What is the electron configuration of oxygen?

Is the ccl3 - molecule polar or nonpolar? the molecule is nonpolar if the net molecular dipole moment is zero. the molecule is polar if the net molecular dipole moment is not zero?

What mass of HCl is contained in 45.0 mL of an aqueous HCl solution that has a density of 1.19 g cm-3 and contains 37.21% HCl by mass?

If an element has 12 protons and 17 neutrons, how many electrons must it have?

Explain why a coin is able float on top of the water

How many grams of Cl2 are consumed to produce 12.0 g of KCl?

What is a precipitate? It is a liquid that forms from solution during a chemical reaction. It is a reactant that forms from solution during a chemical reaction. It is a solid that forms from solution during a chemical reaction.

The electron configuration for an atom is 1s22s22p2. How many electrons does the atom have? 4 2 6 5

When a piece of sodium carbonate reacts with dilute HCl, a gas X is produced. When gas X is passed through lime water then the solution turns milky and a white precipitate Y is formed a. Write the chemical formula of X, Y and (3) b.

Would precipitation occur when 500 mL of a 0.02M solution of AgNO3 is mixed with 500 mL of a 0.001M solution of NaCl? Show your work.

What compound is always part of an aqueous solution?