when a perpetrator forgets something at a crime scene
When does trace evidence occur?
A.
when a perpetrator forgets something at a crime scene
B.
when an eyewitness tells investigators what they saw
C.
when a perpetrator wears shoes that can be traced to the manufacturer
D.
when two objects come into contact with one another
Answers: 3
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Based on the law of conservation of energy, which statement is false? answer- energy is lost when machines dont work right
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You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount
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Insoluble sulfide compounds are generally black in color. which of the following combinations could yield a black precipitate? check all that apply. na2s(aq)+kcl(aq) li2s(aq)+pb(no3)2(aq) pb(clo3)2(aq)+nano3(aq) agno3(aq)+kcl(aq) k2s(aq)+sn(no3)4(aq)
Answers: 1
When does trace evidence occur?
A.
when a perpetrator forgets something at a crime scene
when a perpetrator forgets something at a crime scene
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