are changes affecting the form of a chemical substance, but do not change the chemical composition of that substance.
What is physical change
100
a chemical compound in which ions are held together in a lattice structure by ionic bonds.
What is ionic compounds
100
The spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation.
What is radioactivity decay
100
the branch of chemistry that studies the relation between chemical action and the amount of heat absorbed or generated.
What is thermochemical
100
having the power to dissolve still more of a substance.
What is unsaturated
200
occur when a substance combines with another to form a new substance, called synthesis or, alternatively, decomposes into two or more different substances.
What is chemical change
200
is a relation stating that in a chemical reaction, the mass of the products equals the mass of the reactants.
What is law of conservation
200
The action of dividing or splitting something into two or more parts.
What is fission
200
is the relationship described by the equation
PV = nRT
What is ideal gas law
200
A state of anxiety or nervous excitement.
What is agitation
300
(chemistry) the tendency of an atom or radical to attract electrons in the formation of an ionic bond
What is electronegativity
300
a chemical bond that involves sharing a pair of electrons between atoms in a molecule.
What is covalent bond
300
The process or result of joining two or more things together to form a single entity.
What is fusion
300
power which may be translated into motion, overcoming resistance, or effecting physical change.
What is energy changes
300
Is a group of organs that work together to perform a certain task.
What is biological system
400
the energy required to remove an electron from a gaseous atom or ion.
What is ionization energy
400
A chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red.
What is acids
400
emitted by some substances undergoing radioactive decay.
What is alpha radiation
400
s the internal energy of an object due to the kinetic energy of its atoms and/or molecules.
What is thermal energies
400
model of proton donors and proton acceptors in acid-base reactions is an improvement over the Arrhenius theory, which was limited for it stated that bases had to contain a hydroxide ion.
What is bronsted- lowry
500
is a measure of the size of an atoms ion in a crystal lattice.
What is ionic radii
500
a structural representation of a molecule where dots are used to show electron position around the atoms and lines or dot pairs represent covalent bonds between atoms.
What is electron dot formula
500
radiation of particles during radioactive decay.
What is beta radiation
500
measurement of quantities of heat.
What is calorimetry
500
separation of something from something else or the state of being disconnected.