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    Does this contribute to the nature of gases?

    According to Jaques Charles's contributions, did his discoveries relating to the Hindenburg or gas valve contributed to the understanding of the nature of gases?
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    How do we simplify this logarithm ?

    How do we simplify this logarithm ? Picture attached:
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    How do we simplify:

    How do we simplify ? Picture attached:
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    Help!! Rates question

    I have 10kg of a radioactive material, which appears to continuously decay at a rate of 100% per year. How much will I have after 3 years? Please explain. :) The answer is not zero. However, the overall answer is that there will be roughly .49....kg of material left after 3 years. Which...
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    Zn metal in ZnSo4

    What happens if Zn metal is dipped into ZnSO4 solution? Is Zn metal made up of zn 2+ ions and electrons?
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    What is the lowest score for maths extension?

    I know that for normal specialist class the lowest unit score was 60 % (not accounting the v grades) What is the lowest score for specialist extension then?
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    What do I actually get if

    I got 80% on my chemistry test that was worth 30%. My Z score was 1.45. the mean was 56% and the sd was 13. Does the Z score of 1.45 pull the 80% higher? What roughly would I get for this chem test.
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    What type of chemical reaction is ?

    What type of chemical reaction is ? So2 + H20 to H2SO3?
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    Is C5H6N and C5H5NH the same ?

    Is C5H6N and C5H5NH the same ?
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    what is the conjugate acid of base C5H5N?

    what is the conjugate acid of base C5H5N? Is it HC5H5N or C5H5NH? It seems to be the H plus ion is attached to the end instead of the front? why in this particular order?
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    what is similar about the seasons of antipodes?

    what is similar about the seasons of antipodes? (countries opposite side of each other)
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    Method of finding cartesian equation of?

    what is the Method of finding cartesian equation of this conic parabola. How do we find the vertex or the focal length? Given: focus at (-4,0) and directrix at -1
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    How to solve this question ?

    A give way sign with shape of an equilateral triangle has side length of 87 cm. The sigh is attached in two places to a metal pole. How far from the top of the sign should the holes be drilled if the top hole divides the vertical height of the sign in the ratio 1:9 and the bottom in the ratio...
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    how to find points of intersection

    how to find points of intersection of px + qy =1 and qx + py =1 and explain why the lines intersect on line y =x ?
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    How would you describe in words the process of back titrating?

    How would you describe in words the process of back titrating? given two equations Stage 1: NH3 (aq) + HCl (aq) → NH4Cl (aq) Stage 2: 2HCl (aq) + Na2CO3 (aq) → 2NaCl (aq) + CO2 (g) + H20 (l)
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    When is Back titrating most effective?

    When is back titration is the most effective technique to use in some chemical processes? I know some include the insoluble solids..
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    Form an equation describe the curve?

    The points A (4,-2) , B (-4,4) and P (x,y) form a right angle at P. Form an equation in x and y. hence find the equation of the curve on which P lies? How to find the equation?
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    What are the possible values of K?

    y= 2x+1 , y=2x -1 , y =3-1/2x , y =k-1/2x What are the possible values of K if the lines enclose a square?
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    Help!! First principle method?

    How to divide the line segment of points A (1,7) and B(4,1) externally in ratio of 1:2 using the first principle method.??
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    Help! to approach this maths question??

    :wavey: A rhombus with vertices A (1,6) B (6,6) C (-2, 2) and D (x, y) Find coordinate of D. I attempted question using distance formula and simultaneous equations but the x and ys kept cancelling each other out.
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