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Scrat [10]
3 years ago
7

What are Oxygens important uses (and why)?

Chemistry
1 answer:
Setler [38]3 years ago
8 0

Answer:

Common uses of oxygen include production of steel, plastics and textiles, brazing, welding and cutting of steels and other metals, rocket propellant, oxygen therapy, and life support systems in aircraft, submarines, spaceflight and diving.

Explanation:

Oxygen is used to degrade hydrocarbon compounds, which are broken apart by heating them. This is used to create combustion that usually liberates water and carbon dioxide, but can also produce the hydrocarbons acetylene, propylene and ethylene. Oxygen is used in sewage-treatment and water-purification plants.

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just help me with 2a) but if you have a lot of time you can just give me answer for all of it so i can check my answer , thank y
stepladder [879]

Answer:

The reaction forming aluminum bromide is Al + 3Br2 → 2AlBr3

6 0
3 years ago
10. In what part of the world might you find Mystery Island (note: you will be given full-credit for simply attempting this ques
OLga [1]
Well countries near the quitter of warmer than countries than the poles. So the mystery island would probably be near the equator near Florida or in Florida
4 0
3 years ago
What is the total E associated with one mole of photons (a unit known as the Einstein) of 3.91x1019 Hz?
sashaice [31]

Answer:

        E=1.56\times 10^{10}J

Explanation:

The<em> energy of a photon</em>, E, can be calculated with the Planck-Einstein equation:

          E=hf

Where:

  • h is Planck's constant 6.626×10⁻³⁴ J.s, and
  • f is the frequency of the photon or electromagnetic radiation.

Substituting with your data:

          E=6.626\times 10^{-34}J.s\times 3.91\times 10^{19}s^{-1}=2.5908\times 10^{-14}J

Now multiply by Avogadro's number to obtain the energy of one mole of photons:

          E=2.5908\times 10^{-14}J\times 6.022\times 10^{23}=1.56\times 10^{10}J

8 0
3 years ago
If you accidentally lost some sand when you decanted tyhe NaCl, how would the % salt calculation be affected?
skad [1K]

Answer:

Unchanged.

Explanation:

Hello,

In this case, for the experiment you performed, as you previously removed the sodium chloride, its % salt calculation will not be affected by the lost of the sand. It is important to remember that such experiments must be performed carefully as the committed error is a high-impact factor regarding to the experiment's performance. It is important for you to remember that to separate the sodium chloride, it earlier dissolution in water allowed to be dissolved leveraging the insolubility of sand in water, thus, it was decanted easily.

Best regards.

5 0
4 years ago
Which two statements explain how a cell's parts help it get nutrients?
olchik [2.2K]

Answer:

A and i think D

Explanation:

8 0
3 years ago
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