Which are true statements about reactions? check all that apply.
a. in a chemical reaction, the nucleus is breaking apart.
b. in a chemical reaction, bonds between atoms break apart.
c. in a chemical reaction, electrons are given, taken, or shared.
d. chemical reactions produce much more energy than nuclear reactions.

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

How is the atomic number of a nucleus changed by alpha decay

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?