The answer is C. If the Fours were all the way on the left it would make all of the zeros Significant figures.
A sodium atom forms NA+1 ion by losing two electrons
Spring tides is when the daily tidal range is greatest and neap tides are when the daily tidal range is the smallest. As for alignment, spring tides occur when the earth, moon, and sun are directly in alignment with each other. Neap tides occur when the earth is in alignment with the sun, but the moon is at a 90 degree angle from that
Density always tells you the mass of exactly one unit of volume of a given substance.The answer is 68 g
