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
Gennadij [26K]
3 years ago
14

What uses chemicals to develop gunpowder residue patterns particularly around bullet holes

Biology
2 answers:
olga_2 [115]3 years ago
5 0

The Griess test uses chemicals to develop gunpowder residue patterns, particularly around bullet holes.

It is a scientific chemistry test which identifies the proximity of nitrite ion in liquid. One of its most significant applications is obtaining nitrite in drinking water. The test has also been extensively applied for the exposure of trace explosives comprising nitro groups. It is essential to release the nitrate ion from the nuclear explosive before the examination. This is commonly done by alkaline hydrolysis.

Blizzard [7]3 years ago
3 0
The greiss test is a chemical test used to develop patterns of gun powder residues around bullet holes. It tests for the presence of nitrates.
You might be interested in
In order for species to adapt and evolve, they must be able to
tatyana61 [14]

Answer:

Be around their own species

Explanation:

So they can be able to reproduce the genes to the next generation

3 0
4 years ago
HURRY!!!
SIZIF [17.4K]

Answer:

1. Jetty: Hard structure Built Perpendicular to the Shore, Can cause sand build-up on up drift side of the structure

2. Beach Nourishment: Brings in more sand to replace erosion.

3. Seawall: Hard structure that also provides flood protection, Prevents erosion by directing waves back to the ocean

Explanation:

Jetty is a hard and long structure that constructs of wood or concrete near the coastline, perpendicular to the shore that protects it from tides and currents which helps in preventing erosion. It can lead to build-up of sand on updrift side.

Beach nourishment is the process that replaces the sand or land that lost due to erosion and relensihsh the infrastructure of the coastline and protects the people and beach.

Seawall is also a hard provides protection from erosion by preventing the flood and pushes back the currents and tides to the ocean.

6 0
3 years ago
Write as if you you were a chromosome...( a day in the life of a chromosome)
Crazy boy [7]

The terms chromosome and gene were used long before biologists really understood what these structures were. When the Austrian monk and biologist Gregor Mendel (1822–1884) developed the basic ideas of heredity, he assumed that genetic traits were somehow transmitted from parents to offspring in some kind of tiny "package." That package was later given the name "gene." When the term was first suggested, no one had any idea as to what a gene might look like. The term was used simply to convey the idea that traits are transmitted from one generation to the next in certain discrete units.

Magnification of chromosome 17, which carries the breast and ovarian cancer gene. (Reproduced by permission ofCustom Medical Stock Photo, Inc.)

The term "chromosome" was first suggested in 1888 by the German anatomist Heinrich Wilhelm Gottfried von Waldeyer-Hartz (1836–1921). Waldeyer-Hartz used the term to describe certain structures that form during the process of cell division (reproduction).

One of the greatest breakthroughs in the history of biology occurred in 1953 when American biologist James Watson (1928– ) and English chemist Francis Crick (1916– ) discovered the chemical structure of a class of compounds known as deoxyribonucleic acids (DNA). The Watson and Crick discovery made it possible to express biological concepts (such as the gene) and structures (such as the chromosome) in concrete chemical terms.

<span>

Read more: <span>http://www.scienceclarified.com/Ca-Ch/Chromosome.html#ixzz57wQgdEzZ</span></span>
6 0
4 years ago
What happens when light doesn’t spread out?
Gelneren [198K]
Spreading out a wave over a larger area just causes the wave strength to weaken, but does not cause gaps to form. Therefore, if you look at photons as waves, spatial gaps never form in light as it travels through free space, no matter how dim it gets.
6 0
3 years ago
What is a community?
yarga [219]

Answer:

A community is a group people who all live in the same environment and place and help each other out in certain situation.

Explanation:

5 0
3 years ago
Other questions:
  • Jason is studying a multicellular organism that can easily move around its environment. This organism must consume other organis
    15·1 answer
  • Suppose mendel breeds some true-breeding tall pea plants together with true-breeding short plants, to produce hybrid offspring (
    11·1 answer
  • What are <br> mRNA codons
    13·2 answers
  • Why doesn't work get done on certain regions of dna molecules?
    12·1 answer
  • Nitrogen makes up how much of earths atmosphere subject is sience
    15·1 answer
  • Mrs. Adams has been growing a pea plant. She waters the plant every day and keeps it by her window so that it receives plenty of
    14·1 answer
  • In eukaryotic cells, cellular respiration (aerobic) occurs in the _____
    10·1 answer
  • Which chemicals are used to cut DNA into fragments for a gel electrophoresis procedure?
    5·2 answers
  • Which of the following microbes cannot reproduce unless it first infects a cell in a host organism?
    8·1 answer
  • What is the meaning of inland?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!