Student weighted required carbon to perform below reaction using a balance with the precision of 0.0012 gram. How much is the error of weighting in the quantity of PbO in Mole ?​

Which type of intermolecular attractions holds ammonia molecules together with other ammonia molecules?

Explain how to convert from one unit to another in the metric system.

Need , hurry pls create a superhero out of the element iron, what are its powers and his sidekick ( an element that works well with iron). how was the superhero made and who discovered him