<span>disproportionation is a type of redox reaction in which an element can undergo both oxidation and reduction.
Let's take a look at the choices:
First we have the oxide ion. Oxide ion has a charge of -2 which is the lowest charge that an oxygen atom can have. Therefore, an oxide ion cannot be further reduced, so this choice is not correct.
Next we have the peroxide ion. The oxygen has a charge of -1 which means it can be further reduced. So, this choice is acceptable
Last but not least, we have the superoxide ion. The oxygen has a charge of -1/2 which means it can be further reduced. So, this choice is also acceptable.
Based on this, we have two accepted choices which are b and c.</span>
The answer is: the number of miles in 1 kilometer
You need to find the mole of glucose by using the formula n = m/Mr. Once you have found the mole you need to follow the stoichiometric process by unknown/known using the co-efficients. Then you need to multiple your answer by the known mole of glucose whoch you have previously calculated. After that you should get the mole of oxygen then you just need to transpose the equation to get m = n×Mr, substitute ypur answers in, remebering you can find your Mr via the period table, you have your answer
Answer:
The largest temperature change corresponds to the metal with the lowest specific heat
Explanation:
The metals listed in problem 2 are missing, so I will answer this question in general terms.
The formula that relate the heat absorbed or rejected from a body (q), the mass of the body (m), its specific heat (cp), and the temperature change (ΔT) is:
q = m*cp*ΔT
Given that all materials receive the same amount of heat and have the same mass then we can rewrite the formula as follows:
q/m= cp*ΔT = k
where k is some constant (the same for the 5 cases). Therefore, the greater the cp, the lower the ΔT, and viceversa.