Which occurs more often on earth? Physical or Chemical changes?

Decribe a type of renewable energy that you could use in youur home

Is weathering long term or short term and why

What was the reasoning scheme behind the following sentence: All prokaryotes lack a well-defined nucleus. The newly discovered cell has no well-defined nucleus. Therefore, the newly discovered cell is a prokaryote.

Which of the following tend to possess the same number of outer electrons? A. all molecules with the same number of atoms B. all elements within the same group C. all molecules made up of the same elements D. all elements within the same period

Method that used to separate kerosine and water?

Will a parachute slow a skydiver more at a very high altitude or a lower altitude?

Carbon monoxide is: Only found in large cities An odorless, colorless, toxic gas Healthy to breath in A danger when driving on the open highway

What is a potential benefit of fuel cell cars? increased efficiency converting gasoline to energy no recharging necessary decreased automobile cost larger engines

Water is a great solvent. For example, it causes ionic compounds like sodium chloride (table salt) to dissociate. One of these reasons that water does is because it is polar molecule.

For most compounds with a single keto group in the molecule, equilibrium favors the keto form over the enol form of the compound. this is due largely to what?