Susana heats up a sample of red crystals. While the sample was heated a gas is released and a blue powder is left after the heating. Is the sample of red crystals an element or a compound

This chart represents the melting point of several substance. what besy explains the high melting point of the salt?

What is the correct term for living the most sustainable life you can within your current circumstances?

Will give ! what are the advantages and disadvantages of nuclear power? check all that apply. one advantage of nuclear energy is that it does not produce carbon dioxide emissions. storage of nuclear waste is a short-term problem associated with nuclear energy. the problem with uranium mining is that a large quantity of uranium must be extracted to meet energy needs because the energy release from uranium fission is so low. safe operation of a nuclear power plant can be jeopardized by a human mistake.