Your local council has decided to cancel a bus service from a village to the town centre that is used by lots of elderly people. Write a letter of complaint about this decision, explaining why it is bad for people who live in the village and also people in the town centre.
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Ответы на вопрос:
2 nahco3 > na2co3 + co2↑ + h2o 2 hno3 + ca(oh)2 > ca(no3) + 2 h2o6 li + n2 > 2 li3nzn + 2 hcl --> zncl2 + h2↑al2o3 + 6 na > 3 na2o + 2 alco2 + h2o --> h2co3
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