Zn-ZnS-H2S-SO2-SO3 помогите плиииз

Zn-ZnS-H2S-SO2-SO3 помогите плиииз
- Предмет:
  Химия
- Автор:
  atticusstafford
- 6 лет назад

Ответы 5

pravilno?
- Автор:
  gucci7kcp
- 6 лет назад
- 0
???skajite pjjjj
- Автор:
  román15
- 6 лет назад
- 0
все правильно
- Автор:
  chaseo4jk
- 6 лет назад
- 0
спасибо
- Автор:
  elisechapman
- 6 лет назад
- 0
Zn+S=ZnS;ZnS+H2SO4=ZnSO4+H2S;2H2S+3O2=2H2O+2SO2;2SO2+O2=(платиновый катализатор) 2SO3
- Автор:
  julian47
- 6 лет назад
- 0
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INCOME TAX

Income tax is commonly a progressive tax because the tax rate increases with increasing income. For this reason, it is generally advocated by those who think that taxation should be borne more by the rich than by the poor, even to the point of serving as a form of social redistribution. Some critics characterize this tax as a form of punishment for economic productivity. Other critics charge that income taxation is inherently socially intrusive because enforcement requires the government to collect large amounts of information about business and personal affairs, much of which is considered proprietary and confidential.
Income tax fraud is a problem in most, if not all, countries implementing an income tax. Either one fails to declare income, or declares nonexistent expenses. Failure to declare income is especially easy for non-salaried work, especially those paid in cash. Tax enforcement authorities fight tax fraud using various methods, nowadays with the help of computer databases. They may, for instance, look for discrepancies between declared revenue and expenses along time. Tax enforcement authorities then target individuals for a tax audit – a more or less detailed review of the income and tax-deductible expenses of the individual.
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Zn-ZnS-H2S-SO2-SO3 помогите плиииз

Ответы 5

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