Donita is a firearms investigator. She collects evidence on a suspect’s skin and clothing for gunshot residue. Which of the following tests are best used for skin and which is best for clothing? Donita uses to collect evidence from the suspect’s skin for gunshot residue. She uses to collect evidence from the suspect’s clothing.

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth

In order to complete this lab. you will need to be familiar with some common chemistry terms. complete the chemical change puzzle and list the relevant terms and their meaning below a.rectant b.product c.supernate