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2 years ago

When methane is completely combusted in oxygen forming carbon dioxide and

Chemistry

1 answer:

Goshia [24]2 years ago

5 0

Answer:

The masses of the reactants and products are equal.

Explanation:

Hope this helps.

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The ph of a finished water from a water treatment process is 10.74. What amount of .02 n sulfuric acid, in milliliters, is requi

MAVERICK [17]

The pH of water is given to be 10.74.

This means = pOH = 14 - pH = 3.26

pOH = -log[OH-]= 3.26

[OH-] = 0.00055 M / N

The concentration of H2SO4 is given to be = 0.02 N

volume of water = 1 L

So moles of OH- = number of equivalents of OH-

= concentration X volume (L) = 0.00055 X 1 = 0.00055

So number of equivalents of H2SO4 requried = 0.00055

Hence volume of 0.02 N H2SO4 required = Moles / Molarity

= 0.00055/0.02 = 0.0275 L = 27.5 mL

3 0

3 years ago

What is the most proactive functional group in chemistry?

Vinil7 [7]

Answer:

*carboxylic acid

*other groups containing oxygen and nitrogen

* Alkenes and Alkynes

Explanation:

substances containing double ot tripple bonds are called Alkenynes

8 0

2 years ago

Alum used in cooking is potassium aluminum sulfate hydrate, KAl(SO4)2. XH2O. To find the value of X, you can heat the sample of

kolbaska11 [484]

Answer:

The answer is given below in the picture

Explanation:please check it

6 0

3 years ago

13. How many electrons are transferred in the following reaction? (The reaction is unbalanced.) Fe(s) + I'(aq) 12(s) + Fe3+(aq)

Nat2105 [25]

Answer : The correct option is, (C) 6

Explanation :

Oxidation-reduction reaction : It is a reaction in which oxidation and reduction reaction occur simultaneously.

Oxidation reaction : It is the reaction in which a substance looses its electrons. In this oxidation state increases.

Reduction reaction : It is the reaction in which a substance gains electrons. In this oxidation state decreases.

The given unbalanced chemical reaction is,

$Fe(s)+I^-(aq)\rightarrow I_2(s)+Fe^{3+}(aq)$

Half reactions of oxidation and reduction are :

Oxidation : $Fe(s)\rightarrow Fe^{3+}+3e^-$ ......(1)

Reduction : $2I^-(aq)+2e^-\rightarrow I_2$ .......(2)

In order to balance the electrons, we multiply equation 1 by 2 and equation 2 by 3, we get:

Oxidation : $2Fe(s)\rightarrow 2Fe^{3+}+6e^-$ ......(1)

Reduction : $6I^-(aq)+6e^-\rightarrow 3I_2$ .......(2)

The overall balanced chemical reaction will be:

$2Fe(s)+6I^-(aq)\rightarrow 3I_2(s)+2Fe^{3+}(aq)$

From this reaction we conclude that the electrons are getting transferred from iron to iodine and the number of electrons transferred are 6 electrons.

Hence, the correct option is, (C) 6

5 0

2 years ago

How to convert 250 in scientific notation

cricket20 [7]

In scientific notation, a number is less than ten but more than one.

Move the decimal point from 0, 250.000 <- this is the same as 250 to between 2 and 5.

I had to move two spaces.

2.5^2

I hope this helps!
~kaikers

4 0

3 years ago