What are pioneer species?

a. Species which are the first to colonize previously biodiverse ecosystems.

b. The last species to appear in an area after a disturbance.

c. Only species that live in a climax forest.

d. None of these answers are correct.

Inside the room the air is often warmer near the ceiling than near the floor. Which of the following accounts for the difference in temperature? A. radiation B. insulation C. convection D. conduction

The formulas for ethane, ethene, and ethyne are C 2 H 6 C2H6, C 2 H 4 C2H4, and C 2 H 2 C2H2, respectively. Rank these compounds by the length of the carbon-carbon bond.

A student noticed while doing the neutralization experiment that the calorimeter kept getting warmer. how would this error affect the final calculation for the δhneut of each reaction? would it be overestimated, underestimated or remain unaffected?

How many hydrogen grams can be obtained if a) m (H2) = ? m (Ca) = 10g b) m (CaH2) with H2O

Atoms of the least reactive elements tend to have

How might we create the best possible solution to a problem?

A runner at a track meet completes exactly one lap around a 400 m track. what is the distance? what is the displacement?

Match the following with their correct molecular weight. 2-butanone Propyl acetate 4-methyl-2-pentanone Butyl acetate Methanol Ethanol A. 46.07 g/mol B. 116.16 g/mol C. 102.13 g/mol D. 100.16 g/mol E. 32.04 g/mol F. 72.11 g/mol

Hi how are you doing today

Explain how using dimensional analysis could have prevented this crash