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2022/06/28 16:46:33瀏覽168|回應0|推薦0 | |
Is environmentally friendly stone paper a mixture? The main raw materials of environmentally friendly stone paper are calcium carbonate and polymer materials, which are mixed with a variety of substances, stone paper company ,so it belongs to a mixture.
Understanding of the concepts of pure substances and mixtures:
Mixture concept: A mixture can be seen as a mixture of several pure substances, and physical changes occur during the formation of the mixture.
The concept of pure substances: pure substances are composed of only one substance and have a fixed composition. They can be represented by chemical formulas.
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