2 Points
Why are metals good conductors of heat?
O
A. The ductility allows heat to move along an edge quickly.
O
B. The free-moving electrons transmit heat quickly.
C. The malleable atoms slide past each other, transmitting heat.
D. The formation of alloys allows a path for heat to travel.
SUBMIT

Reaction type : double replacement hcl + lioh = h2o + licl

2licl + 3o2 i yook the test and it was correct.

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.