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Express (6.6xx10^(4))+(0.55xx10^(5)) in ...

Express `(6.6xx10^(4))+(0.55xx10^(5))` in scientific notation.

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The correct Answer is:
`12.1xx10^(4)=1.21xx10^(5)`
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AAKASH INSTITUTE-SOME BASIC CONCEPTS OF CHEMISTRY -TRY YOURSELF
  1. Express (2.2xx10^(4))xx(3.3xx10^(5)) in scientific notation.

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  2. Express (6.6xx10^(9))/(5.5xx10^(7)) in scientific notation.

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  3. Express (6.6xx10^(4))+(0.55xx10^(5)) in scientific notation.

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  4. Express (6.6xx10^(4))-(0.55xx10^(5)) in scientific notation.

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  5. Express the following number to two significant figures (i) 5.602792...

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  6. Express the following numbers to three significant figures. (i) 6.02...

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  7. What is the sum of 5.228 kg and 1.02 kg ? Express the result to the ap...

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  8. What will be the length of a metre stick of 5.602 m when 2.8 m portion...

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  9. The mass of a metal block is 5.432 g. If density of metal is 6.4 g//cm...

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  10. Perform the following calculations to the appropriate number of signfi...

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  11. Perform the following calculations to the appropriate number of signfi...

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  12. Convert the following in kilogram. (i) 0.91xx10^(-27)g (Mass of elec...

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  13. Density of an object is 3g//cm^(3). Express it in kg//m^(3).

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  14. When 6.4 g of NaHCO(3) is added to a solution of CH(3)COOH weighing 20...

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  15. If 12.6 g of NaHCO(3) are added to 30.0 g of CH(3)COOH solution, the r...

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  16. 2,75 g of cupric oxide was reduced by heating in a current of hydrogen...

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  17. 12.976 g of lead combines with 2.004 g of oxygen to form PbO(2). PbO(2...

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  18. On analysis it was found that the black oxide of copper and red oxide ...

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  19. Sulphur and oxygen are known to form two compounds. The sulphur conten...

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  20. Boron has two isotopes, B-10 and B-11. The average atomic mass of boro...

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