Express 450 x 10-9 m (wavelength of blue light) in decimal notation (i. e., express the number without using scientific notation).

The grooves or folds of the brain are 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

Stage in which a typical star has completely stopped fusion