Test Bank - Chemistry: The Central Science, 13th Edition
Exam Questions with correct Answers
.Accuracy - ANSWER-A description of how close a measurement is to the true value of the quantity
measured.
.Alcohols - ANSWER-Alkanes that have 1+ hydrogens replaced by -OH, e.g. Methanol, ethanol
subgroup of alkanes
ex:
CH4 (methane) --> CH3OH (methanol)
(same # of C and H but +1 O)
-e + ol --> methan (-e) + (-ol) --> methanol
C2H6 --> C2H5OH --> ethane --> ethanol
.alkali metals - ANSWER-any metal in group 1a of the periodic table; ex: Na, Li, K
.alkaline earth metals - ANSWER-metallic elements in group 2A of the periodic table which are harder
than the alkali metals and are also less reactive; ex: Be, Mg, Ca
.Alkanes - ANSWER-organic compounds with only carbon & hydrogen bonds - hydrocarbons
.Ampere - ANSWER-unit of electric current (A or amp)
.anode - ANSWER-Positively charged electrode
, .Atom - ANSWER-smallest building block of matter; represents an element
.atomic mass - ANSWER-Number of protons and neutrons in a given atom
.atomic number - ANSWER-the number of protons in an atom
.Atomic Theory of Matter - ANSWER--each element is made of extremely small particles, atoms
-all atoms of the same element are identical but they differ from atoms of other elements
-atoms cannot be subdivided, created, or destroyed in any chemical reactions
-atoms of different elements combine in simple whole number ratios to form chemical compounds
-in chemical reactions atoms are combined, separated, or rearranged
.atomic weight - ANSWER-The average mass numbers of all the isotopes of an element.
.candela - ANSWER-luminous intensity (cd)
.cathode - ANSWER-Negatively charged electrode
.Cathode Ray Experiment - ANSWER-(JJ Thompson 1987)
An experiment that showed that electrons had mass and a charge
.centi - ANSWER-10^-2
.Chalcogens - ANSWER-Group 6A - non-m. - 2 valence e- short of stable
O, S, Se, Te, Po
.chemical change/reaction - ANSWER-a substance is transformed into a chemically different substance
.chemical formula(s) - ANSWER-Formulas that show ratio or proportions of elements in a compound
Exam Questions with correct Answers
.Accuracy - ANSWER-A description of how close a measurement is to the true value of the quantity
measured.
.Alcohols - ANSWER-Alkanes that have 1+ hydrogens replaced by -OH, e.g. Methanol, ethanol
subgroup of alkanes
ex:
CH4 (methane) --> CH3OH (methanol)
(same # of C and H but +1 O)
-e + ol --> methan (-e) + (-ol) --> methanol
C2H6 --> C2H5OH --> ethane --> ethanol
.alkali metals - ANSWER-any metal in group 1a of the periodic table; ex: Na, Li, K
.alkaline earth metals - ANSWER-metallic elements in group 2A of the periodic table which are harder
than the alkali metals and are also less reactive; ex: Be, Mg, Ca
.Alkanes - ANSWER-organic compounds with only carbon & hydrogen bonds - hydrocarbons
.Ampere - ANSWER-unit of electric current (A or amp)
.anode - ANSWER-Positively charged electrode
, .Atom - ANSWER-smallest building block of matter; represents an element
.atomic mass - ANSWER-Number of protons and neutrons in a given atom
.atomic number - ANSWER-the number of protons in an atom
.Atomic Theory of Matter - ANSWER--each element is made of extremely small particles, atoms
-all atoms of the same element are identical but they differ from atoms of other elements
-atoms cannot be subdivided, created, or destroyed in any chemical reactions
-atoms of different elements combine in simple whole number ratios to form chemical compounds
-in chemical reactions atoms are combined, separated, or rearranged
.atomic weight - ANSWER-The average mass numbers of all the isotopes of an element.
.candela - ANSWER-luminous intensity (cd)
.cathode - ANSWER-Negatively charged electrode
.Cathode Ray Experiment - ANSWER-(JJ Thompson 1987)
An experiment that showed that electrons had mass and a charge
.centi - ANSWER-10^-2
.Chalcogens - ANSWER-Group 6A - non-m. - 2 valence e- short of stable
O, S, Se, Te, Po
.chemical change/reaction - ANSWER-a substance is transformed into a chemically different substance
.chemical formula(s) - ANSWER-Formulas that show ratio or proportions of elements in a compound
