What does it take to prove a hypothesis false?

O

A. It is impossible to prove a hypothesis false

O

B. At least ten examples

O

C. One counterexample

O

D. A poorly stated question

How would temperature changes in the atmosphere enough to melt Antarctic Ice affect the hydrosphere lithosphere and biosphere

Is this a good scientific question? "Is the lifespan of snowshoe hares, which are white in the winter and brown in the summer, affected by levels of winter snowfall?" A) Yes, because the question is specific.

What are the charges of each atom now? (Sodium and Chlorine)

Calculate the volume of an object with a mass of 5.45g and a density of 65

Does a human body use neon?

What are some chemacial changes in your school?

Which of the following is an example of a double-replacement reaction? A. 3K + AlCl3à 3KCl + Al B. KOH + HBr à KBr + H2O C. CH4 + 2O2à CO2 + 2H2O D. Cu + 2H2SO4à CuSO4 + SO2 + 2H2O

Distinguish between thermal cracking and catalytic cracking

At the end of the reaction you washed the chemicals into a beaker using water. Why was it OK to use water to do this if Grignard reagents are very reactive towards water?

What happens when the electron moves from the first energy level to the second energy level? Energy is absorbed, and an emission line is produced. Energy is released, and an emission line is produced. Energy is absorbed by the atom.