When concentrated is added to, a white precipitate forms that is 38.7% Ca by mass. Write a net ionic equation representing the probable reaction that occurs.

Chemical reaction examples

What is enlightening

For the reaction PCl5 (g) + heat PCl3 (g) + Cl2 (g), what will happen when the volume is increased? A. There will not be a shift in equilibrium. B. There will be a shift toward the products. C. There will be a shift toward the reactants. D.

Explain what a polar bond is and how the electronegativities of the two atoms in the bond compare.

tank contains helium gas at 490 mm Hg, nitrogen gas at 0.75 atm and neon at 520 torr. What is the total pressure in atm? 2.1 atm 0.55 atm 1.5 atm 5.1 atm 51 atm

The atomic number of nitrogen is 7. The number of electrons a neutral nitrogen atom has is

Describe the charges of the subatomic particles by choosing the answer from the drop-down menu. Proton have a charge. Have a 0 charge. Electrons have a charge.

How did Alexander effect the people of Judah?

Is it possible for a molecule only made up of hydrogen and carbon to be polar?

Which of these represents a chemical change?