Atemplate of a venn diagram representing common and differentiating characteristics of covalent and lonic bonds is shown. ionic bond covalent bond which of the following characteristics can be written only in space a? formed between atoms of similar electronegativities formed between two metal atoms mostly found on the left of the periodic table formed between two non-metal atoms mostly found on the right of the periodic table formed between an atom that tends to lose electrons and an atom that tends to gain electrons

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.

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