Which of the following is incorrect?
A) Mixtures: suspension,colloidal suspension,solution
B) Ions: Na+,Cl-,Ca² +,K+
C) Electrolytes: NaCl,KCl,CaCl₂,HCO₃-
D) Cations: Na+,Ca² +,K+,H+
Correct Answer:
Verified
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
Q24: An atom has 1 proton,0 neutrons,and 1
Q25: A solution that has a pH of
Q26: An atom has 2 protons,2 neutrons,and 2
Q28: Which of the following is true of
Q29: Which of the following can neutralize H⁺?
A)Ca²
Q30: Which of the following best describes a
Q31: What happens when HCl is added to
Q32: The heart pushes blood into the blood
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