4. Given the following balanced equation, determine the rate of reaction with re

Question

4. Given the following balanced equation, determine the rate of reaction with respect to 5. What is the general valence-electron ground-state electron configuration for alkaline earth metals (Be, Mg, Ca, Sr, Ba and Ra)? 6. The horizontal rows of the periodic table are called (A) groups (B) periods (C) triads (D) elements 7. What is the likely formula for the binary compound (containing only two elements) formed from the elements represented by letters A and C on the periodic table below? 8. Convert the quantity 1.0 mg.cm^-2 into kg.m^-2.

Explanation / Answer

4) since SO2 is formed d[SO2]/dt is positive

we devide d[SO2]/dt by stoichiometric coefficient 2 to find rate

and hence rate = 1/2d[SO2]/dt

5) they are 2nd group elements

hence 2 electrons in valence shell

also they are s block elements

and hence ns2

6) periods

7) A is 2nd group +2charge C is 15th group charge = -2

hence A2C2

in lowest form we write AC

8) mg to kg multiply by 10-6 cm2 to m2 devide by 10-4   ,multiply by 10-2

1.0*10-2

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