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Write down the concentration of each of the following solutions in g/L and mol/L. 4) 4.9 g H2SO4 in 200 mL solution

asked Apr 13, 2022 in Chapter 5 Acids, Bases and Salts by Doubtly (98.9k points)

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Light of wavelength 6000A0 is incident on a slit of width 0.30 mm. The screen is placed 2 m away from the slit.

asked Apr 10, 2022 in Engineering Physics 2 by Doubtly (98.9k points)

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Match the pairs and explain.

asked Apr 14, 2022 in Chapter 15 Life Processes in Living Organisms by Doubtly (98.9k points)

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How will you prove experimentally that the graphite is a good conductor of electricity.

asked Apr 14, 2022 in Chapter 13 Carbon: An Important Element by Doubtly (98.9k points)

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Write two physical properties of each. a) Diamond b) Charcoal: c) Fullerenes:

asked Apr 14, 2022 in Chapter 13 Carbon: An Important Element by Doubtly (98.9k points)

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Select the proper options and complete the statement. (Single, all, double, ionic, carbon, give and take, hydrogen)

asked Apr 14, 2022 in Chapter 13 Carbon: An Important Element by Doubtly (98.9k points)

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A litmus paper was dropped into 2ml dilute HCl. Then 2ml concentrated NaOH was added to it and stirred.

asked Apr 13, 2022 in Chapter 5 Acids, Bases and Salts by Doubtly (98.9k points)

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Explain how the element sodium is monovalent.

asked Apr 11, 2022 in Chapter 4 Measurement of Matter by Doubtly (98.9k points)

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The resistance of a conductor of length x is r. If its area of cross-section is a, what is its resistivity?

asked Apr 11, 2022 in Chapter 3 Current Electricity by Doubtly (98.9k points)

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1 answer 395 views

An object of height 7cm is kept at a distance of 25cm in front of a concave mirror. The focal length of the mirror is

asked Apr 14, 2022 in Chapter 11 Reflection of Light by Doubtly (98.9k points)

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What is the weather and climate?

asked Apr 14, 2022 in Chapter 9 Environmental Management by Doubtly (98.9k points)

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Methane is called as marsh gas.

asked Apr 14, 2022 in Chapter 13 Carbon: An Important Element by Doubtly (98.9k points)

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What is an echo? What factors are important to get distinct echo?

asked Apr 14, 2022 in Chapter 12 Study of Sound by Doubtly (98.9k points)

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1 answer 406 views

State the differences. 1. Acids and bases

asked Apr 13, 2022 in Chapter 5 Acids, Bases and Salts by Doubtly (98.9k points)

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What is the use of the function ‘imagetypes()’?

asked Apr 9, 2022 in PHP by Doubtly (98.9k points)

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write uses of Radioactive substances

asked Apr 14, 2022 in Chapter 14 Substances in Common Use by Doubtly (98.9k points)

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Which letters of the English alphabet form images that look the same as the original letters?

asked Apr 14, 2022 in Chapter 11 Reflection of Light by Doubtly (98.9k points)

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Give examples Basic radicals

asked Apr 11, 2022 in Chapter 4 Measurement of Matter by Doubtly (98.9k points)

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Find out the difference between Diamond and Graphite

asked Apr 13, 2022 in Chapter 9: Elements of Group 13, 14 and 15 by Doubtly (98.9k points)

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1 answer 353 views

write notes on Industrial waste.

asked Apr 14, 2022 in Chapter 9 Environmental Management by Doubtly (98.9k points)

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