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Murljashka [212]
2 years ago
9

Please help picture included 50 points!

Chemistry
2 answers:
exis [7]2 years ago
4 0

Answer:

4 is the oxidation in the reaction

adoni [48]2 years ago
3 0
The answer would be 4
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Help me understand molarity please
Katyanochek1 [597]
Molarity/ molar is a unit of concentration, symbolized by "M". It is the ratio of the number of moles of solute and the volume of solution.

Molarity = Moles of solute ÷ Liters of solution = moles/liter = M
molarity is define as the number of mole of a solute in 1 liter of solution
3 0
3 years ago
I'll give 50 pts and brainliest
e-lub [12.9K]

Answer:

Response is below

Explanation:

The different types of mining are underground, surface, placer, and in-situ. Underground mining uses various materials to excavate resources from beneath the surface of the Earth. Surface mining is a category of mining that in which soil and rock overlying the mineral deposit are removed. Placer mining is the mining of stream bed deposits for minerals. In-situ mining is a mining process used to recover minerals such as copper and uranium through boreholes drilled into a deposit.

3 0
3 years ago
What is the energy of an electromagnetic wave with a electromagnetic wave with a frequency of 3 * 10 Hz ?
Olin [163]

Answer:

E=1.989*10^{-32}J

Explanation:

From the question we are told that:

Frequency f=3 * 10 Hz

Generally the equation for Energy of an electromagnetic wave is mathematically given by

 E=hf

Where

  h=Planck's constant

  h=6.62607015 * 10^{-34}

Therefore

 E=6.62607015 * 10^{-34}*3 * 10

 E=1.989*10^{-32}J

8 0
3 years ago
If the atomic weight of nitrogen is 14.01, what is the mass of the nitrogen atoms in one mole of cadmium nitrate, Cd(NOÀ)¿?
Hatshy [7]
2x14.01 =28.02 
<span>ans is B</span>
3 0
3 years ago
Which of the following is true about oxidation-reduction reactions?
zloy xaker [14]

Answer:

the last one probably

Explanation:

6 0
3 years ago
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