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  • How do you simplify -3sqrt5*sqrt20? | Socratic
    -30 -3sqrt5*sqrt (4*5) -3sqrt5*2sqrt5 -6*5 -30 Combine terms in the radical to find the simplified expression is -30
  • Question #6558e - Socratic
    6 2 * 10^(-4) The idea here is that you can find the equilibrium concentration of atomic bromine, "Br", by using the percent of molecular bromine, "Br"_2, that gets converted by the reaction Once you know the equilibrium concentrations of both chemical species, you can solve for the equilibrium constant of the reaction Calculate the concentration of molecular bromine by using the given
  • I need some help with this one as well. It is about atoms . . . - Socratic
    Actually atoms are not all about the same size, a Caesium atom is 10 times bigger than a Helium atom Atoms are nearly all empty space Nearly all of the mass of an atom is in its tiny nucleus A convenient unit of size for the diameter of a nucleus in the femtometre 1fm=10^-15m; A Hydrogen nucleus has a diameter of about 1 75fm, an Uranium nucleus has a diameter of 15fm Atoms have shells of
  • Question #5362a - Socratic
    Discover how Lens in the Google app can help you explore the world around you Use your phone's camera to search what you see in an entirely new way
  • Question #49d33 - Socratic
    You need to multiply the ratios times 2 in order to get the lowest whole number ratio of 3:2 The ratios must be whole numbers When they are not whole numbers, you need to multiply the ratios by some whole number that will give you the lowest whole number ratio In this case, 2×1 5=3 and 2×1=2 So the number that when multiplied will give the lowest whole number ratio is 2, and the ratio
  • Question #f6c36 - Socratic
    There are multiple parts to the question so i'll try and keep it organized if it costs $2,250 to print 500 calendars, it can be shown as 500x=2,250 x=4 5 This means it costs $4 5 to print one calendar let's say the shelter decides to set the price at $10 Their profit per calendar is shown as 10-4 5 5 5 which means if they sell each calendar for $10, they will make a $5 5 profit The equation
  • Question #583f8 - Socratic
    Based on my reading, yes The ancient historical record is far from what we'd consider sound documentation, being merely a chronicle and king list But the first political entities also seem to have been the first cities, Ur, Lagash, Larsa, Isin, Eridu, Kish, Nippur, and others (It might be more proper to say that they were ruled by priest kings instead of just kings, but by all means see the
  • Who discovered soduim and when was it discovered and how was is . . .
    This was the discovery of old Humphrey Davy in 1807 See this site I think it was originally isolated by using a voltaic pile (a BATTERY) that was used to decompose very dry sodium hydroxide The background and links are in the site
  • Question #ab4db - Socratic
    See explanation below Yes, you are right The quadratic formula is one way to solve this particular equation Alternatively, you can also solve by graphing I won't go into too much detail on the actual process of solving this equation by graphing, but I will just say that you look where the graph intersects the x-axis (these would be the solution(s)) If we use the quadratic formula, we will
  • Question #dbbcb - Socratic
    Avogadro's number shows the number of particles (atoms, ions etc ) in a mole of matter, while the molar mass shows the mass of 1 mole of a substance (in kg or g) If we divide the two numbers we get the number of particles (atoms, ions, etc ) in a mass unit (kg or g) of the substance N A m = [part mol ÷ kg mol = part mol × mol kg = part kg]





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