When a certain clear red-brown liquid passes through a filtering apparatus no material is collected on the filter. What can be said about this liquid?
A) It is an element.
B) It is a compound.
C) It is a solution.
D) We cannot determine if it is an element, a compound or a solution.
D
You might also like to view...
As far back as 1620, Sir Francis Bacon commented on the similarity of the shorelines of western Africa and eastern South America and posited that the Old and New Worlds might once have been joined
Indicate whether the statement is true or false
Which color stars have the coolest surface temperature?
A) blue B) orange C) red D) yellow
Small, single-celled autotrophs covered with disks of calcium carbonate fixed to the outside of their cell walls are
____________. Fill in the blank(s) with the appropriate word(s).
?Why do braided streams form in a dry climate instead of meandering streams?
a. ?The stream flows on a broad, flat surface, so it spreads out and braids. b. ?The stream has too little water to carry the total sediment supplied. c. ?The stream channel is so shallow that the stream flows easily over its banks. d. ?Water soaks down to the water table, so it doesn’t ever flow downslope. e. ?There are so many channels that they can’t help but cross one another to form a braided pattern.