Multiple Choice
All the following may change during a chemical reaction except
A) the total volume of the system.
B) the density of the system.
C) the temperature of the system.
D) the total number of atoms in the system.
E) the total number of molecules in the system.
Correct Answer:
Verified
Correct Answer:
Verified
Q25: What is the formula for sodium peroxide?<br>A)Na<sub>3</sub>O<sub>2</sub><br>B)NaO<br>C)Na<sub>2</sub>O<br>D)NaO<sub>2</sub><br>E)Na<sub>2</sub>O<sub>2</sub>
Q26: Which of the following atomic symbols represents
Q27: The species Ag<sup>+</sup>,Pt<sup>2+</sup>,and Tl<sup>3+</sup> are all<br>A)anions.<br>B)isotopes.<br>C)isoelectronic.<br>D)allotropes.<br>E)cations.
Q28: The formula of water,H<sub>2</sub>O,suggests<br>A)there is twice as
Q29: In a particular mass of KAu(CN)<sub>2</sub>,there are
Q31: Which of the following statements best describes
Q32: Which name-formula pair is incorrect?<br>A)HNO<sub>3</sub>,nitric acid<br>B)H<sub>3</sub>PO<sub>4</sub>,phosphoric acid<br>C)HClO,hypochlorous
Q33: The name of the SO<sub>4</sub><sup>2-</sup> ion is<br>A)persulfate.<br>B)thiosulfite.<br>C)sulfite.<br>D)sulfate.<br>E)sulfide.
Q34: The symbol for tin is<br>A)T.<br>B)Tn.<br>C)Si.<br>D)Ti.<br>E)Sn.
Q35: Suppose atom 1 has the same number