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aliya0001 [1]
2 years ago
14

C. By examining the physical and chemical properties of evidence at a crime scene, investigators can

Chemistry
1 answer:
OLEGan [10]2 years ago
3 0

Answer:

Physical and chemical properties of evidence can pinpoint the cause of unalive, or can identify the unaliver!

Explanation:

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lana [24]
I found a presentation of Food web of a pond that will greatly connect with the above problem.  http://www.eduweb.com/portfolio/earthsystems/food/foodweb4.html

Normal setting:
Species        Pop. size
Blue heron   Medium
Perch            Medium
Bass              Medium
Minnows      Medium
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If PERCH population size decreases, 
Species        Pop. sizeBlue heron   LowPerch            LowBass              MediumMinnows      HighInverts          HighAlgae           Low

As you can see, 4 other species are affected when the Perch population size decreased. Bass is not affected. 
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Do Alkali Metal Compounds form precipitates? And Why?
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Answer:

Alkali metal hydroxides can be used to test the identity of metals in certain salts. The colour of the precipitate will help identify the metal : Calcium hydroxide is soluble; no precipitate is formed.

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2 years ago
Which type of force results when an object touches another object?
sweet-ann [11.9K]
This problems answer is contact force because you are touching it
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C.Dissolve because its another word for soluble

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Why do the densities of most substances increase when temperature decreases?
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