Alion is a heterotroph, what a type of organism is it

A heterotroph is an organism that can not synthesize its own food this means that it must eat in order to sustain itself for example humans are also heterotrophs. The opposite of this would be autotrophs such as plants and algae

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

a chemical change results in a new substance being formed; whereas a physical change will result in a different state of matter

explanation: