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zaharov [31]
4 years ago
10

What forensic technique is seen as reliable? Why is this? what makes this technique more reliable and accurate than other techni

ques?
Chemistry
1 answer:
Diano4ka-milaya [45]4 years ago
8 0
Yes, the forensic technique is seen reliable nowadays especially the DNA testing. DNA testing is one of the highly recommended forensic techniques since prior to forensic science process, it will undergo first into rigorous examination and validation of the specimen.
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A business owned and run by one person is a
S_A_V [24]
A business that is owned and run by one person is a sole proprietorship.
5 0
3 years ago
Which of the two substances would have a higher melting point: O2 or quartz (SiO2)n? Explain your answer.
sesenic [268]

Answer:

quartz (SiO2)n

Explanation:

Melting point is defined as the temperature or point at which the substances change its state from solid to liquid.

Quartz (SiO2)n has high melting point than O2 because Quartz (SiO2)n is found in the form of hard, crystalline mineral that is made up of silicon and oxygen atoms having strong covalent bonds between all the atoms. So, a lot of energy is required to break the bond between the atoms and it has a high melting point.

Hence, the correct answer is quartz (SiO2)n.

7 0
3 years ago
2. I need to find the angle of corner of a room, what tool could I use?
Pavlova-9 [17]
If anything you would use a protractor but that’s not a answer.... so I would pick whatever relates to a protractor
6 0
3 years ago
What on earth is the oxidation number of N in N2H4?
Levart [38]
N₂H₄ :

N =  - 2  

H = + 1

 2 * ( -2 ) + ( 1 * 4 ) =  - 4 + 4 = 0

hope this helps!

5 0
3 years ago
What’s the total ionic equation for NaOH reacting with HCl
exis [7]

Answer:

Na⁺ (aq) + OH⁺ (aq) + H⁺ (aq) + Cl⁻ (aq) → Na⁺ (aq) + Cl⁻ (aq) + H₂O (l)

General Formulas and Concepts:

<u>Atomic Structure</u>

  • Compounds

<u>Aqueous Solutions</u>

  • Solubility Rules
  • States of matter

<u>Stoichiometry</u>

  • Reaction RxN Prediction
  • Balancing Reactions RxN

Explanation:

<u>Step 1: Define</u>

NaOH reacting w/ HCl

NaOH is soluble

HCl is soluble

[RxN] NaOH (aq) + HCl (aq) → NaCl (aq) + H₂O (l)

<u>Step 2: Total Ionic Equation</u>

<em>Break up soluble compounds into ionic form.</em>

[T.I.E] Na⁺ (aq) + OH⁺ (aq) + H⁺ (aq) + Cl⁻ (aq) → Na⁺ (aq) + Cl⁻ (aq) + H₂O (l)

6 0
3 years ago
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