Answer:
Explanation:some data are missing are they need experiment??
Answer:
401135 kJ
Explanation:
From the balanced quation,
(q/n) = CΔE
Molar heat of combustion = 7.85kJk × (303.81-298.70)k
= 7.85kj × 5.11
= 40.1135kj
Because they are not conductors of electricity.
Explanation:
magnetic separation is used for the iron fillings and sodium chloride
The iron fillings will stick to the magnet
then evaporation can help to remove water