The dissociation of calcium carbonate has an equilibrium constant of at 800. °C. a What is for the reaction? = Correct Recall that and are related by the equation: The equation: has . Note that . Applying the relationship: b If you place 28.5 g of in a 9.77-L container at 800. °C, what is the pressure of in the container? Pressure = atm Correct For the dissociation of calcium carbonate: c What percentage of the original 28.5-g sample of remains undecomposed at equilibrium? Percentage = %

What’s the scientific notation for the number 6,840,000,000

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 much heat is added if 0.814g of water increase in temperature by 0.351 degree c?