of water. Answer: 1) excellent solvent and can dissolve a
wide range of substances.
2) it is cohesive.
3) water's temperature tends to remain stable.
4) solid water (ice) is less dense than liquid water.
◉ solvent. Answer: the component of the solution in the greatest
quantity.
◉ Solutes. Answer: The components present in lower quantities.
◉ Hydrophilic. Answer: water loving
◉ hydrophobic. Answer: water-fearing or water-hating.
