a friend notices that a nail that was left outside for a few months seems larger and heavier than it was before. he says it disproves the law of conservation of mass. explain why he is wrong

What royal scientist used the 29th day of frozen vapor to encounter elements for mastering new culinary creations?

How many atoms are there in 5.70 mol of mg

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together