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Why do scientists use DNA profiling

In what stage of wastewater treatment are large objects such as rags, sticks and garbage removed from influent? 1. primary treatment 2. secondary treatment 3. tertiary treatment 4. septic tank treatment

Why does a salt compound give off light (or a colored flame) when burned? 4. did lithium chloride and sodium chloride give off similar colors? why or why not? 5. explain what you think causes different compounds to give off different flame colors. 6.

What is the percent by mass of carbon in Al (C03) 3

How many moles of 2 are required to prepare 2.00 litters of 0.700m CaCl2

Which statement describes the redox reaction that occurs when an object is electroplated? A. It is spontaneous and requires an electric current. B. It is spontaneous and produces an electric current. C.

How many grams are in 0.21mol sample of ethyl alcohol?

How is the evidence from a fire scene collected? What should be avoided?

What is covalent compound?

Sample of 76 G of NaCl is dissolved to make 1 L of a solution what is the molarity of the solution