Why do you think it is so very difficult

to have a direct collision between nuclei? Is it something to do with the size of the particles? Their charge?

Nutritional tables give the potassium content of a standard apple (3 apples/lb) as 159 mg. how many grams of potassium are in 4.82 kg of apples?

Which pH value would a very acidic solution have? a. 0 b. 6 c. 9 d. 14

Does a dilute solution contains a small amount of solute relative to the solute's solubility? True or false?

Determine the ph of 0.57 m methylamine (ch3nh2) with kb = 4.4 x 10-4 : ch3nh2 (aq) + h2o (l) ⇌ ch3nh3 + (aq) + oh - (aq)

Distinguish between polar and nonpolar molecules.

What element is likely to form an ionic compound with chlorine?

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.