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
luda_lava [24]
1 year ago
5

Which unit applies principles and techniques of chemistry, physics, and geology to the identification and comparison of crime sc

ene evidence?
Chemistry
1 answer:
Arlecino [84]1 year ago
8 0

The physical science unit of criminal investigation applies principles and techniques of chemistry, physics, and geology to the identification and comparison of crime scene evidence.

<h3>What is forensics in criminal investigation?</h3>

Forensics science is any of several fields of study involving the collection of physical evidence and its subsequent analysis.

The aim is to use of science and technology in the investigation and establishment of facts or evidence in a court of law.

There are several units involved in forensics science such as the following;

  • Biology unit
  • Physical science unit

The physical unit of forensics is the unit that applies principles & techniques on chemistry, physics and geology, which are physical science fields, to identify and compare crime scene evidence.

Learn more about forensics at: brainly.com/question/14403044

#SPJ1

You might be interested in
What is the function of the pistil and stamen of a plant?
Soloha48 [4]

Answer:

the answer is A

Explanation:

Hopefully u get the answer right

5 0
2 years ago
Write a molecular equation for the precipitation reaction that occurs (if any) when the following solutions are mixed. If no rea
iragen [17]

Answer :

(A) The balanced molecular equation will be:

K_2CO_3(aq)+Pb(NO_3)_2(aq)\rightarrow 2KNO_3(aq)+PbCO_3(s)

(B) The balanced molecular equation will be:

Li_2SO_4(aq)+Pb(CH_3COOH)_2(aq)\rightarrow 2LiCH_3COOH(aq)+PbSO_4(s)

(C) The balanced molecular equation will be:

Cu(NO_3)_2(aq)+Na_2S(aq)\rightarrow 2NaNO_3(aq)+CuS(s)

(D) The balanced molecular equation will be:

Sr(NO_3)_2(aq)+2KI(aq)\rightarrow \text{No reaction}

Explanation :

Molecular equation : It is defined as a balanced chemical equation where the ionic compounds are expressed in the form of molecules rather than component of ions.

Precipitation reaction : It is defined as the reaction in which an insoluble salt formed when two aqueous solutions are combined.

The insoluble salt that settle down in the solution is known an precipitate.

Part A  : potassium carbonate and lead(II) nitrate

The balanced molecular equation will be:

K_2CO_3(aq)+Pb(NO_3)_2(aq)\rightarrow 2KNO_3(aq)+PbCO_3(s)

In this reaction, lead carbonate is an insoluble salt and potassium nitrate is a soluble solution.

Part B : lithium sulfate and lead(II) acetate

The balanced molecular equation will be:

Li_2SO_4(aq)+Pb(CH_3COOH)_2(aq)\rightarrow 2LiCH_3COOH(aq)+PbSO_4(s)

In this reaction, lead sulfate is an insoluble salt and lithium acetate is a soluble solution.

Part C : copper(II) nitrate and sodium sulfide

The balanced molecular equation will be:

Cu(NO_3)_2(aq)+Na_2S(aq)\rightarrow 2NaNO_3(aq)+CuS(s)

In this reaction, Cuprous sulfide is an insoluble salt and sodium nitrate is a soluble solution.

Part D : strontium nitrate and potassium iodide

The balanced molecular equation will be:

Sr(NO_3)_2(aq)+2KI(aq)\rightarrow 2KNO_3(aq)+SrI_2(aq)

In this reaction, strontium iodide and potassium nitrate are soluble solution.

Sr(NO_3)_2(aq)+2KI(aq)\rightarrow \text{No reaction}

6 0
3 years ago
HELP ASAP!!!!!!
blondinia [14]

2, 4, 1

Explanation:

We have the following chemical reaction:

Ag₂O → Ag + O₂

To balance the chemical equation the number of atoms of each element entering the reaction have to be equal to the number of atoms of each element leaving the reaction, in order to conserve the mass.

So the balanced chemical equation is:

2 Ag₂O → 4 Ag + O₂

Learn more about:

balancing chemical equations

brainly.com/question/14112113

brainly.com/question/14187530

#learnwithBrainly

6 0
3 years ago
What are the two cell division stages in the mitotic phase of the cell cycle?
Ugo [173]
Cytokinesis and telophase!
6 0
3 years ago
Jenavius placed a marshmallow in the microwave to make a smore for desert. The marshmallow expanded when it was heated. How can
puteri [66]
The heat is expanding it from the inside it cooks from the inside out
8 0
3 years ago
Read 2 more answers
Other questions:
  • Nearly all ionic compounds are solids at room temperature in the solids the total blank charge is balanced by the
    11·1 answer
  • The formation of soil is primarily the result of
    11·2 answers
  • Identify the number of significant figures in each value. 147,320 g
    8·2 answers
  • What would the concentration be of a solution made
    8·1 answer
  • NO<br> Assign oxidation numbers to each element in this compound.
    9·1 answer
  • In the reaction of sodium with oxygen
    12·2 answers
  • What is the name of this hydrocarbon?
    8·2 answers
  • About how many elements are found on the periodic table? Question 8 options:
    8·1 answer
  • How to know how many electrons are involved in bonding of propane ?
    5·2 answers
  • An ion of a single pure element always has an oxidation number of ________. a. 1 b. magnitude equal to its atomic number c. 0 d.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!