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Sig. Fig. / Precision & Accuracy
Isotopes, Protons, Neutrons, Electrons
Photons, Electronic Configurations, Orbitals, Periodic Trends
Naming & Formulas
Bonding, Polarity, Hybrids
100

Which of the following is used to indicate precision?

  1. Standard deviation

  2. Percent error

  3. Percent relative deviation

  4. The mean


Percent relative deviation

100

Identify the element that has a mass number of 74 and 33 protons.

  1. Re

  2. As

  3. Ag

  4. Hs

As

100

Which of the following elements has the largest radius?

  1. Na

  2. K

  3. Mg

  4. Ca

K

100

What is the appropriate name for the following molecule: H2SO4

  1. Hydrogen sulfate

  2. Hydrosulfuric acid

  3. Sulfuric acid

  4. Sulfurous acid

Sulfuric acid

100

Which of the following are ionic molecules?

  1. NaCl

  2. H2O

  3. CH4

  4. O2

NaCl

200

Which of the following contains 5 significant figures?

  1. 5.3222*10-3 km

  2. 9.8792 m

  3. 10000. mm

  4. All of the above

All of the above

200

Which of the following is NOT a characteristic of isotopes?

  1. Same number of protons

  2. Same number of electrons

  3. Same number of neutrons

  4. Different mass numbers

Same number of neutrons

200

The wavelength of red light is 724 nm. What is the energy of a photon of red light?

  1. 2.75*10-19 J

  2. 4.14*1014 Hz

  3. 2.74 J

  4. 4.14*1014 J

2.75*10-19 J

200

What is the appropriate name for the following molecule: CH3CH3

  1. Dimethane

  2. Methane

  3. Butane

  4. Ethane

Ethane

200

Which of the following molecules is not polar?

  1. CH2O

  2. CO

  3. CH4

  4. HF

CH4

300

4Which of the following is the shortest distance?

  1. 5.21 km

  2. 4.98*103 m 

  3. 1.24*1019 nm

  4. 1.87*104 mm

1.87*104 mm

300

Which of the following elements are isoelectronic?

  1. The noble gases

  2. H+, H, and H-

  3. Li+, O-, and F

  4. Mg2+, Na+, and F-

Mg2+, Na+, and F-

300

Which of the following atoms is most electronegative?

  1. O

  2. C

  3. Si

  4. S

O

300

What is the appropriate name for the following molecule: Hg2O

  1. Mercury oxide

  2. Mercury monoxide

  3. Mercury (I) oxide

  4. Mercury (II) oxide

Mercury (I) oxide

300

What is the geometry of H2O?

  1. Bent

  2. Trigonal Planar

  3. Tetrahedral

  4. Linear

Bent

400

Which of the following is the most precise weight?

  1. 154.098 g

  2. 42 kg

  3. 100 mg

  4. 1.0057*105 g

1.0057*105 g

400

Which of the following pairs of elements are isotopes?

  1. 4020Ca and 4018Ne

  2. 11H and 42He

  3. 168O and 188O

  4. 42He and 42He

168O and 188O

400

Which of the following best describes the electron configuration of O-?

  1. [Ne]

  2. [Ne]3s23p4

  3. [He]3s23p5

  4. [He]2s22p5

[He]2s22p5

400

What is the formula of the following molecule: Copper (II) phosphate

  1. Cu2PO4

  2. CuPO4

  3. Cu2(PO4)3

  4. Cu3(PO4)2

Cu3(PO4)2

400

Which of the following only contains 1 sigma bond?

  1. H2O

  2. CH4

  3. CO

  4. NaCl

CO

500

If the laboratory experiment is supposed to produce 15.24 g of 02, which of the following is most accurate?

  1. 1.54 kg

  2. 1.24*103 mg

  3. 1.49*104 mg

  4. 2.11*10-2 kg

1.49*104 mg

500

How many valence electrons does 136C have?

  1. 6

  2. 4

  3. 7

  4. 13

4

500

Which of the following best describes the electron configuration of Ca?

  1. [Ar]

  2. [Ar]4s24p1

  3. [Ar]4s2

  4. [Ne]3s2

[Ar]4s2

500

What is the appropriate name for the following molecule: ClF3

  1. Monochlorine trifluoride

  2. Monochlorine trifluorine

  3. Chlorine fluoride

  4. Chlorine trifluoride

Chlorine trifluoride

500

What is the hybridization of carbon atom in this molecule?

  1. sp

  2. sp2

  3. sp3

  4. sp4

sp2