TEXES 236 SCIENCE 7-12 DOMAIN
THREE [CHEMISTRY] EXAM
QUESTIONS AND ANSWERS GRADED A+
2025/2026
Element - ANS A substance that cannot be broken down into simpler substances
compounds - ANS 2 or more elements chemically combined
Ionic bonds are - ANS attractions between oppositely charged ions
covelant bond - ANS bond formed by the sharing of electrons between atoms
period - ANS A horizontal row of elements in the periodic table
atomic number - ANS the number of protons in the nucleus of an atom
mass number - ANS the total number of protons and neutrons in the nucleus of an atom
isotope - ANS when there are more neutrons than protons
1 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
, pressure - ANS the amount of force exerted per unit area of a surface
Boyle's Law - ANS A principle that describes the relationship between the pressure and
volume of a gas at constant temperature
Dalton's Law - ANS The total pressure of a mixture of gases is the sum of the individual
pressures (Ptotal=P1+P2+P3...)
Charles' Law - ANS the law that states that for a fixed amount of gas at a constant pressure,
the volume of the gas increases as the temperature of the gas increases and the volume of the
gas decreases as the temperature of the gas decreases
Kelvin - ANS The SI base unit of temperature
Avogadro's Principle - ANS states that equal volumes of gases at the same temperature and
pressure contain equal numbers of particles
Combined Gas Law - ANS the relationship between the pressure, volume, and temperature of
a fixed amount of gas
intramolecular forces - ANS bonding forces that hold the atoms of a molecule together
intermolecular forces - ANS forces of attraction between molecules
combustion reaction - ANS a chemical change in which an element or a compound reacts
with oxygen, often producing energy in the form of heat and light
2 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
THREE [CHEMISTRY] EXAM
QUESTIONS AND ANSWERS GRADED A+
2025/2026
Element - ANS A substance that cannot be broken down into simpler substances
compounds - ANS 2 or more elements chemically combined
Ionic bonds are - ANS attractions between oppositely charged ions
covelant bond - ANS bond formed by the sharing of electrons between atoms
period - ANS A horizontal row of elements in the periodic table
atomic number - ANS the number of protons in the nucleus of an atom
mass number - ANS the total number of protons and neutrons in the nucleus of an atom
isotope - ANS when there are more neutrons than protons
1 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
, pressure - ANS the amount of force exerted per unit area of a surface
Boyle's Law - ANS A principle that describes the relationship between the pressure and
volume of a gas at constant temperature
Dalton's Law - ANS The total pressure of a mixture of gases is the sum of the individual
pressures (Ptotal=P1+P2+P3...)
Charles' Law - ANS the law that states that for a fixed amount of gas at a constant pressure,
the volume of the gas increases as the temperature of the gas increases and the volume of the
gas decreases as the temperature of the gas decreases
Kelvin - ANS The SI base unit of temperature
Avogadro's Principle - ANS states that equal volumes of gases at the same temperature and
pressure contain equal numbers of particles
Combined Gas Law - ANS the relationship between the pressure, volume, and temperature of
a fixed amount of gas
intramolecular forces - ANS bonding forces that hold the atoms of a molecule together
intermolecular forces - ANS forces of attraction between molecules
combustion reaction - ANS a chemical change in which an element or a compound reacts
with oxygen, often producing energy in the form of heat and light
2 @COPYRIGHT 2026 ALLRIGHTS RESERVED.
