Meiosis makes four blank cells A) diploid B) haploid C) metabolic D) prokaryotic

haploid

Explanation:

Meiosis is a type of cell division that occurs during the process of formation of gametes particularly sexually reproducing organisms.

Gametes are reproductive, sex cells that are haploid (having half the number of chromosomes as their parent cell).

Thus, during meiosis a diploid parent cell gives 4 haploid daughter cells, called gametes (such as eggs and sperms).

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