An atom has 1 proton,0 neutrons,and 1 electron; its isotope has
A) 2 electrons and 0 neutrons.
B) 2 protons and 2 neutrons.
C) 1 proton and 1 neutron.
D) 2 protons and 0 neutrons.
Correct Answer:
Verified
Q19: [H⁺] refers to
A)an isotope of hydrogen.
B)heavy hydrogen.
C)hydrogen
Q20: Which of the following is an anion?
A)NaCl
B)KCl
C)H₂SO₄
D)HCO₃-
Q21: Iron can be a(n)
A)anion.
B)electrolyte.
C)acid.
D)cation.
Q22: Zinc,selenium,cobalt,and iodine are all
A)trace elements.
B)compounds.
C)radioactive.
D)isotopes of hydrogen.
Q23: Which pH is considered neutral?
A)7.35
B)7.45
C)7.00
D)14.0
Q25: A solution that has a pH of
Q26: An atom has 2 protons,2 neutrons,and 2
Q27: Which of the following is incorrect?
A)Mixtures: suspension,colloidal
Q28: Which of the following is true of
Q29: Which of the following can neutralize H⁺?
A)Ca²
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