The density of corn oil is 922 kg/(m3). If the density of water is 1.0 g/mL, will corn oil float or sink in water? A. Corn oil will float because the density of corn oil is 0.922 g/mL, which is less than the 1.0 g/mL density of water. B. Corn oil will sink because the density of corn oil is 922g/mL, which is greater than the 1.0 g/mL density of water. C. Corn oil will float because the density of corn oil is 0.000 922 g/mL, which is less than the 1.0 g/mL density of water.

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter  

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