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Calculate to the proper number of signif...

Calculate to the proper number of significant digits, `4.5xx10^(4)m+ 3.00xx10^(5)mm`.

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`(4.5xx10^(4)m)+(3.00xx10^(2)m)=4.53xx10^(4)m`
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BRILLIANT PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY-QUESTIONS
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  2. How many significant figures are there in the following number? pi

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  3. Calculate to the proper number of significant digits, 4.5xx10^(4)m+ 3....

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  4. Add the following quantities to the proper number of significant digit...

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  5. Add the following quantities to the proper number of significant digit...

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  6. Add the following quantities to the proper number of significant digit...

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  7. Find the number of significant digits: 14.90xx0.0070 div 0.091

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  8. Find the sum to the correct number of significant digits: 14.90+0.00...

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  9. Find the difference to the correct number of significant digits: 10....

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  10. How many millimeters are there in 25.0cm?

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  11. Convert 12.5 g cm^(-3) to kilograms per litre.

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  12. Find out the volume of 40 kg of a substance whose density is1.60 g cm^...

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  13. The density of a metal is 9.50g cm^(-3) Calculate the number of kilogr...

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  14. The density of a solution containing 17.0%" of "NaCl" is "1.13 cm^(-3)...

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  15. 2 g of CaCO(3) on strong heating gave 1.12 g of CaO and 448 ml of CO2....

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  16. A simple iron oxide was found to contain 72.17% iron. 2 g of the oxide...

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  17. Nitrogen and oxygen from two compounds. The nitrogen content of one of...

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  18. Sulphur combines with hydrogen and oxygen to give H2S"and "SO2 respect...

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  19. What is the ratio of reactants and products when nitrogen combines wit...

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  20. 291.2 ml" of "N2reacts with 873 mL of H2 to from 582.4 mL of NH3 at ST...

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