CHEM 103 FINAL EXAM QUESTIONS
AND ANSWERS WITH COMPLETE
SOLUTIONS (GRADED A+)
how many neutrons are in a neutral atom of thorium -ANSWER ✔✔140
how many protons are in a neutral atom of argon -ANSWER ✔✔18
how many outer shell electrons does silicon have -ANSWER ✔✔4
how many bonds does carbon normally make -ANSWER ✔✔4
how many bonds does nitrogen normally make -ANSWER ✔✔3
how many electrons are in the calcium ion -ANSWER ✔✔18
how many bonds does hydrogen normally make -ANSWER ✔✔1
whole milk contains water, milk sugar (lactose), milk fat and various other water
soluble substances. milk is -ANSWER ✔✔a mixture
which of the following is not a compound -ANSWER ✔✔Kr
the molecular shape (not the electronic shape) around a nitrogen that has three
other atoms bonded to it and one lone pair is -ANSWER ✔✔trigonal pyramidal
, the molecular shape (not the electronic shape) around a sulfur that has a double
bond to one oxygen and single bonds to two other oxygen is -ANSWER
✔✔trigonal planar
how many atoms are in the molecule of toluene -ANSWER ✔✔15
is vegetable oil hydrophobic or hydrophilic -ANSWER ✔✔hydrophobic
which of the following functional group is found in the molecule shown to the
right -ANSWER ✔✔an ester
here are four sketches at the molecular level of samples of matter. decide
whether each sketch shows a sample of an element, a compound, or mixture -
ANSWER ✔✔C. mixture, element, compound, element
which of the following functional groups is found in this molecule -ANSWER
✔✔carboxylic acid
how many carbons in this molecule -ANSWER ✔✔6
how many hydrogens are on the carbon labeled C -ANSWER ✔✔0
what is the shape around the atom pointed to by the arrow labeled C -ANSWER
✔✔trigonal planar
how many hydrogens are on the carbon labeled B -ANSWER ✔✔1
AND ANSWERS WITH COMPLETE
SOLUTIONS (GRADED A+)
how many neutrons are in a neutral atom of thorium -ANSWER ✔✔140
how many protons are in a neutral atom of argon -ANSWER ✔✔18
how many outer shell electrons does silicon have -ANSWER ✔✔4
how many bonds does carbon normally make -ANSWER ✔✔4
how many bonds does nitrogen normally make -ANSWER ✔✔3
how many electrons are in the calcium ion -ANSWER ✔✔18
how many bonds does hydrogen normally make -ANSWER ✔✔1
whole milk contains water, milk sugar (lactose), milk fat and various other water
soluble substances. milk is -ANSWER ✔✔a mixture
which of the following is not a compound -ANSWER ✔✔Kr
the molecular shape (not the electronic shape) around a nitrogen that has three
other atoms bonded to it and one lone pair is -ANSWER ✔✔trigonal pyramidal
, the molecular shape (not the electronic shape) around a sulfur that has a double
bond to one oxygen and single bonds to two other oxygen is -ANSWER
✔✔trigonal planar
how many atoms are in the molecule of toluene -ANSWER ✔✔15
is vegetable oil hydrophobic or hydrophilic -ANSWER ✔✔hydrophobic
which of the following functional group is found in the molecule shown to the
right -ANSWER ✔✔an ester
here are four sketches at the molecular level of samples of matter. decide
whether each sketch shows a sample of an element, a compound, or mixture -
ANSWER ✔✔C. mixture, element, compound, element
which of the following functional groups is found in this molecule -ANSWER
✔✔carboxylic acid
how many carbons in this molecule -ANSWER ✔✔6
how many hydrogens are on the carbon labeled C -ANSWER ✔✔0
what is the shape around the atom pointed to by the arrow labeled C -ANSWER
✔✔trigonal planar
how many hydrogens are on the carbon labeled B -ANSWER ✔✔1
