Author Question: The action of some commercial drain cleaners is based on the following reaction: 2 NaOH(s) + 2 Al(s) ... (Read 93 times)

jlmhmf · **on:** Aug 27, 2018

The action of some commercial drain cleaners is based on the following reaction: 2 NaOH(s) + 2 Al(s) + 6 H2O(l) 2 NaAl(OH)4(s) + 3 H2(g) What is the volume of H2 gas formed at STP when 6.32 g of Al reacts with excess NaOH?

A) 3.50 L
B) 5.25 L
C) 7.87 L
D) 8.59 L

Question 2

What is the term for an element that generally has a low density, low melting point, and is not
a good conductor of heat and electricity?

A) metal
B) nonmetal
C) semimetal
D) all of the above
E) none of the above