II 0 1
Three examples of home insulation are shown in Figure 1.
Figure 1
al
n
cavity wall insulation
loft insulation
hot water tank jacket
0 1 .4
Suggest one reason why people are now more aware of the importance of good insulation in the home.
Your ​

i think the answer is terrae but not 100 percent sure. ▓▬▬ §

explanation:

0.07 g/cm³

1.37 g/cm³

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