6. If a strip of magnesium reacts with oxygen gas, the mass of the resulting magnesium oxide will be
the Inass of the pure magnesium.
A. less than
O B. more than
O C. the same as
D. it cannot be determined

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

fdvwsa gfwsargebgeebbfwfwffw gwf   vgwgw gw f gwgw fgw v v dsv dwfff

can you list the answers so i can answer

elements make up everything, and they combine to make compounds.

the answer is c