This question is about the elements in Group O. What name are Group O
elements also known by?

What effect might melting sea ice have for people who live in coastal areas?

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.

Who discovered a pattern to the elements in 1869?