1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ivann1987 [24]
3 years ago
14

5. You are investigating an arson scene and you find a corpse in the rubble, but you suspect that the victim did not die as a re

sult of the fire. Instead, you suspect that the victim was murdered earlier, and that the blaze was started to cover up the murder. How would you go about determining whether the victim died before the fire
Chemistry
1 answer:
Marina CMI [18]3 years ago
8 0

Answer:

See the answer below.

Explanation:

Fire has three major components:

  • Heat
  • Smoke
  • Gases ( in form of CO, CO2 etc)

If the victim had died as a result of the fire, he/he would have inhaled smoke and hot gases from the fire. These components would have resulted in traces of burns and soot deposition in the trachea and lungs as well as traces of CO in the blood of the victim.

If the analysis of the victim's corpse does not reflect some of the results above, it can be effectively concluded that the victim has been dead before the fire.

<em>The single most important indicator of death by the fire would be the presence of CO in the blood of the victim's corpse. All others might be to a less significant degrees.</em>

You might be interested in
Which Chemical Reaction is balanced?
cupoosta [38]

Answer:

A

Explanation:

The letter A is the correct answer

7 0
3 years ago
Which statement is true for most autotrophic organisms?
lara [203]

omg yees

eExplanation:

5 0
2 years ago
What is the oxidation number of phosphorus (P) in phosphoric acid (H3PO4)?
Sedaia [141]

Hey there!:

H is always +1 so the H's have a +3 charge.

O is always -2 so the O's have a -8 charge .

Now, suppose oxidation state for P = X , then :

+3  + X + (-8) = 0      (because of neutral molecule)

x = 8 - 3

x = + 5

So, X = +5 oxidation state.

Answer  C


Hope that helps!

4 0
3 years ago
What is an isotope ? And how do we use it ?
Sergeu [11.5K]
Somewhat of the same element, have same amount of protons but different number of neutrons. <span />
3 0
3 years ago
Why sunlight is an essential source of life sustenance on Earth ?​
Elenna [48]

Answer:

The sun is important to Earth because it helps regulate the climate, is the main source of energy for producers in the ecosystems and it keeps the oceans from freezing, along with providing light. If just one of these factors changed dramatically, it would impact all life on Earth. Without the sun, the planet’s oceans would freeze, temperatures would drop and all life would die off without light or food.

The sun is important to every single aspect of life on the planet. Human life could not exist without it because it would cause all of the water and food sources to cease to exist. The sun is in no danger of disappearing any time soon. Scientists estimate the sun has at least another 5 billion years before it turns into a red giant and swallows up Mercury and Venus. It will also destroy all life on Earth because it will be close to the planet once that change occurs. The temperature of the sun will also increase tenfold from 18 million to 180 million degrees Fahrenheit. The increase in the sun’s size when it finally begins to change will be due to the heat increase causing expansion.

Without the sun, we would no energy to live, no plants to eat, no trees to give us oxygen or animals to roam. We would not have gravity to keep the earth in orbit. Without the sun, the earth would be dark and cold and life would quickly disappear.

7 0
2 years ago
Other questions:
  • Explain why gasoline will not dissolve in water.
    12·2 answers
  • Which of the analogies below is a location-based analogy?
    10·1 answer
  • What is the [ch3co2-]/[ch3co2h] ratio necessary to make a buffer solution with a ph of 4.34? ka = 1.8 × 10-5 for ch3co2h?
    11·1 answer
  • The curiosity is important in the progress of science because it
    13·2 answers
  • Why is the finance charge important to consider when shopping for credit?
    6·1 answer
  • If the alum reaction was done starting with 12.000 g of al, how many moles of hydrogen gas would be produced according to the ba
    9·1 answer
  • Give two examples of elevation.
    12·1 answer
  • In a first order reaction 40% of reactant gets converted into product in 30 minutes. What time would it require to convert 75% i
    11·1 answer
  • Who wants to talk till 1am? hmu:)
    12·1 answer
  • what do you think would be the chemical formula of a trisaccharide made of three bonded glucose molecules?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!