Dax has been learning about chemical reactions and he now understands that chemical reactions occur at different rates. Some are very fast, while others are quite slow. Depending on the conditions, a particular reaction can happen at different rates. Describe the conditions that affect the rate of a chemical reaction.

Adozen is 1221/12 = 1.751.75 x 12 = 21therefore, 1.75 is the answer.

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.

Replicate prove reliability and validity