Multiple Choice
Consider the reaction between sodium metal and chlorine gas to form sodium chloride: 2Na(s) + Cl2(g) → 2NaCl(s) Which of the following is not conserved in this reaction?
A) atoms
B) moles of atoms
C) moles of molecules
D) mass
Correct Answer:

Verified
Correct Answer:
Verified
Q122: Consider the following reaction: Cr<sub>2</sub>O<sub>3</sub>(s)+ 3CCl<sub>4</sub>(l)→ 2CrCl<sub>3</sub>(s)+
Q123: An aqueous solution containing 15.0 g of
Q124: Which of the following processes is exothermic?<br>A)boiling
Q125: Nitrogen monoxide reacts with oxygen according to
Q126: How much heat must be added to
Q128: Equal masses of ice at 0°C and
Q129: Small amounts of oxygen gas can be
Q130: A 43 g serving of a chocolate
Q131: Phosphine, PH<sub>3</sub>, a reactive and poisonous compound,
Q132: When magnesium is heated in air, it