What volume of 0.777 M KOH is needed to neutralize 1.56 L of 4.12 M HCl?

You dilute 215 mL of a 0.361 M sulfuric acid solution to a final volume of 816 mL.  What is the molarity of H+ in the diluted solution?

What is the oxidation number of chromium in the dichromate anion?

Write the balanced molecular equations, including states of matter, for each of the following situations if a reaction is expected to occur.  If no reaction occurs, write “NR” (no reaction).   A.   (3 pts)  Aqueous magnesium acetate and aqueous potassium carbonate are combined together. B.   (3 pts)  A gold bar is dropped into a beaker of hydrochloric acid. C.   (3 pts)  Liquid hexane is combusted completely.

What is the systematic name of H2CO3 (aq)?

What is the symbol of the element below?  Enter the name using correct case (lowercase/uppercase). lead

The empirical formula of a certain covalent compound is CHBr.  If the molar mass of the compound is 371.67 g/mol, what is the molecular formula of the compound?

Which element is a Period 6 transition metal?

Write the balanced molecular equations, including states of matter, for each of the following situations if a reaction is expected to occur.  If no reaction occurs, write “NR” (no reaction).   A.   (4 pts)  A chunk of zinc is dropped into a beaker of aqueous acetic acid. B.   (4 pts)  Aqueous solutions of cuprous sulfate and strontium iodide are mixed together. C.   (4 pts)  Rubbing alcohol (isopropanol, C3H8O) is burned (combusted).

What is the systematic name of a compound containing seven Cl atoms and three P atoms?