What will be ratio of yields of hydrogen produced by the action of (1) dil. HCI[Fe + 2HCl = FeCl2 + Hz) and (ii) super-heated steam (3Fe + 4H,0 = Fe2O4 + 4H_) on the same amount of metallic iron?
[Fe = 56; Cl = 35.5}.​

All forces cause motion? true or false

As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.

In november 1987, a massive iceberg broke loose from the antartic ice mass and floated free in the ocean. the chunk of ice was estimated to be 98 mi long, 25 mi wide, and 750 ft thick. a typical backyard swimming pool contains about 24,000 gallons of water. how many of these pools could you fill from the water in this iceberg? (assume the iceberg is a rectangular solid of the above dimensions and consists of water only). express answer in scientific notation.