State how you can tell from a dot and cross diagram that the particles in a compound are held together by ionic bonds

Identify the 4 classification system for plants

What type of reaction is shown below? CaCl2 (aq) + MgSO4 (aq) - -> CaSO4 (s) + MgCl2 (aq)

What is the general term used to describe animals from Platyhelminthes?

Which of the following solutions is a buffer? A) A solution made by mixing 100 mL of 0.100 M HClO and 50 mL of 0.100 M HCl. B) A solution made by mixing 100 mL of 0.100 M HClO and 500 mL of 0.100 M NaOH. C) A solution made by mixing 100 mL of 0.

In the alpha decay of Francium-221, what daughter element is produced?

A mixture of He He, N 2 N2, and Ar Ar has a pressure of 22.1 22.1 atm at 28.0 28.0 °C. If the partial pressure of He He is 2475 2475 torr and that of Ar Ar is 1049 1049 mm Hg, what is the partial pressure of N 2 N2?

Oceans make the temperaturs of nearby land more extreme ... True or false

The Greek letter D stands for A. Mass of B. Rate of C. Change in D. Heat stored in

14. Two or more substances that are together but do not combine to form a new, pure substance.

A solution of a compound with a known extinction coefficient of 23,100 M-1cm-1 has an absorbance of 0.735 in a 1.30cm path length, what is the concentration of the solution