MTTC integrated Sciences 094 physical sciences Accurate 100%

Plasma - ANSWER ionized gas that has some electrons that are described as free because they are not bound to an atom or molecule specific gravity - ANSWER measurement of the density of substances in a liquid compared to water atomic theory - ANSWER a theory that states that all matter is composed of tiny particles called atoms. John Dalton - ANSWER developed modern atomic theory negative ion - ANSWER anion, gains electrons positive ion - ANSWER cation; loses electrons ionic bond - ANSWER Formed when one or more electrons are transferred from one atom to another Ionization - ANSWER neutral molecules gain or lose electrons valence electrons - ANSWER Electrons on the outermost energy level of an atom covalent bond - ANSWER A chemical bond that involves sharing a pair of electrons between atoms in a molecule hydrogen bond - ANSWER weak attraction between a hydrogen atom and another atom Van der Waals interactions - ANSWER Weak attractions between molecules or parts of molecules that result from transient local partial charges. 2 most abundant elements in the universe - ANSWER hydrogen and helium isotope - ANSWER An atom with the same number of protons and a different number of neutrons from other atoms of the same element. combustion reaction - ANSWER the oxidation reaction of an organic compound, in which heat is released; exothermic power - ANSWER the rate at which work is done work - ANSWER quantity of energy transferred by a force when it is applied to a body and causes that body to move in the direction of the force