Which of these events is likely to have caused the mass extinction of the dinosaurs? A. An increase in Earth's overall temperature

B. A large volcanic eruption on nearby islands

C. The fallout of a meteor colliding with Earth's surface

D. Rising sea levels flooding low-lying coastlines

What produces wave a)sound b) heats c)transfer of energy d)vibrations

Given the data below for the reaction, 2 a + 2 b + 4 c => d + e + 3 f, the reaction is fill in the [ ] order in a, fill in the [ ] order in b, fill in the [ ] order in c and fill in the [ ] order overall. (use the words "first, second, third, fourth" to fill each blank)experimentinitial conc of a, mol/l initial conc of b, mol/l initial conc of c, mol/l initial rate, mol/l. s1 0.1 0.1 0.2 2 x 10-32 0.2 0.3 0.2 6 x 10-33 0.3 0.1 0.2 2 x 10-34 0.4 0.3 0.4 1.2 x 10-2

What is the mass of naoh that would have to be added to 500 ml of a solution of 0.20 m acetic acid in order to achieve a ph of 5.0?