While looking at strontium (Sr) on the periodic table, a student needs to find an element in the same period but with a greater atomic mass. Where should the student look?

directly up to calcium (Ca)
directly down to barium (Ba)
directly to the left at rubidium (Rb)
directly to the right at yttrium (Y)

Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: 2al(s)+3cl2(g)→2alcl3(s) what is the maximum mass of aluminum chloride that can be formed when reacting 32.0 g of aluminum with 37.0 g of chlorine? express your answer to three significant figures and include the appropriate units.

The concept of empiricism states that all rationally accepted knowledge is determined from experience. francis bacon was one of the first scientists to promote this theory. what was it’s impact on society?

List four observations that indicate that a chemical reaction may be taking place