Lastly, Snape thinks we should try one more calculation. What is the retention factor if the distance traveled by the solvent front is 2.0 cm, and the distance the ion is from the solvent front is 0.20 cm? Hint: Be careful with how Snape worded this question.

0.1 is the retention factor.

Explanation:

Distance covered by solvent ,

Distance covered by solute or ion,

Retention factor is defined as ratio of distance traveled by solute to the distance traveled by solvent.

0.1 is the retention factor.

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.