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2 years ago

Which of the following equations does not represent a redox reaction?

Chemistry

1 answer:

bija089 [108]2 years ago

4 0

Answer:

a. NH3+ HCl → NH4Cl

c. 2O3 → 3O2

Explanation:

A redox reaction is a reaction in which there is loss or gain of electrons. As a result of that , there is a change in the oxidation number of the species involved in the reaction.

If we look at the species shown in the answer, there isn't any change in oxidation number as we move from left to right hence they are not redox reactions.

Redox reactions lead to change in oxidation number of species from left to right.

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Due to changes in the environment, having lighter-colored fur becomes a

Alik [6]

Answer:

There will be more light-colored wolves.

Explanation:

Evolution is based off the survival of those with the most advantages in the wild. Since their light coat gives them a survival advantage, they will reproduce more.

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2 years ago

How many atoms in 134 moles of an element B?

Marina86 [1]

Answer:

8.06966961e+25

Explanation:

Atom = Mole / 6.0221415E+23

1 Mole = 6.0221415E+23 Atom

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3 years ago

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What is chemistry?

Shkiper50 [21]

Answer: chemistry is love ❤️ #bae

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2 years ago

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230g sample of a compound contains 136.6g carbon, 26.4g hydrogen, and 31.8g nitrogen. What is masspercentif oxygen

natulia [17]

Answer:

15.3 %

Explanation:

Step 1: Given data

Mass of the sample (ms): 230 g

Mass of carbon (mC); 136.6 g

Mass of hydrogen (mH): 26.4 g

Mass of nitrogen (mN): 31.8 g

Step 2: Calculate the mass of oxygen (mO)

The mass of the sample is equal to the sum of the masses of all the elements.

ms = mC + mH + mN + mO

mO = ms - mC - mH - mN

mO = 230 g - 136.6 g - 26.4 g - 31.8 g

mO = 35.2 g

Step 3: Calculate the mass percent of oxygen

%O = (mO / ms) × 100% = (35.2 g / 230 g) × 100% = 15.3 %

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3 years ago

Easy ways to understand ionic formulae?

NemiM [27]

Https://superhumanacademy.com/how-to-memorize-polyatomic-ions-chemical-formulas/

This is how I memorized the ionic formulae. It is a lot to remember, so it does take some time and studying. But this website helped me learn it fast and in a suuuper unique way. I learned it 3 years ago and could still name quite a bit of them. Hope this helps!!!

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3 years ago