The correct answer is 7 I just took the test :)
Saturated Solution: A solution with solute that dissolves until it is unable to dissolve anymore, leaving the undissolved substances at the bottom. Unsaturated Solution: A solution ( with less solute than the saturated solution )that completely dissolves, leaving no remaining substances. Supersaturated Solution.
Answer:
lighting a match is the answer.
The alkali metals are first column, alkali earth 2nd, halogens 2nd to last, and noble gases last. Hope it helps!
I think its A. it cant be C or D b/c we are measuring the distance between Earth and Saturn, not the speed.