Find oxidation numbers for the following:

Cl:

Be:

Al:

Ca:

O:

How many grams are in 3.5 moles BaSO4?

Lemonade consists of several substances that are not chemically combined so lemonade is classified as a

When traveling from oxygen to sulfur to selenium, through this group in the periodic table, what is changing?

Butane, C4H10, is a component of natural gas that is used as fuel for cigarette lighters. The balanced equation of the complete combustion of butane is 2 C4H10 (g) + 13 O2 (g) → 8 CO2 (g) + 10 H2O (l) At 1.

Carbon-12 is the most common isotope of carbon. It has 6 protons, 6 neutrons, and 6 electrons. Of its 6 electrons, 4 are valence electrons. How many covalent bonds can a carbon atom form? A. 1 B. 4 C. 6 D. 12

An observation which requieres measuresment is called

In the equation Mg (s) + O2 (g) → MgO (s) what is the reactant?

What ancient languages were used to develop the names of some elements?

What determines the color of the egg shell?

What is the purpose of adding alum in the water treatment process?