Question

1. Восстановите пропуски в уравнениях реакций: 1. 2NO2 + H2O → HNO3 + 2. СН4 + H2O(г) ->> ... +3H2 3. H2SO4 + P→ ... + SO2 + H2O 4. ... + 202 - >>2CuO + SO2 ... + H2SO4 ->> 2CrO3 + K2SO4 + H2O ​

Answer 1

Відповідь:

1. 3NO2 + H2O=2HNO3 +NO

2. СН4 + 2H2O=CO2+4H2

3. 5H2SO4 + 2P=2H3PO4 + 5SO2 + 2H2O

5. K2Cr2O7+H2SO4=2CrO3+K2SO4 + H2O

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Answer 2

Balancing Chemical Equations

1. Balancing the Equation: - The balanced chemical equation for the given reactions are as follows: 1. 2NO2 + H2O → HNO3 + HNO2 [[1]] 2. CH4 + 2H2O(g) → CO2 + 4H2 [[2]] 3. H2SO4 + P → H2S + H2O + SO2 [[3]] 4. 2Cu + O2 → 2CuO; SO2 + H2O → H2SO3; H2SO3 → H2SO4; 2Cr + 3O2 → 2CrO3; K2SO4 + H2O → K2SO5 [[4]]

Explanation

Balancing chemical equations involves ensuring that there are an equal number of each type of atom on both sides of the equation. This is achieved by adjusting the coefficients of the compounds involved in the reaction.

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