Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions:

Zn:2+

Al:3+

Cl:1-

S:2-

What is subshell and why do we use it if we have main shells already

Consider the chemical equation in equilibrium. CH4 (g) + H2O (g) CO (g) + 3H2 (g) What will happen to the equilibrium of this reaction if the pressure is increased? A. The equilibrium will shift to the left to favor the reverse reaction. B.

How come the periodic table was invented?

Into a mixer is placed 1.0 kg of sugar solution initially containing 2.3% sugar, and the rest water. how much dry sugar must be added to withdraw a solution that is 18.0% sugar?

What is the density of lead if a piece of Lead 1 cm by 20 cm by 30 cm has a mass of 6800 grams

What compares a law and a theory?

Explain what domain would best be represented by the "?" in the diagram. A) Eukarya because the organisms are all eukaryotic. B) Eukarya because the organisms are all prokaryotic. C) Bacteria because some of the organisms are autotrophs.

If you are eating a hamburger, it is an example of a consumer eating another consumer. a) true b) false

What mass of NaNO3 is needed to make 3.5 L of 2.2 M solution? (Na = 23.0g, N=14.0g, O=16.0g) Explain in steps

In which group do all atoms have seven valence electrons in the ground state?