Determine the pH of an HNO2 solution of each of the following concentrations:

a) 0.110 M

b.) 1.50 * 10-2 M

What are the strengths and limitations of a cell?

Cacodyl, which has an intolerable garlicky odor and is used in the manufacture of cacodylic acid, a cotton herbicide, has a mass percentage composition of 22.88% C, 5.76% H, and 71.36% As and a molar mass of 209.96 g/mol.

What four things affect the tides

A water sample is found to contain 59 ppm zinc. If you drank 972 mL of this water, how many g of zinc would you ingest? Answer in units of g.

Suggest two reasons why the noble gases become less ideal in their behavior down the group from helium to xenon.

Chemical bonds? A.) Combine compounds to form elements B.) Hold atoms together to form compounds C.) Are always covalent D.) Are always ionic

What is the smalles lt unit of copper that still maintained the characteristics of copper

Which terms identify types of chemical reactions? (1) decomposition and : sublimation (2) decomposition and synthesis (3) deposition and sublimation (4) deposition and synthesis

What element behaves MOST like magnesium (Mg) ? A) S B) Si C) Sn D) Sr

It was determined through analysis that a compound, sodium carbonate with a molar mass of 263 g/mol contained 68.4% water. determine the toilet number of water molecules in this hydrate