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Please transfer the knowledge points of Unit 1-12 of junior high school chemistry to me, OK? Thank you! Chemistry is a science that studies the composition, structure, nature and the law of change of matter.1. use drugs to achieve 'Three Noes': you can't directly contact drugs with your hands,Can not put the nostrils to the mouth of the container to smell the smell of the drug,Do not taste any medicine.2. pay attention to saving the use of drugs: the use of drugs should be strictly in accordance with the dosage specified in the laboratory,If the amount is not stated,Usually take the minimum amount,That is, take 1-liquid-2 mL,Solid just cover the bottom of the tube.3. The remaining medicines should be 't
Can the front filter remove scale? If installed together with the water purifier, is it possible to remove most of the alkali and scale. Most of the scale can be removed, and most of the water purification equipment can be done, but this kind of alkali can never be removed, and the filter accuracy must reach 0.1 nm to barely achieve. this monster can also remove sand, sand and the like. chlorine should also be OK without specific parameters. but the taste will not change much. Alkaline substances in water are at least one of the 100 points of common bacteria. To improve the alkali, at least a pure water machine is needed, which is the equipment for making pure water. I will not comment on the quality of Angel products. I will share with you directly the experience of removing soda and scale, hoping to help you. Because I don't know if you are used by the family or for other purposes, I will talk directly about the use of the family (mainly I only know this aspect ). The alkali content is relatively high. it
