4. A sample of a new plastic has a mass of 245 grams. The sample is 22.5 mm long, 4.2 cm wide and 5.1 cm deep. If the volume is the length x width x height, what is the density
of the plastic in g/cm”? Show your work. (Hint - watch the units)

How does litmus paper indicate an acid?

Look at the bean data from days 4–6. use these data to explain how natural selection changed the number of dark red walking beans over time. writing part

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