Chem 101 | Questions with 100% Verified Answers | Latest Update 2026/2027

Chem 101 | Questions with 100% Verified Answers | Latest
Update 2026/2027

Question: First periodic table

Answer:
earth, air, water, fire

Question: What are the states of matter?

Answer:
solid, liquid, gas

Question: What makes something solid?

Answer:
particles are closely spaced, lowest kinetic energy, incompressible, definite shape and
volume

Question: What makes something a liquid?

Answer:
particles are closely spaced, but can slide by each other, medium amount of kinetic
energy, incompressible, assume the shape of their container, fixed volume

Question: What makes something a gas?

Answer:
widely spaced particles, highly compressible, fills container entirely (volume not fixed),
assume shape of container, highest amount of kinetic energy

Question: Classifying matter

Answer:
pure substance or a mixture

Question: Pure substance

Answer:
contains only 1 type of particle (element or molecule), any element, a collection of like
molecules (H2O, CO2, NaCl) (C, Au)

,Question: H

Answer:
hydrogen

Question: Li

Answer:
lithium

Question: N

Answer:
nitrogen

Question: O

Answer:
oxygen

Question: B

Answer:
boron

Question: Ne

Answer:
neon

Question: Na

Answer:
sodium

Question: Si

Answer:
silicon

Question: S

Answer:
sulfur

, Question: P

Answer:
phosphorus

Question: Ar

Answer:
argon

Question: Ca

Answer:
calcium

Question: Mixture

Answer:
physical combination of 2 or more pure substances (salt water, air) can be either
homogeneous or heterogeneous

Question: Homogeneous mixture

Answer:
constant composition throughout (air, filtered seawater, black coffee)

Question: Heterogeneous mixture

Answer:
non constant composition (pizza, beef stew, unfiltered seawater)

Question: H2

Answer:
H-H

Question: F2

Answer:
fluorine

Question: Cl2

Answer:
chlorine