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beenggbeengg
2 năm trước
Bài 9: Hoàn thành các phương trình phản ứng sau: a) (CH3COO)3C3H5 + NaOH " b) (C17H35COO)3C3H5 + H2O " c) (C17H33COO)3C3H5 + ? " C17H35COONa + ? d) CH3COOC2H5 + ? " CH3COOK + ?
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A.3-Write Save energy- natural resources – kitchen - the water pipes regularly - modern life – the refrigerator door closed - reduce - stove – follow these simple rules- necessary - the food ready Good afternoon, my friends, Today I'm going to tell you how to_____________1_, especially in our kitchen. As we know, in our_____________2_ , the ___________3_ is a place where we use much of the energy such as electricity, gas, and water. To _____________4_ this amount of this energy, we should: - turn off the lights, fans, and faucets when not______________5_. - get all _____________________6_ before turning on the ____________7_. - keep__________________________8. - check_______________________________9_. If you___________________________9_, not only will you save money, but _____________________10_as well.

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