Continue using the same density simulation to now answer this question.
On the Compare screen, select "Same Volume" from
the Blocks menu.
Same Volume means each block has the same volume
but a different mass. Using this information, which
block is the densest?
O the 8.00 kg yellow block
O the 6.00 kg blue block
O the 4.00 kg green block
O the 2.00 kg red block

13) a 14) a15) b16) i don't know sorry17) a (maybe)

Answer two atoms of oxygen;

Radon-222 or rn-222 has a half-life of 3.82 days. to determine the fraction of an original sample of rn-222 that remains unchanged after 7.646 days, we calculate the amount of rn-222 remaining after 7.646 days and divide it with the original amount. using 1 gram as a basis and using half-life calculation methods, we can determine that  0.249 or 0.25  grams of rn-222 will remain, and thus the fraction remaining is 0.25 or 1/4.