Descibe the probable causes of two mass extinctions.

How many carbon atoms are there in 5.25 mol of C2H6?

What depends on altitude and sunlight

Which base would not effectively deprotonate acetylene? (ch3) 2nli ch3och2mgbr lioch3 ch3li kh?

A burner on an electric range has a heat capacity of 345 J/c. what value of q, in kJ, is produced when the burner cools from a temperature of 467 C to room temperature of 23 C?

Calculate the energy of a quantum of radiant energy with a frequency of 5.00x1011/s

A rigid cylinder with a movable piston contains a 2.0-liter sample of neon gas at STP. What is the volume of this sample when it's temperature is increased to 30 degrees Celsius while its pressure is decreased to 90 kilopascal

Write a speech aimed at year 7 to explain why some metals lose their shine over time but gold does not.

How many moles of co2 could fit in a 475 ml bag at - 22c and 1.125 atm?

How mant atoms are in 3N2

The type of nuclear decay an unstable nucleus will undergo depends on its ratio of neutrons to protons. The radioisotope cobalt-65 has a ratio of neutrons to protons of 1.41, which is too high for a nucleus of this size.