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Keith_Richards [23]
2 years ago
9

Predict the outcome of this reaction. Balancing doesn't matter. Mg + H2O -->

Chemistry
1 answer:
ELEN [110]2 years ago
7 0

Answer:

MgO + H₂

Explanation:

The products of reaction is MgO  and hydrogen gas.

This is a single displacement reaction.

In this reaction, the possibility of the reaction is determined by position of the atoms on the activity series.

 Mg is higher than H on the activity series, so it is more reactive and it then displaces the hydrogen in water;

            Mg + H₂O → MgO + H₂

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. Using the pH scale below what would be the pH value of an Acid? *
earnstyle [38]

Answer : The pH value of an acid is below 7.

Explanation :

pH : It is defined as the negative logarithm of hydrogen ion or hydronium ion concentration.

Mathematically,

pH=-\log [H^+]

When the pH less than 7 then the solution is acidic and the concentration of hydrogen ion is greater than hydroxide ion.

When the pH more than 7 then the solution is basic and the concentration of hydrogen ion is less than hydroxide ion.

When the pH is equal to 7 then the solution is neutral and the concentration of hydrogen ion is equal to the hydroxide ion.

Hence, the pH value of an acid is below 7.

6 0
3 years ago
What volume of a 5.00M solution of hydrochloric acid contains 8.00mol of HCl?
rjkz [21]

Answer:

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Explanation:

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7 0
3 years ago
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Tju [1.3M]

Answer: The answer is D.

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2 years ago
Which if the following numbers in your personal life are exact numbers?
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4 0
2 years ago
How much energy is required to vaporize 14.27 grams of water at its<br> boiling point? *
laila [671]

Energy required to vaporize : 32.3 kJ

<h3>Further explanation </h3>

The heat to change the phase can be formulated :

Q = mLf (melting/freezing)

Q = mLv (vaporization/condensation)

Lf=latent heat of fusion

Lv=latent heat of vaporization

Mass of water = 14.27 g

Latent heat of vaporization ( boiling point of 100 ºC) :  2260 J/g

Energy required :

\tt Q=m.Lv\\\\Q=14.27\times 2260\\\\Q=32250.2~J\approx 32.3~kJ

6 0
2 years ago
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