What is the name given to an alloy made from the two metals found in a penny?

It is possible to determine the ionization energy for hydrogen using the Bohr equation. Calculate the ionization energy for an atom of hydrogen, making the assumption that ionization is the transition from n=1 to n=infinity. A. - 2.18 x 10-18 J B.

Consider the following intermediate chemical equations. NO (g) + O (g) - - > NO2 (g) + O2 (g) ΔH1 = - 198.9kJ 3/2 O2 (g) - - >) 3 (g) ΔH2 = 142.3kJ O (g) - - >1/2 O2 (g) ΔH3 = - 247.

The molecular formula for Vitamin C is C6H8O6. What is the empirical formula?

Susan needs to measure and heat the chemical she wants to use in an experiment with a graduated cylinder. Which graduated cylinder is suitable for use? A) Plastic cylinder B) Glass cylinder C) Metal cylinder

A student put a bottle of water and a can of sugary soda in freezer to chill quickly. The water was frozen but the sod a was not explain why

What pressure (in atm) will a sample of o2 gas occupy at 100.0 ml, if o2 has a volume of 25.00 ml at 2.0 atm?

What happens when francium and nitrogen are mixed

Which type of chemical reaction occurs in 2KClO3 Right arrow. 2KCl + 3O2

An electrochemical cell is constructed using two half-cells: Al (s) in Al (NO2) 3 (aq) and Cu (s) in Cu (NO3) 2 (aq). The two half cells are connected by a KNO3 salt bridge and two copper wires from the electrodes to a voltmeter.

7. If you fill a balloon with 5.2 moles of gas and it creates a balloon with a volume of 23.5 liters, how many moles are in a balloon at the same temperature and pressure that has a volume of 14.9 liters