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Darya [45]
3 years ago
8

Which is the first step in an arson investigation that helps reconstruct the fire?

Chemistry
2 answers:
Tamiku [17]3 years ago
8 0

C. taking samples of ignition source.

expeople1 [14]3 years ago
6 0
Answer is: <span>B. taking photographs.
</span>Fire scene investigation begins when investigator approaches the location and start observing the scene from a distance and begin photographing. That must be done first because crowd start gathering. Once the fire scene is secured, w<span>intesses can be interviewed.</span>
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Which of the following statements best describes why carbon can form a variety of organic compounds? Carbon atoms bond readily w
olga_2 [115]
Answer:
            <span>Carbon readily forms covalent bonds with other carbon atoms.

Explanation:
                   As we know approximately more than 95 % compounds, either isolated, discovered or synthesized belongs to organic compounds containing carbon atoms.
                  This great diversity of organic compounds is due to following facts.

1) Catenation:
                      Carbon has a peculiar behavior of self linkage. This self linkage of one carbon with another is called as catenation. In this way carbon can form a long chain of carbon atom. A branching can also take place when one carbon is bonded further to three of four carbon atoms.

2) Isomerism:
                     Secondly the carbon containing compounds show isomerism. In which molecular formula is same but structural formula is different. For example molecular formula C</span>₅H₁₂ can make following compounds,

                                a)  n-Pentane

                                b)  2-Methylbutane

                                c)  2,2-Dimethylpropane

3) Multiple Bonds:
                            Carbon can form multiple bonds i.e double bond like in alkenes and triple bonds like in alkyne. 

Due to these factors carbon gets very high number of opportunities to form large number of compounds.
7 0
3 years ago
Someone plz help i need to do this assignment to pass the class
Natalija [7]

Answer:

1)0.2

2)0.72

3)0.01

Explanation:

Formula is 1)454÷2270

2)0.6×1.2

3)8÷800

8 0
2 years ago
Which of the following animals are an example of coevolution? *
pychu [463]

Acacia ant and acacias animals are an example of coevolution

Coevolution is the reciprocal evolutionary change in a set of interacting population over time resulting from the interaction between those population and an example of coevolution that is not characteristics of an arm race but one which provides a mutual benefit to both a plant species and insect is that of the acacia ant and acacia plant and many cases of coevolution can be found between plants and insects

Know more about animal

brainly.com/question/28711835

#SPJ1

8 0
1 year ago
What affect will adding sugar have on the viscosity of water?
Radda [10]
Sugar increases the viscosity of water

hope that helps
4 0
3 years ago
Read 2 more answers
Creating a prototype and troubleshooting o
lys-0071 [83]

D. a new technology.
6 0
4 years ago
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