Which are the types of soil?

Explanation:

there are three basic types of soils sand silt and clay . But most soils are composed of a combination of the 3 different types.

1) Sandy soil

2) loamy soil

3) clay soil

Explanation:

There are 3- basic kinds of soil

tracks, burrows, eggshells, nests, tooth marks, or gastroliths

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