к 64,8 г сплава магния и меди добавили избыток соляной кислоты при этом выделилось 6,72 л газа. Определите химичекое количиство меди, которое приходиться на 1 моль магния в сплаве

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

Suppose a lab group reports a ppercent yield of sand of 105. is it really possible to collect more sand than was originally represented? what is the possible explanation for the extra product?

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder