Answer:
768g
Explanation:
We can use to formula 
. Here, N(A) is the final amount. N0 is the initial amount. t is the time elapsed, and 
is the half life. Plugging in, we get the answer above.
I think the answer is (4) 600.K and 0.50 atm, for gases behave most ideally at high temperature and low pressure.
Hope this helps~
Physical damage.
If you burned the pencil, it would be considered chemical.
multiply answers
ventilation
humidity
insulation
surface temperature
Explanation:
ventilation-well ventilated room could increase the body's cooling process
humidity-being in a humid location could cool the body at a slower rate
insulation-a body wrapped in something will cool slower then one not
surface temperature-a body on a hit surface will cool slower than one on a cold surface
Option d: copper.
Because copper is an element, not a mixture.
