PLEASE HELP!! The photo shows a bungee jumper falling toward Earth.
What happens as the bungee jumper gets closer to Earth's surface?
A. Air resistance decreases
B. His mass increases
C. Gravity decreases
D. His velocity increases

D the speed increeses yhi

air resistance decrease

idk what the question is about

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