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State whether the followijng statement i...

State whether the followijng statement is true of false :
A chemical equation can be balanced easily by altering the formula of a reactant or product.

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LAKHMIR SINGH & MANJIT KAUR-CHEMICAL REACTIONS AND EQUATIONS -Exercise
  1. What happens chemically when quickime is added to water filled in a bu...

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  2. Why should a magnesium ribbon be cleaned before burning in air?

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  3. State whether the followijng statement is true of false : A chemical...

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  4. What is wrong with the following chemical equation ? Mg+OtoMgO Cor...

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  5. What does the symbol (aq) represent in a chemical equation?

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  6. Why is photosynthesis considered an endothermic reaction ?

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  7. Translate the folowing statement into chemical equations and then bala...

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  8. Write the balanced chemical equations for the folowing reactions (a)...

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  9. Complete and balance the following equations : (a) NaOH+ ..........t...

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  10. Correct and balance the following equations: (i) Ca+H(2)OtoCaOH+H ...

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  11. Write complate balanced equations for the following reactions: (a) C...

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  12. Balance the following equations: (i) Na+O(2)toNa(2)O (ii) H(2)O(2)...

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  13. Fill in the following blanks with suitable words : (a) Chemical equa...

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  14. (a) Give one example of a chemical reaction. (b) State two character...

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  15. (a) What is a chemical equation ?Example with the help of an example. ...

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  16. When hydrogen is passed over copper oxide, copper and steam are formed...

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  17. (a) What are the various ways in which a chemical equation can be made...

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  18. (a) What is a balanced chemical equation ? Why should chemical equatio...

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  19. (a) Explain with example, how the physical states of the reactants and...

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  20. Write any two observations in an activity which may suggest that a che...

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