What is the ph of a solution which is 0.025 m in weak base and 0.037 m in the conjugate weak acid (ka = 7.1 × 10–6)?

Identify one disadvantage to each of the following models of electron configuration: dot structures arrow and line diagrams written electron configurations type in your answer below.

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

Why do lunar and solar eclipse not happen every month