Two highly reactive elements in period 2 of the periodic table are the metal lithium and
a. metalloid arsenic
b. krypton
c selenium
d. fluorine

What does earth’s rotation on its axis cause? the tides night and day passing of years phases of the moon

Consider the following system at equilibrium. caco3(s) ca2+(aq) + co32–(aq) the addition of which compound will cause a shift in equilibrium because of a common ion effect? ccl4 co2 cuso4 na2co3

Llama have 74 chromosomes how many chromosomes will they be found in their gametes explain how you know