The heat is the required energy.
Molar mass Mg(OH)2 = <span>58.3197 g/mol
Number of moles:
45.7 / 58.3197 => 0.7836 moles
Volume = 1087 / 1000 => 1.087 L
Therefore:
Molarity = moles / volume
Molarity = </span>0.7836 / 1.087
=> 0.7208 M
Answer:
Public water supply and sanitation in the United Kingdom is characterised by universal access and generally good service quality[citation needed]. A salient feature of the sector in the United Kingdom compared to other developed countries is the diversity of institutional arrangements between the constituting parts of the UK (England and Wales; Scotland; and Northern Ireland), which are each described in separate articles, while this article is devoted to some common issues across the United Kingdom.
Answer:
Six electrons are transferred in the formation of Al₂O₃.
Explanation:
Aluminium metal and Oxygen react to form Al₂O₃ as,
2 Al + 3/2 O₂ → Al₂O₃
Oxidation number of Al on left hand side is zero, while than on right hand side in Al₂O₃ is +3. Means it has lost 3 electrons per one atom and six electrons per two atoms. Also, the oxidation number of O at left hand side in O₂ is zero, while that in Al₂O₃ it is -2 per atom and -6 per 3 atoms.
So, two Al atoms have lost 6 electrons and 3 O atoms have gained six electrons.