what question was jan trying to answer with her design?
a.
how does water travel in the water cycle?
b.
what will make a light bulb light up?
c.
how can i measure the speed of a toy car?
d.
what causes day

Why are people not able to scuba dive in the deep part of the ocean

Which other elements contain the same number of outer electrons as sodium

The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams