Why we use ethanol and salt in the titration?

What is the pH of an acidic solution? A. Between 0 and 7 B. 7 C. Above 14 D. Between 7 and 14

Why does hot water freeze faster than cold water?

a gas has a pressure of 0.410 atm and a volume of 32L. At what pressure would the volume of the gas change to 28L?

Which statement explains why water is classified as a compound? (1) Water can be broken down by chemical means. (2) Water is a liquid at room temperature. (3) Water has a heat of fusion of 334 J/g. (4) Water is a poor conductor of electricity.

Which of these groups of elements show the least electronegativity? inner-transition elements A. halogens B. alkali metals C. transition elements D. alkaline earth metals

4. Calculate the wavelength of radiation with a frequency of 8.0 x 104 Hz.

Two glasses labeled A and B contain equal amounts of water at different temperatures. Maya put a drop of blue dye into each of the two glasses.

If you remove all the particles from a wooden table, what remains

Which of the following is the best description of covalent bonding? 1. Bonding that occurs between elements with similar electronegativities, and with transfer of electrons. 2.

You are asked to smell a solution in a beaker. what is the best way of doing this?