The solubility product constant (Ksp) of Ca(OH)2 at 25°C is 4.42 x 10-5. A 500 mL of
saturated solution of Ca(OH)2 is mixed with an equal volume
of 0.4 M NaOH. What mass of Ca(OH)2 is precipitated out?

او از​

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 happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.