Multiple Choice
Which group is correct?
A) Subatomic particles located within the nucleus: protons,neutrons,electrons
B) Common cations: Na+,K+,HCO₃-,NH₄+
C) Common molecules: O₂,N₂,H₂O
D) Bases: NaOH,Na HCO₃-,HCl
Correct Answer:
Verified
Correct Answer:
Verified
Q39: An atom of oxygen has an atomic
Q40: Which of the following increases the speed
Q41: An atom has 3 protons,4 neutrons,and 3
Q42: Which of the following represents bicarbonate,an anion
Q43: Which group is correct?<br>A)Blood pH 7.50,alkaline,turns litmus
Q45: A catalyst<br>A)is an H<sup>+</sup>-yielding molecule.<br>B)is an acid.<br>C)is
Q46: Which of the following is an anion?<br>A)NaCl<br>B)KCl<br>C)H₂SO₄<br>D)HCO₃-
Q47: The addition of H⁺ to blood<br>A)increases blood
Q48: Blood is called a colloidal suspension because<br>A)it
Q49: The pH of urine<br>A)is always more alkaline