(a) Name three substances which are fed into the furnace of point A. (b) Name the substance which is introduced into the furnace through point C.
(e) Write the balanced chemical equation for the reactions occurring at each of the
following temperature,
1. 1600°C
iii. 850°C
ii. 1200"
(d) What substances are produced at
1. Point
Point D?
(e) What is the function of limestone in the blast furnace?
(1) What is the importance of the product formed at point B?

What is the theoretical yield of carbon dioxide? a)0.993 gb)2.98 gc)3.65 gd)8.93 g

Compare and contrast physical changes with chemical changes.

How do temperature and salinity affect deepwater currents? as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.