How does the energy in each trophic level of an energy pyramid compare to the energy in the preceding level? A. It has about 20% of the energy from the level below it.
OB. It has about 5% of the energy from the level below it.
O c. It has about 10% of the energy from the level below it.
OD. It has about 15% of the energy from the level below it.

9. write the chemical equation for the following word equations. include symbols for physical states in the equation. a. solid zinc sulfide + oxygen gas -> solid zinc oxide + sulfur dioxide gas b. aqueous hydrochloric acid + aqueous barium hydroxide -> aqueous barium chloride + water

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?