Which of the following is an example of a compound?

H2O

Na

Cl

O

Two gas jars are connected to each other, but they are separated by a closed valve. One gas jar contains oxygen, and the other is empty. What will happen when the valve is opened?

Predict whether or not a precipitate forms upon mixing 175.0 ml of a 0.0055 mkcl solution with 145.0 ml of a 0.0015 m agno3 solution. identify the precipitate, if any.

When an atom is chemically stable how many electrons are in its outer energy later?

What atomic or hybrid orbitals make up the sigma bond between C2 and Cl in dichloroethylene, CH2CCl2? (C2 is the second carbon in the structure as written.) orbital on C2? orbital on Cl? What is the approximate C1-C2-Cl bond angle?

In process in which An animal's cells use oxygen and digested food molecules to release the energy in food is called

Calculate the energy for one mole of photons (an einstein) for light absorbed at 6.90 * 102 nm.

What is A for ClO3, the chlorate ion?

The pH of a solution is 4.3. What is the pOH?

Always report their observations and results truthfully

At ph 1.8, dichloroacetic acid is 8% dissociated. what is the pka for dichloroacetic acid?