Answer:
33.5 g/mol
Explanation:
PV=nRT
(1.40 atm)(8.00 L)=n(0.08206)(295 K)
n=0.463 mol
15.50 g/0.463 mol=33.5 g/mol
2Mg+O₂⇒2MgO
It can be a combustion reaction, or it can be a combination reaction
The answer is TRUE chemical changes do involve breaking and the making of chemical bonds.
Moles of CaBr2 = 5/molar mass of CaBr2
= 5/199.886
= 0.025 moles.
Hope this helps!
