Answer:
Mg + 2H₂O —> Mg(OH)₂ + H₂
Explanation:
Mg + H₂O —> Mg(OH)₂ + H₂
The above equation can be balance as illustrated below:
Mg + H₂O —> Mg(OH)₂ + H₂
There are 2 atoms of H on the left side and a total of 4 atoms on the right side. It can be balance by writing 2 before H₂O as shown below:
Mg + 2H₂O —> Mg(OH)₂ + H₂
Now, the equation is balanced
****Check***
Element >>>>> Reactant >>>> Product
Mg >>>>>>>>>> 1 >>>>>>>>>>> 1
H >>>>>>>>>>> 4 >>>>>>>>>>> 4
O >>>>>>>>>>> 2 >>>>>>>>>>> 2
The concentration of Hydrogen chloride in g per dm³ = 64 g/dm³
<h3>Further explanation</h3>
The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight / volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent
A solution of hydrochloric acid contains 3.2 g of hydrogen chloride in 50 cm³, so the concentration :
For the concentration of Hydrogen chloride in g per dm³ :
the answer is d
because the reverse reaction is slow
The pools stay cool because of the Certain amount of water that is in the pool.For Example:If were to go to a Water Park,the water is cool there because it's alot of water.I would take forever for a huge Water Park's water to get hot.
Hope this Help. :)
Greetings!
The amount of a substance that can dissolve in a liquid (at a any temperature) is called the solubility of the substance, (in this case water).
<em>Hope this helps!</em>