Answer:
because that the metal dont rust so zinc is coated
Comets are usually formed of ice and other suave debris, while asteroids typically contain metals.
Answer:sorry id ont known
Explanation:give m brianlest if you want
Answer:
There are 0,89 moles of nitrous oxide gas in the balloon.
Explanation:
We apply the formula of the ideal gases, we clear n (number of moles); we use the ideal gas constant R = 0.082 l atm / K mol:
PV= nRT ---> n= PV/RT
n= 1,09 atm x 20,0 L /0.082 l atm / K mol x 298 K
<em>n= 0,89212637 mol</em>