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The correct answer below is option (C). I need an explanation as to why this is the correct answer as opposed to the others based on trends in the periodic table, as it seems to be that there are others which are correct as well.
Which statement best reflects the organization of the modern periodic table:
a) Elements are always arranged in order of increasing atomic weights
b) Metallic properties increase going from bottom to top in a family of elements.
c) nonmetallic properties tend to predominate for elements at the far right portion of the table.
d) each transition element is placed in the column of the main group element that it most closely resembles.
Then she added 90ml of water to the same solution making it a total of 100ml and checked the solutions pH and it was 3. Predict the pH of the solution if Amber adds 900ml of water to the solution. Explain why you predicted that pH.
Breathalyzers determine the alcohol content in a person's breath by the following (unbalanced) redox reaction:
if the solubility of AgNO3 at 40oC is 211 g per 100 g of water, what mass of this solute can be dissolved in 350 g of water at the same temperature?
Give the name of the most probably side product with the high melting point. d. Explain, with the aid of a mechanism, the role of H2SO4 in the reaction
The heat of vaporization of liquid water is 40.67 kJ/mol, and the molar heat capacity is 75.3 J/ (K x mol) for the liquid and 33.6 J/ (K x mol) for the vapor.
Write the net redox reaction.
protonated means that the drug is in its acid form (HA) and dissociated means that the drug is in its dissociated form (A-). the pH of the stomach is about 1 or 2. the pH of the blood is about 7.4. given that a drug has a pKa of 4.2.
Calculate Ea. Express your answer using two significant figures Ea= kJ/mol Calculate A. Express your answer using one significant figure. A = M-1s-1
A heater burns normal Butane (n-C4H10) using 40% excess air. combustion is complete . the flue gas leaves the stock at a pressure of 100 kpa and a temperature of 260 c
The temperature of the calorimeter plus contents increased from 21.12°C to 29.85°C. What is the heat of combustion per gram of octane? What is the heat of combustion per mole of octane?
Which radio station broadcasts at a longer wavelength: 93.9 FM or 104.3 FM? To support your answer, list the actual wavelength values and units for each of these radio stations.
Calculate the minimum chloride ion concentration needed to initiate precipitation of PbCl2 from a solution that contains 0.01M Pb^2+ (aq).
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