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numbers
100
the study of matter and transformations of matter
What is chemistry
100
generic chemical reaction x---> y which the reactant?
What is x
100
lowers the activation energy
What is catalyst
100
how many electrons surround Cl in the lewis dot structure
What is 7
200
how 2 or more atoms are held together
What is chemical bond
200
generic chemical reaction x---> y which the product?
What is y
200
tendency of energy to disperse
What is entropy
200
which column in the periodic table has 2 v e-
What is 2nd
300
one atom giving up some of its electrons to another
What is ionic bond
300
a shorthand notation for illustrating a chemical reaction
What is chemical equation
300
role of entropy in chemical reactions
What is determines whether or not a reaction is favorable
300
if a neutral atom loses 1 e- which is the electrical charge of the atom
What is +1
400
a group of atoms held together by covalent bonds
What is a molecule
400
when one or more new compounds are formed by rearranging atoms
What is chemical reaction
400
reduction
What is gain of electrons
500
a combination of 2 or more substances in which they no longer retain their chemical properties
What is compound
500
aA + bB ---> cAB what are a,b,c representing
What is coefficient
500
oxidation
What is loss of electrons (leo ger)
500
which group of atoms is most likely to form an ion with a +2 charge
What is 2nd group