At 50 degree C pK_w = 13.26. What is the pH of pure water at this temperature? a. 6.63
b. 7.00
c. 7.37
d. 13.26

An object displaces 652 ml of water. the volume of the object is: 0.652 cm³ 6.52 cm³ 65.2 cm³ 652 cm³

Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent

Condensation happens when water vapor cools. true or false? ?