10 POINTS What is most likely the amount of energy available at a trophic level of primary consumers if the amount of energy available to producers in that food web is 2,000 kilocalories?

200 kilocalories
2,000 kilocalories
2,500 kilocalories
3,000 kilocalories

Using the periodic table, complete the table to describe each atom. type in your answers

The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90

Astring vibrates with a frequency of 10 hz. why can't a person hear the sound waves produced by the vibrating string, no matter how large the amplitude of the waves? out! this is homework and due tomorrow! you so much!