An atom with a charge of +1 has an atomic number of 6 and a mass number of 14. How many neutrons does it have?
A) 14
B) 6
C) 8
D) Cannot be determined from the information given
C
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Which of these is listed by EPA as a criteria air pollutant?
A. mercury B. chlorofluorocarbons C. carbon monoxide D. All of these are criteria air pollutants.
The substance shown below is called cisplatin and is used in the treatment of testicular cancer. [Pt(NH3)2Cl2] What is the oxidation state of Pt in this substance?
A) 0 B) +1 C) +2 D) +3 E) +4
Which of the following statements is true of surface ocean currents?
A) Surface currents concentrate warm water in the center of the gyre at mid latitudes. B) Surface currents form circular patterns in the major ocean basins called "gyres." C) Surface currents occur within and below the pycnocline. D) Surface currents transport cold water toward the poles. E) Surface currents transport warm water toward the equator.
Ionic bonds are bonds that
a. share electrons. b. occur when an electron is transferred from one atom to another. c. share electrons unequally. d. lose an electron.