Suppose you want to do an experiment to hear how three different objects with sound when dropped from the same distance. you drop a pebble, a rock, and a grain of sand. what are the variables of your experiment?

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 three types is stress that act on earths rocks are compression, tension, and

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %