Select the correct answer.
Haley rubs a cotton cloth along a plastic strip. The plastic strip becomes positively charged. Why did this happen?

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.

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li