The radius of an atom of gold (Au) is about 1.35 Å. How many gold atoms would have to be lined up to span 5.5 mm?

If the wavelength of a wave stays the same, what happens when the wave period increases? a. increase in wave speed c. decrease in wave speed b. increase in wave height d. decrease in wave height

What temperature units do scientists commonly use?

Which process can produce either rain or snow

A pocket of gas is discovered in a drilling operation. The temperature of the gas is 498º C and its pressure is 13.8 atm. At the surface, the same gas has a volume of l8.0 L at 29º C and 2.00 atm.

What allows us to stand upright and keeps us from falling through the ground?

What is the standard cell potential (E°cell) for the voltaic cell based on the reaction below? Sn2 + (aq) + 2Fe3 + (aq) → 2Fe2 + (aq) + Sn4 + (aq)

G oil of wintergreen, c8h8o3 is prepared when methanol, ch3oh, is reacted with salicylic acid, c7h6o3. what is the percent yield of a reaction in which 15.3 g of oil of wintergreen is collected after 16.

How can a neutral atom become a positively-charged particle?

Mineral oil can be used in place of mercury in manometers when small pressure changes are to be measured. What is the pressure of an oxygen sample in mm of mineral oil if its pressure is 28.5 mm Hg? (d of mineral oil = 0.88 g/mL; d of Hg = 13.

To identify an unfamiliar organism, you could use a field guide and an