8 g of a mixture of iron and iron (II) oxide was dissolved in excess sulfuric acid. 2.8 liters of hydrogen were extracted. Determine the
composition of the mixture​

How manyatoms of mercury are in 1.4214e+1 ml sample

The pressure in a fluid is affected by which characteristics of that fluid

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space