A buffer solution is made using a weak acid, ha. if the ph of the buffer is 4 and the ratio of a - to ha is 0.001, what is the pka of ha?

What is the name of this covalent compound? CF4

Which change takes place in a nuclear fusion reaction? (1) Matter is converted to energy. (2) Energy is converted to matter. (3) Ionic bonds are converted to covalent bonds. (4) Covalent bonds are converted to ionic bonds.

2) Find the radius and diameter of a circle of area: a) 6.16 cm² 6) 13.86 cm²

What's the difference between direct and indirect methods of flood control?

What type of solvent is needed to remove an oil stain?

Balance the following redox equation in acidic solution using the smallest integers possible and select the correct coefficient for the H + (aq) ion.

Toussaint L' ouveeture lead a revolt that eventually resulted in Independence for

If a solution contains 1 x 106 hb molecules, how many o2 binding sites are available? if the solution of hb is 50% saturated with o2, how many binding sites are occupied by o2?

A. what are isotopes? b. how are the isotopes of a particular element alike? c. how are they different?

The line of longitude used as the origin in a system of coordinates