How many grams are there in 4.50 moles of Ba(NO2)2?

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

Adilute aqueous potassium nitrate solution is

What must be in balance for temperatures to remain constant?