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Chem 181 Review 1 Flashcards | StudBud
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Chem 181 Review 1
Chem 181 Review 1
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A quiz to review introductory #chem concepts
Flashcards
15 cards
F
Practice quiz
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Host live
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Questions
15
Answers
1
Practice question: choose A.
@
α
A
1
2
Identify the number of protons, neutrons, and electrons in an atom of cadmium-115.
48 protons, 64 neutrons, & 50 electrons
48 protons, 48 neutrons, & 48 electrons
48 protons, 67 neutrons, & 46 electrons
48 protons, 67 neutrons, & 48 electrons
3
What significant change to atomic theory resulted from Rutherford's gold foil experiment?
Small, positive, dense nucleus
Existence of charged particles
Electron orbitals
Existence of neutrons
4
The correct chemical formula for methanol is
CH4
none of the above
CH3OH
C2H5OH
5
The element with the symbol Fe is named:
felicity
iron
ferrum
fermium
6
Dimensional analysis is:
the hardest thing we've ever done
a useful tool for doing conversions and other calculations
the easiest thing we've ever done
a key to finding the all the answers we've ever wanted
7
What is the IUPAC name for Pb(CH
3
COO)
2
°3H
2
O?
lead(IV)ethanoate trihydride
lead(II)ethanoate trihydride
lead(II)ethanoate-3-water
lead(IV)ethanoate-3-water
8
Predict the monatomic ion formed by phosphorus. (Charge and name)
P-3, phosphide ion
PO4-3, phosphate ion
P+5, phosphorus ion
P-3, phosphoride ion
9
The chemical formula for zinc phosphate is:
Zn3(PO4)2
ZnPO4
Zn3PO4
Zn(PO4)2
10
Which of the following is a heterogeneous mixture?
10K gold
pizza
gasoline
syrup
11
The isotope that contains 23 protons, 30 neutrons and 27 electrons is:
vanadium-53 atom
cobalt(IV)-53 ion
vanadium(IV)-53 ion
zinc-53 atom
12
How many significant figures are in the number 0.045010g?
4
5
7
infinite
13
What family of the periodic table includes calcium?
transition metals
3
alkaline earth metals
alkaline metals
14
The traditional name for aqueous hydrogen sulphate is:
sulfurous acid
hydrosulfuric acid
sulfuric acid
battery acid
15
Calculate 3.45x10
3
L+5.4x10
2
L to the correct number of significant figures.
8.88x105L
4.0x103L
3.99x103L
1.87x106L
