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Anni [7]
3 years ago
6

True or False:

Chemistry
2 answers:
Murrr4er [49]3 years ago
7 0

Answer:

Explanation:

True

Mkey [24]3 years ago
5 0

Answer:

true the coefficient of oxygen is 2

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We are now finished learning about the various units in forensics. Using what we have learned in class all year and this week’s
stiks02 [169]

Pathology is the main branch of forensics in order to solve a criminal justice case, although other branches may also be important.

<h3>What are forensics sciences?</h3>

Forensic sciences refer to the scientific fields aimed at solving justice cases such as DNA sample forensics.

Other fields in forensics science include:

  • forensic botany
  • forensic archeology
  • forensic physics

In conclusion, pathology is the main branch of forensics in order to solve a criminal justice case, although other branches may also be important.

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5 0
2 years ago
What is the first step in creating a Lewis structure for a molecule?
lilavasa [31]
You should first count all the valence electrons. Then draw the central atom and single bonds to the rest (then go from there)
4 0
3 years ago
A sugar solution is 15% pure. How
Arada [10]

Answer:

Amount of sugar in solution = 82.5 gram

Explanation:

Given:

Sugar in solution percentage = 15%

Total solution = 550 grams

Find:

Amount of sugar in solution

Computation:

Amount of sugar in solution = Sugar in solution percentage x Total solution

Amount of sugar in solution = 15% X 550

Amount of sugar in solution = 82.5 gram

8 0
3 years ago
How do cations form?
d1i1m1o1n [39]

For cations, the loss of an electron leaves them with a net positive charge, whereas for anions, the addition of an electron leaves them with a net negative charge. Understanding the processes behind this, including the ionization energy and electron affinity of different atoms, helps you see why certain atoms become ions more easily than others and what causes it to happen.

5 0
3 years ago
A 0.45-g sample of aspirin is decomposed into its constituent elements and found to contain 0.27 g C, 0.020 g H and 0.16 g O
andre [41]

Explanation:

Given parameters:

Mass of aspirin = 0.45g

Mass of C = 0.27g

Mass of H = 0.02g

Mass of O = 0.16g

Unknown:

Mass percentage of the constituents = ?

Solution:

To find the mass percent, ensure that sum of the mass of the elements  add up to the that of the given mass of aspirin

 Total mass = 0.27 + 0.02 + 0.16 = 0.45g

Now express each of the given percentages to that of the total one.

mass percent of C = \frac{0.27}{0.45} x 100 = 60%

mass percent of H = \frac{0.02}{0.45} x 100 = 4.4%

mass percent of O = \frac{0.16}{0.45} x 100  = 36%

learn more

Mass concentration brainly.com/question/8170905

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8 0
4 years ago
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