Sodium an alkali metal and chlorine a halogen are both in period 3? of the periodic table. Which element has a higher ionization energy? Explain

Describe the arrangement of molecules in liquid water and in ice?

A chemist prepares a solution of copper (II) fluoride by measuring out of copper (II) fluoride into a volumetric flask and filling the flask to the mark with water. Calculate the concentration in of the chemist's copper (II) fluoride solution.

For the reaction: 6 Li (s) + N2 (g) → 2 Li3N (s) Determine: a) the mass of N2 needed to react with 0.536 moles of Li. b) the number of moles of Li required to make 46.4 g of Li3N. c) the mass in grams of Li3N produced from 3.65 g Li.

Explain how the combustion of coal results in acid rain

An element X - 24 is a radioactive isotopes used to diagnose restricted blood circulation. How many electrons, protons and neutrons are there in this isotopes if its valency shell electronic is 3s^1?

If you made 6 moles of NO2 How many grams of N2 did you use N2+2O2> 2NO2

At what temperature in Kelvin will 0.0965 moles of chlorine exert a pressure of 2.02 atm at a volume of 0.652 L?

How can a mixture of nails and sawdust be most efficiently separated into its component parts? A:By cooling it B:By filtering it C: By using a magnet D:By using a catalyst

A 10.0 L balloon contains helium gas at a pressure of 655 mmHg. What is the new pressure, in mm Hg, of the helium gas if the volume is 20.0 L and if there is no change in temperature or quantity? 6550 mmHg 1000 mm Hg 1310 mmHg 300 mm Hg

Restate Newtons first law in terms of acceleration