Explain, in terms of electronegativity difference, why the bond in a molecule of HF is more polar than the bond in a molecule of HI.

If, after heating, the solid has a molar mass of 208 g/mol and a formula of XY, what is the formula of the hydrate?

What makes a compound a strong acid or base

2K2SO4 < - - - how many atoms are there in this formula?

Which of the following elements has the lowest electronegativity? C F Li O

What does conserving mass mean in a chemical equation A. There are more of each type of atom on the reactant side than on the product side. B. There is equal number of each type of atom on the reactant and product side. C.

List the five major pollutants in the United States

What mass of MgCl2 was produced from 5.87 of Mg (OH) 2 reacting with 12.84 g of HCl? Identify the limiting and the excess reactants.

Use a Punnett square to predict the cross of a homozygous tall parent with a homozygous short parent, if tall is dominant over short. What will be the phenotype of the offspring described in this example. Select one: a. some tall some short b.

Write the mathematical expression that allows you to solve for the oh - concentration in water when you know only the h3o + concentration.

The role gravity played in the formation of the sun?