When an element exist in nature by itself, it must have a charge of

Assign oxidation states to each atom in each of the following species.? 1. CuC2 the oxidation states of Cu, Cl 2. CH4 the oxidation states of C, H 3. Cr2O7^2- the oxidation states of Cr, O 4. HCO3^- the oxidation states of H, C, O

Indepent variable in a sentence

Calculate the formula mass of each compound h2s2

What is an example of a physical change

9 Given the balanced equation representing the reaction between methane and oxygen:CH4 + 2O2 → CO2 + 2H2O According to this equation, what is the mole ratio of oxygen to methane?

How much heat (in kJ) is evolved in converting 1.00 mol of steam at 160.0∘C to ice at - 50.0∘C? The heat capacity of steam is 2.01 J/g⋅∘C and of ice is 2.09 J/g⋅∘C.

When a polar molecule causes a charge redistribution in a nonpolar molecule, what are the molecules of the mixture most likely experiencing?

How many moles are in 458 grams of Na2SO4

What are the types of radioactive rays that can be produced during a radioactive decay?

Why is it important that acids and bases have different properties?