a certain solution has a molarity of m = 6.39 mol/l and has a volume of v = 0.550 l what is the value of n

What is the correct way to prepare a 1 molar solution of kno3?

How can we tell if water freezing is a physical reaction or a chemical reaction?

Water is a pure substance. Which of the following is true about water? A chemical change is required to separate the elements present in it. A physical change is required to separate the elements present in it.

In terms of ion charges and chemical change, what is the difference between CuF (s) and CuF2 (s) ?

Describe how molecules form from individual elements. How and why can we predict which molecules will form?

Roxanne was asked by her teacher to explain why sodium ions (Na) and chlorine ions (CI) combine into sodium chloride (NaCl). Roxanne said it was because chlorine is highly electronegative and sodium has a low ionization energy.

A substance is composed of one kind of atom and can't be separated into simpler substances or converted into another substance by chemical pressure. Under which category would you classify this substance

Ten apples take away eight apples how many apples are left

Draw the structure of the bromohydrin formed when (e) - 3-methyl-3-hexene reacts with br2/h2o.

Which of the following solutions has the greater buffer capacity: (a) 100 mL of 0.30M HNO2 - 0.30 M NaNO2 or (b) 100 mL of 0.10 M HNO2 - 0.10 M NaNO2?