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strojnjashka [21]
3 years ago
12

What is the final chemical equation from the following intermediate chemical equations?

Chemistry
1 answer:
gavmur [86]3 years ago
5 0

Answer:

The final chemical equation would be :

A.

P_{4}O_{6}+2O_{2}\rightarrow P_{4}O_{10}

Explanation:

This is obtained by adding the respective intermediates:

P_{4}O_{6}\rightarrow P_{4} + 3O_{2}

P_{4}+5O_{2}\rightarrow P_{4}O_{10}

P4(s) are on opposite side of arrow so cancel each other.(No P4 in final reaction)

O2(g) = 5 - 3 = 2

There are 2 O2 more on left (reactant side)

finally there are ,

P4O6 and 2 O2 on left hand side and P4O10 on Right side of the arrow

So we get

P_{4}O_{6}+2O_{2}\rightarrow P_{4}O_{10}

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Complete this equation for the dissociation of na2co3(aq). omit water from the equation because it is understood to be present.
Elanso [62]
Note that we are omitting the water.

So, sodium carbonate will basically dissociate into positive sodium ions and negative carbonate ions based on the following equation:
 <span>Na2CO3 → 2 Na(+) + CO3(2-)
</span>
If we took water into consideration:
Sodium carbonate will dissociate in water forming carbonic acid and sodium hydroxide. Since sodium hydroxide is a strong base, therefore, it will then neutralize the gastric acid, thus, acting as an antacid.
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3 years ago
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Which of the following is a non polar molecule ?
lubasha [3.4K]

N2 is non polar because electronegative of both the atoms are same and N2 also have linear shape

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3 years ago
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It can be from volcanic ash, or from eroded material transported by rivers or wind.
8 0
3 years ago
Mass of CuSO4● XH2O (g) = 1.6 grams BEFORE HEATING
Leokris [45]

0.06105 moles is the number of moles of water lost.

<h3>What is molar mass?</h3>

Molar mass is defined as the mass in grams of one mole of a substance.

Given data:

Mass of water = 1.1g

Molar mass water = 18.016 g/mol

Moles of water =?

These quantities are related by the following equation;

Moles = \frac{Mass}{Molar \;mass}

Substituting the values of the quantities and solving for moles, we have;

Moles =  \frac{1.1 }{18.016} = 0.06105 moles.

Hence, the 0.06105 moles is the number of moles of water lost.

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brainly.com/question/12127540

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7 0
2 years ago
At Jim's auto shop, it takes him minutes to do an oil change and minutes to do a tire change. Let be the number of oil changes h
Juli2301 [7.4K]

Answer:

The total time that Jim needs to change x oil changes and y tire changes is less than 180 min.

The time needed for x oil changes is 12 * x.

The time needed for y tire changes is 18 * y.

The total time is the sum of the above times and needs to be less than 180 that is

12 * x + 18 * y < 180 divide both sides of equation by 6

12/6 * x + 18/6*y < 180/6

2*x + 3*y < 30

2*x < 30 - 3*y divide both sides by 2 to get the inequality for x

x < 30/2 - 3/2*y = 15 - 1.5 y < 15 that is x < = 15

2*x + 3*y < 30

3*y < 30 - 2*x divide both sides by 3 to get the inequality for y

y < 30/3 - 2/3 *x = 10 - 2/3*x < 10 that is y < = 10

Also we can write x + y < x+ 3/2 * y < 15.

Explanation:

Jim's can do not more then 5 oil changes and not more then 10 tire changes or all together she can do not more then 15 total of oil and tire changes.

5 0
3 years ago
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