99. When excess of zinc reacts with 10ml of H. S04. 224ml His librated at NTP the
strength of H2SO, is
i. 10N
ii. IN
iii. 2N
iv. 4N​

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Explain what happens at the saturation point when adding salt to water at room temperature.

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering