Why is maple syrup more diluted than maple sap

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

Identify the electromagnets with poles that are reversed from the electromagnet shown above

Which of the following is true about the speed of light? it depends on the wavelength.