Multiple Choice
A red solid is heated in an evacuated container until it completely vaporizes. When the vapor cools, it is found to be a sliver liquid. The mass of the silver liquid is less than that of the original solid. The red solid is best classified as
A) an element
B) a compound
C) a homogeneous mixture
D) a heterogeneous mixture
Correct Answer:
Verified
Correct Answer:
Verified
Q23: You are trying to use percent mass
Q24: Which has the greatest number of neutrons?<br>A)
Q25: Air is best classified as<br>A) an element<br>B)
Q26: 10.3 g of an unknown compound is
Q27: Which statement best describes N<sub>2</sub><br>A) it is
Q28: A marble tabletop is best classified as<br>A)
Q29: Which has the same number of neutrons
Q31: How many neutrons are in a nucleus
Q32: The element antinomy has two naturally
Q33: Methane gas (CH<sub>4</sub>) reacts with oxygen (O<sub>2</sub>)