Cl2 + 2KI I2 + 2KCI Assuming the reaction completes, what measurement could the student use to determine the limiting reactant?
A
the time it takes the lz precipitate to form
B
the heat generated by adding the Ki
ООО
С
the change in molarity after adding the KI
D
the weight of 12 at the end of the reaction
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Heating it up with cause a quicker reaction time

Answer the air near the ground cools to its dew point

Answer(false);

    pb(so₄)₂this element is lead (iv) sulfate. lead is a multivalent ion. but we know that sulfate ions, so₄²⁻, have a charge of -2. in order to have the ratios match up, we need pb⁴⁺ (two times as many pb⁴⁺  than so₄²⁻).the molar mass can be calculated by finding the mass of one mole of this compound. consider the following calculation,  where amu represents the atomic mass unit. the amu for each atom involved in this compound can be found on a periodic table.  molar mass = amu pb + 2(amu s + 4 * amu o)from a periodic table (with masses rounded to the nearest tenth),      amu pb = 207.2 g    amu s =  32.1 g    amu o = 16.0 gtherefore    molar mass =  207.2 + 2(32.1 + 4*16.0) = 399.4 gthe molar mass is therefore 399.4 grams per mol