Read the Safety Data Sheet (click SDS icon below) of hydrogen peroxide to identify the recommended way to store this substance. a. In a tightly closed container in a dry and well-ventilated place
b. In an open container in a bright and humid environment
c. In a glass, leak-proof bottle on a shelf or cabinet
d. In a well-ventilated container in a closed, dry area

You may expect bonds between two atoms which each have n covalent lonic metallic hydrogen

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

Astudent is given a sample of a blue copper sulfate hydrate. he weighs the sample in a dry covered porcelain crucible and got a mass of 23.875 g for the crucible, lid, and sample. the mass of the empty crucible and lid was found earlier to be 22.652 g. he then heats the crucible to expel the water of hydration, keeping the crucible at red heat for 10 minutes with the lid slightly ajar. on colling, he finds the mass of crucible, lid, and contents to be 23.403 g. the sample was changed in the process to very light clue anhydrous cuso4. if there are again 100.0 g of hydrate, how many grams of cuso4 are in it? how many moles of cuso4? (hint: molar mass of cuso4 = 159.6 g / mole. what per cent of the hydrate is cuso4? you may convert the mass of cuso4 to moles.)