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Balance the following chemical equations...

Balance the following chemical equations including the physical states.
2) `Fe+O_(2)rarr Fe_(2)O_(3)`

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`4Fe_((s))+3O_(2_(g))rarr2Fe_(2)O_(3_(g))`
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VGS PUBLICATION-BRILLIANT-CHEMICAL REACTIONS AND EQUATIONS-OBJECTIVE TYPE QUESTIONS
  1. Balance the following chemical equations including the physical states...

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  2. A chemical equation which contain the same number of atoms of differen...

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  3. The reagent used to remove the colour of the matter is called

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  4. Explain rancidity.

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  5. Metals displaces hydrogen gas from dilute acids. This is an example fo...

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  6. The reaction of formation hydrogen chloride from hydrogen and chlorine...

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  7. The main type/s of change/s that occurs in the substances is/are

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  8. Quick lime

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  9. An insoluble substance may be formed in a chemical reaction is called

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  10. The substance which undergo chemica change in the reaction

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  11. New substances formed in a reaction are called

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  12. In a word equation of a chemical reaction, products are written at

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  13. Which symbols are used in a chemical reaction?

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  14. In a chemical formula, no subscript was written. What does indicate th...

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  15. Which one is the balanced equation?

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  16. Skeleton equation means

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  17. How do you express the physical state of substances in the chemical eq...

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  18. Aqueous means

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  19. Aqueous indicates in chemical equation as

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  20. The reaction in which heat release

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  21. Heat is required to this reactions

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