a mixture of baking soda is prepared in water. the mass of this mixture is 225g. the original mass of baking soda was 50g. what is the original mass of water to which the baking soda was added?
a) 50g
b) 175g
c) 225g
d) 275g

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

Oxidation-reduction reactions (often called "redox" for short) are reactions that involve the transfer of electrons from one species to another. oxidation states, or oxidation numbers, allow chemists to keep track of these electron transfers. in general, one element will lose electrons (oxidation), with the result that it will increase in oxidation number, and another element will gain electrons (reduction), thereby decreasing in oxidation number. the species that is oxidized is called the reducing agent or reductant. the species that is reduced is called the oxidizing agent or oxidant. to sum up: oxidation = increase in oxidation state = loss of electrons = reducing agent reduction = decrease in oxidation state = gain of electrons = oxidizing agent part a which element is oxidized in this reaction? fe2o3+3co→2fe+3co2 enter the elemental symbol. view available hint(s) is oxidized part b which element is reduced in this reaction? 2hcl+2kmno4+3h2c2o4→6co2+2mno2+2kcl+4h2o enter the elemental symbol. view available hint(s) is reduced