Why copper, silver, gold and platinum are placed under hydrogen in the reactivity series?/answer me correctly and I will give thanx on your 5 answers and a brainliest mark. i never lie best of luck!

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?

How many moles of oxygen react with 12 moles of aluminum

A0.100-kilogram apple hangs in a tree 1.50 meter above the ground. ignore frictional effects, the total mechanical energy of the apples is