Cheryl was asked to clasify some chemical reactions as either endothermic or exothermic reaction. She added 5.0g of five different solids to 20 mL of water and monitored the temperature change until all of the solid had dissolved. The results of the experiment are shown in the table below. List the solids that underwent exothermic reaction in solution and those that underwent endothermic reactions.

Apart of the periodic table is shown. a portion of the sixteenth and seventeenth columns of the periodic table is shown. column 16 reads eight oxygen, 16 sulfur, and 34 selenium. column 17 reads nine flourine, 17 chlorine, and 35 bromine. which of the following elements is less reactive than the others? bromine (br) oxygen (o) selenium (se) sulfur (s)

Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.

Asap. this question is 100 points if you answer it question: describe the basic relationship between ocean depth and temperature seen in the graph