Hydrates are formed with compounds
A. ionic
B. covalent
C. None of these
D. metallic

100mg magnesium reacts with 20ml of 1.0m hcl

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2

An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample? a. naphthalene, a molecular solid with the formula c10h8 b. silica, a network solid held together by covalent bonds with the formula sio2 c. calcium chloride, an ionic compound with the formula cacl2 d. water, an molecular compound with the formula h2o