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
Angelina_Jolie [31]
3 years ago
9

What are the Eight types of bloodstain patterns ?

Chemistry
2 answers:
nika2105 [10]3 years ago
5 0
Bloodstain Pattern Analysis (BPA), one of several specialties in the field of forensic science, involves the study and analysis of bloodstains at a known or suspected violent crime scene with the goal of helping investigators draw conclusions about the nature, timing and other details of the crime.

The use of bloodstains as evidence is not new; however, new experts have claimed to be able to use fluid dynamics, physics, and other calculations to determine with accuracy previous events at a crime scene. For example, the shape of blood droplets might be used to draw conclusions as to how far away the victim was from a gun when they were shot.

This technique of forensic science has drawn more skeptical scrutiny since 2000; large amounts of the body of work in BPA is done by crime investigators using subjective hunches rather than scientists from other disciplines. A report released by The National Academy of Sciences in 2009 highlighted several incidents of blood spatter analysts to overstate their qualifications as well as questioned the reliability of their methods in the courtroom.

valentina_108 [34]3 years ago
4 0

Passive bloodstain

Transfer pattern

Gunshot spatter

You might be interested in
According to the pattern of carbon and hydrogen atoms in alkenes, if a molecule has three carbon atoms, how many hydrogen atoms
Gekata [30.6K]
 <span>6. 

Because the general formula for alkenes is CnH2n</span>
4 0
3 years ago
Read 2 more answers
If the length, width, and height of a box are 10.00 cm, 7.25 cm and 3.00 cm, respectively, what is the volume of the box in unit
Blizzard [7]

<u>Answer:</u>

<u>For a:</u> The volume of the box is 217.5 mL

<u>For b:</u> The volume of the box is 0.2175 L

<u>Explanation:</u>

The box is a type of cuboid.

To calculate the volume of cuboid, we use the equation:

V=lbh

where,

V = volume of cuboid

l = length of cuboid = 10.00 cm

b = breadth of cuboid = 7.25 cm

h = height of cuboid = 3.00 cm

Putting values in above equation, we get:

V=10.00\times 7.25\times 3.00=217.5cm^3

  • <u>For a:</u>

To convert the volume of cuboid into milliliters, we use the conversion factor:

1mL=1cm^3

So,

\Rightarrow 217.5cm^3\times (\frac{1mL}{1cm^3})\\\\\Rightarrow 217.5mL

Hence, the volume of the box is 217.5 mL

  • <u>For b:</u>

To convert the volume of cuboid into liters, we use the conversion factor:

1L=1000cm^3

So,

\Rightarrow 217.5cm^3\times (\frac{1L}{1000cm^3})\\\\\Rightarrow 0.2175L

Hence, the volume of the box is 0.2175 L

3 0
3 years ago
The oxidation number of magnesium in magnesium chloride is _____.
LenaWriter [7]
I hope this would be able to help u
dont forget the symbol its +2

3 0
3 years ago
when 6.25 grams of pure iron are allowed to react with oxygen , a black oxide forms. if the product weighs 8.15 g, what is the e
erik [133]
We are given with the mass of  pure iron that reacts with oxygen to form an oxide which has a given mass as well. the mass of oxygen reacted is 8.15-6.25 g or 1.9 grams. THen we convert the mass of the reactants to moles. Iron is equal to 0.1119 moles and oxygen is equal to 0.1188. We divide each number to the less amount. Hence iron is 1 and oxygen is approx 1. The empirical formula hence is FeO or ferrous oxide or Iron (II) oxide.
5 0
3 years ago
How do you convert volume to moles at STP?
Vanyuwa [196]

The conversion of volume to moles at STP is 1 mole.

The ideal gas equation is given as :

P V = n R T

where,

P = pressure of the gas

V = volume of the gas

n = ?

R = constant = 0.823 atm L / mol K

T = temperature

At STP , the pressure is 1 atm and the temperature is 273.15 K, the volume At STP is 22.4 L.

moles , n = P V / R T

n = ( 1 × 22.4 ) / (0.0823 × 273.15)

n = 1 mole

Thus, at STP , the number of moles is 1 mol.

To learn more about moles here

brainly.com/question/8429153

#SPJ4

6 0
1 year ago
Other questions:
  • The primary method in which two connected objects transfer energy by heat flow is _____.
    5·2 answers
  • Materials of low mass are combined to form a substance of higher mass during ____. a. fission c. both A and B b. fusion d. neith
    14·1 answer
  • Rank each of the following compounds in decreasing order of reactivity towards Friedel-Crafts alkylation. Most reactive = 1; if
    5·1 answer
  • Nitrogen dioxide gas is obtained by the reaction of nitrogen monoxide gas and oxygen gas . Write a balanced chemical equation fo
    12·1 answer
  • How many oxygen atoms are in the Perth products of the balanced reaction below
    15·1 answer
  • Consider the reaction:C2H5OH(l) + 3O2(g) 2CO2(g) + 3H2O(l); DH = -1.37 x 103 kJConsider the following propositions:I. The reacti
    11·1 answer
  • Complete the equation for the reaction of sulfuric acid and sugar (sucrose). C12H22O11 + 11 H2SO4 ? 12 + 11 H2SO4 + 11
    6·1 answer
  • Weathering is a process in the rock cycle. How does weathering contribute to the formation of rocks?
    9·2 answers
  • Methane is a major component of natural gas, which is used as a fuel in homes.Write a balanced equation for the complete oxidati
    5·1 answer
  • What is the mass of one gram of calcium?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!