An atom nucleus contains 28 protons and the atom has a mass number of 60. how many neutrons does this atom contain? how many electrons? what is the identity of the atom?

An empty plastic bottle is sealed in a cool room and then moved to a very hot room. What can best be stated about the air pressure inside the bottle when the bottle reaches room temperature? A.

The temperature of 200 mL of gas originally at STP is changed to - 25 Celsius at constant volume. Calculate the final pressure of the gas in torr

The electronegativity of germanium is 1.8; that of bromine is 2.8 on the Pauling scale. Will they form an ionic bond?

What is the vapor pressure of water at 75°C?

Which difection do most weather systems move in the united states

Which elements are present in sugars?

How does Q compare to Keg? O Q> Keq O Q< Kea OQ = Keg

What is the mass (in grams) of 9.09x10^24 molecules of methanol (CH3OH) ? AND How many moles of N are in 0.183g of N2O?

What are the basic building blocks of matter? A) molecules B) atoms C) electrons D) compounds

How does an atom with too few neutrons relative to protons undergo radioactive decay? * by converting proton to a neutron by converting a neutron to a proton by emitting an alpha particle