The Balance Chemical equation is as follow,
2 Mg (s) + O₂(g) → 2 MgO(s)<span> + 72.3 kJ
According to this equation,
2 Moles of MgO formation involved = 72.3 kJ of Heat
So,
5 Moles of MgO formation will involve = X kJ of Heat
Solving for X,
X = (5 Moles </span>× 72.3 kJ) ÷ 2 Moles
X = 180.75 kJ of Heat
Answer:
Clouds form when the invisible water vapor in the air condenses into visible water droplets or ice crystals. For this to happen, the parcel of air must be saturated, i.e. unable to hold all the water it contains in vapor form, so it starts to condense into a liquid or solid form.
Explanation:
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<h2>Answer:</h2>
An Aquifer
<h2>Explanation:</h2>
An aquifer is an underground layer of water-bearing permeable rock or unconsolidated materials like gravel, sand, or silt. The most common aquifers are unconsolidated sands and gravels, permeable sedimentary rocks such as sandstones or limestones and heavily fractured volcanic and crystalline rocks. All of these aquifers can be used for the purification of groundwater contaminated by sewage from a ruptured septic tank.
Electrons are the only thing that can freely move from one object to another object. By rubbing the silk cloth on the glass, since the net charge becomes positive, that means that electrons were removed. So answer is : electrons removed.
Answer:
Polling is a method used for the purification of copper or tin which contains oxide impurities