Describe at least two factors that can affect the rate of a chemical reaction.

How many elements are in magnesium

A chemistry graduate student is given 125. mL of a 1.00M benzoic acid HC6H5CO2 solution. Benzoic acid is a weak acid with = Ka*6.310-5. What mass of KC6H5CO2 should the student dissolve in the HC6H5CO2 solution to turn it into a buffer with pH = 4.

Why are stoichiometric calculations so important in industrial production of chemical substances?

What is true about the element francium (Fr, atomic number 87) ? More than one can be true A) It has seven valence electrons. B) It is likely to form ionic bonds. C) It is in Period 7. D) It is nonmetal. E) It is a metal.

How many carbon atoms C3H8 has 3.92 X 10^24 H atoms

When group 17 elements become ions they have a charge of?

The first periodic table developed by Mendeleev was not completely accurate, but was a great step toward accomplishing the periodic table of elements we use today. Explain how the modern periodic table is credible today because of Mendeleev's work.

For the reaction represented by the equation 2hno3 + mg (oh) 2® mg (no3) 2 + 2h2o, how many grams of magnesium nitrate are produced from 8.00 mol of nitric acid, hno3, and an excess of mg (oh) 2?

What type of bond is between sodium and oxygen

How are today's field galaxies different than distant ones?