Study the given figure and answer the following questions a. On what principle this experiment is based on. State the principle
b. What is the weight of the displaced water?
c. the weight of the stone in air.
d. What is the reason that the weight of the object is less in water
than in air?

Which of the following true? a_volcanoes and earthquakes often near the plate boundaries. b_volcanoes occur whereve there are tall mountains. c_earthquakes cause volcanoes in the same location to erupt violently d_volcanoes and earthquakes occur only where plates are colliding with each other

What is the lowest number energy level where a d sublevel is found

What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate