What property can be used to determine if a sample is a pure substance or a mixture? Select one:

color

temperature

melting point

mass

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

How many moles of sulfur dioxide are produced when 4.38 moles of oxygen completely react with iron (iv) sulfide

Answer explain why it is not possible to deduce a complete order of reactivity.