Another factor that could affect photosynthesis is the amount of sunlight that the plants receive. Recall that plants that don't get enough sunlight can become leggy and weak. Look at the chart and review how much sunlight the greenhouse received. 3. Is the amount of sunlight exposure the main issue within the greenhouse? Explain.

For the following, determine the type of reaction and then give products.

Which of the following happens during cell division? (a) energy is created (b) waste is eliminated (c) carbon dioxide is released (d) damaged cells are replaced

Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)