Answer:
3.47 mol MnSO4
Explanation:
54.94 + 32.07 + (16 × 4) = 151.01g/mol MnSO4
542.32g / 151.01g/mol = 3.47 mol MnSO4
Answer:
The correct option is the A
Explanation:
Like oxygen is more electronegative than hydrogen, it attracts electrons stronger than hydrogen. Therefore the two covalent bonds are polar.
The option b is incorrect because if oxygen and hydrogen had similar electronegativities, they would form no-polar bonds.
The option c is incorrect because oxygen is more electronegative than hydrogen (you can check that in a periodic table).
The options d and e are incorrect because the molecular size or hydrophilic don't influence the type bond.
Answer:
All of these
Explanation:
In MnO:
mass of Mn = 55 g (as 1 mole of Mn weighs 55 g)
mass of O = 16 g (as 1 mole of O weighs 16 g)
The mass percent of metal Mn= 
In MnO2:
mass of Mn = 55 g
mass of O = 2*16 = 32 g
The mass percent of metal Mn=
In Mn2O3:
mass of Mn = 2*55 = 110 g
mass of O = 3*16 = 48 g
The mass percent of metal Mn=
In all the cases the mass percent of metal is greater than 50.
Explanation:
ethanol is alcohol so i presume it would burn but im not sure
