WebWhich of the following substances can be separated into simpler substances only by chemical means? sodium, water, salt water, or gold. water sodium and gold are elements … WebMixtures are physically combined structures that can be separated back into their original components. Terms. elementAny one of the simplest chemical substances that cannot be changed in a chemical reaction or by any chemical means. Made up of atoms that all have the same number of protons. ... iron, copper, gold, mercury and lead are metals ...
Elements, compounds, and mixtures - Purdue University
WebJan 17, 2024 · It, like all chemicals, can be separated into both of its components, so B is out. The other two answers basically say is it either only chemical or physical means that can separate it, when the answer is that it is only chemical changes that can separate a compound. There can be a reaction when a compound is broken up. WebFeb 11, 2009 · It's a chemical change because the lemon and water cannot be separated by physical means. If it were a physical change, then the lemons and water would not be dissolved. Why is water a pure substance? crypto to stake
Could you separate gold if it was mixed melted with other …
WebMatter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. Mixtures are … WebA heterogeneous mixture is a mixture of two or more chemical substances (elements or compounds), where the different components can be visually distinguished and easily separated by physical means. Examples include: mixtures of sand and water; mixtures of sand and iron filings; a conglomerate rock; water and oil; a salad; trail mix WebJun 1, 2024 · $\begingroup$ Not a chemical means, ... The resulting amalgum can actually be pretty easily separated by just letting the mercury evaporate, but it is a pretty neat way to get rid of the gold temporarily. Share. ... Because of these, gold can be easily extracted from practically any gold compound. crypto to watch out for