An atom of aluminum in the ground state and an atom of gallium in the ground state have the same

(1) mass

(2) electronegativity

(3) total number of protons

(4) total number of valence electrons

A gas sample occupies 8.77 L at 20 degrees Celsius. What is the pressure in atm, given that there are 1.45 moles of gas in the sample?

Which is the average kinetic energy of particles in an object? A:temperature B : potential energy C:energy conservation D:work

Five unknown compounds are added to water. four of the compounds go into solution while one does not. what property does water possess that allows these four compounds to dissolve? why might the fifth compound not dissolve?

The molar mass of SO3 is?

In the operation of the Heat Transfer Service Unit, one of the variables you can control is the rate of cooling water flowing against the cold side of the metal under study.

What resources that we use everyday

The density of aluminum is 2.7 g/ml. if the aluminum has a volume of 10 ml, what is the mass of the aluminum?

A. List three things that your body strives to keep constant. (example metabolism) B. Describe one way in which each of the items you listed in Part A could be at least temporarily disrupted from equilibrium.

Part I Complete and balance the following equation: NO-2 (aq) + Al (s) →NH+4 (aq) + AlO-2 (aq) (basic solution)

A 425.00-gram sample of a compound decomposes into 196.01 grams of carbon, 41.14 grams of hydrogen, 130.56 grams of oxygen, and 57.29 grams of silicon. Experiments have shown the compound has a molecular weight of 208.329.