Propane tanks that are used on BBQ grills contains large amount of propane gas. Which explanation supports why gas can be easily compressed. a. Gas has a definite volume

b. Gas particles are far apart so they are easy to compress together.

c. Gas particles takes the shape of the container so it can easily compress together.

b. Gas particles are far apart so they are easy to compress together.

Explanation:

they are both synthetic elements

explanation:

d

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