The addition of nutrition to water by human activity is called? ?

Indicate whether the specified alkyl halides will form primarily substitution products, only elimination products, both substitution and elimination products, or no products when they react with sodium methoxide. 1-bromobutane 1-bromo-2-methylpropane 2-bromobutane 2-bromo-2-methylpropane

The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles

Which item is most likely part of the safety contract