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fredd [130]
4 years ago
8

A cell is built using two electrodes: What reaction occurs at the cathode?

Chemistry
1 answer:
Nezavi [6.7K]4 years ago
4 0
A is the answer your welcome 
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a ________ amino acid is likely to be found on the surface of a protein molecule, where it can link to other molecules.
MA_775_DIABLO [31]

Can you give the options for the answer?

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What particles are used for artificial transmutations?
Doss [256]

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C

Explanation:

6 0
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Read 2 more answers
Please help with this. Thank you
frozen [14]

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There are four lava flows which are known as, Pahoehoe lava flow, Aa lava flow, Blocky lava flow, and also Pillow lava flow. For basaltic lava flows 10-15 minutes to be thick enough to walk on, when others can take up to 7 months.

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3 years ago
What is the best name for the following compound? CCl4
Nitella [24]

Answer:

The answer is b. Carbon Tetrachloride

Explanation:

Let's discard the other options:

a. It couldn't be carbon chloride because there are four (4) chloride ions in the molecular formula. The molecular formula for the carbon chloride must be CCI. So, this answer is wrong

c. It could be monocarbon tetrachloride because there are 4 chloride ions and 1 carbon ion, but it's not necessary to use the prefix "mono" because there is just one carbon ion in the formula. In that way, when we mention carbon in the name, there is implicit that there is just one carbon atom in the formula. So, this answer could be ok, but isn't the best.

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6 0
4 years ago
What is the mass of oxygen in 3.34 g of potassium permanganate?
3241004551 [841]

Answer:

1.35 g

Explanation:

Data Given:

mass of Potassium Permagnate (KMnO₄) = 3.34 g

Mass of Oxygen: ?

Solution:

First find the percentage composition of Oxygen in Potassium Permagnate (KMnO₄)

So,

Molar Mass of KMnO₄ = 39 + 55 + 4(16)

Molar Mass of KMnO₄ = 158 g/mol

Calculate the mole percent composition of  Oxygen in Potassium Permagnate (KMnO₄).

Mass contributed by Oxygen (O) = 4 (16) = 64 g

Since the percentage of compound is 100

So,

                        Percent of Oxygen (O) = 64 / 158 x 100

                        Percent of Oxygen (O) = 40.5 %

It means that for ever gram of Potassium Permagnate (KMnO₄) there is 0.405 g of Oxygen (O) is present.

So,

for the 3.34 grams of Potassium Permagnate (KMnO₄) the mass of Oxygen will be

                  mass of Oxygen (O) = 0.405 x 3.34 g

                  mass of Oxygen (O) = 1.35 g

5 0
4 years ago
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