- How a periodic table can be learned ?

Discover Questions

How many moles of ions are in a solution of 7.4 moles FeCI3 in 500 mL water? Is it true that the oxidation number of an ion is equal to its protons subtracting its electrons? If 5sinθ = 3 determine the value of:
1. cos (θ-360)
2. Tan (squared)θ
3. Sin θ x cos θ (all divided by cos (squared θ)? Let X1 & X2 have joint pmf p(x1, x2)=(x1x2)/36. 0 otherwise Find joint pmf of Y1=X1X2 and Y2=X2? Is three days enough to study for a calculous test?