Acertain metal hydroxide, m(oh)2, contains 32.8% oxygen by mass. what is the identity of the metal m? enter the full name of the element.

Solution:[tex]Let the molar mass of metal M is 'a',\\ \rn(so)\\ \frac{M_{o}}{2M_{H}+2M_{o}+a}        =\frac{2.16}{2.1+2.16+a} =0.328\\ By simple algebric calculation. We get,\\         a=63.56g/mol\\ \rn(Now,)\\

We have to confirm which metal has the molar mass of 63.56g/mol. By using periodic table we have to find it the we get it is Copper(Cu).

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.