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kirill [66]
3 years ago
12

The cl-cl bond will react more readily, because it has a

Chemistry
1 answer:
bekas [8.4K]3 years ago
5 0

Answer: bond energy

Explanation:

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Density of iron is 7.8 g/cc. How much would 10 cc of iron weigh?
Elena-2011 [213]

Answer:

<h3>The answer is 78 g</h3>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

volume = 10 cc

density = 7.8 g/cc

So we have

mass = 7.8 × 10

We have the final answer as

<h3>78 g</h3>

Hope this helps you

4 0
3 years ago
How many moles of O2 are needed to burn 2.56 moles of CH3OH?
lukranit [14]

Answer:

n_{O_2}=3.84molO_2

Explanation:

Hello!

In this case, since the combustion reaction of methanol is:

CH_3OH+\frac{3}{2} O_2\rightarrow CO_2+2H_2O

In such a way, since there is 1:3/2 mole ratio between methanol and oxygen, we can compute the moles of oxygen that are needed to burn 2.56 moles of methanol as shown below:

n_{O_2}=2.56molCH_3OH*\frac{\frac{3}{2}molO_2}{1molCH_3OH} \\\\n_{O_2}=3.84molO_2

Best regards!

6 0
3 years ago
Suppose that Biuret reagent turns purple when it is added to an unknown substance. What can you conclude about the substance?
Oksi-84 [34.3K]

Answer:

the unknown substance is a protein

Explanation:

The biuret test is one of the tests for proteins. It  can be used to  detect peptide linkages. The biuret test is carried out in an alkaline solution. A coordination complex is formed  leading to the appearance of a  violet color.

Summarily, the biuret method is a colorimetric technique used to test for proteins and peptides.  It involves the formation of  a purple (violet) complex of Copper salts in alkaline solution.

Hence when the biuret reagent is added to an unknown substance and it turns purple, the unknown substance is a protein

6 0
3 years ago
How many molecules are in 1 mol of the chemical equation shown above
aivan3 [116]
There's 6.022×10^23 particles in 1 mole of anything

like there is 1000 grams in 1 kilogram of anything
7 0
3 years ago
Donna and Ellis have been married for over 30 years which of the following is likely to be most important in their relationship
OleMash [197]
30 because it is the highest number of marriage
8 0
3 years ago
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