Resuelve los siguientes ejercicios. 1. La maestra Ana tiene 24 cuadernos y el maestro Rodrigro 18 y los quieres regalar
a sus alumnos y quieren que sean la mayor cantidad ps
alumno?

the answer is d : ) have a good da

the answer is na (sodium)

answer: i dont know the answer but this might

explanation:

l

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol