Question 3 (1 point) The chemical formula for sodium citrate is Na 3C 6H 507. Which of the following
statements is true?
Sodium citrate is a compound with a total of 21 atoms.
Sodium citrate is a compound with a total of 4 atoms.
Sodium citrate is an element with a total of 21 atoms.
Sodium citrate is a compound with a total of 21 atoms, each of a different
element.

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

What is the most common form of matter in the universe

If i had 2 m naoh solution, what does the 2 m stand for? 2 molar, but 2 of a solute in 1