Angy

A piece of wire x cm long is to be cut into two pieces, each to bent to be a square. the length of a side of one square is to be 9 times the length of a side of the other . Express the sum of the areas of two squares in term of x .

As a warm-up for their juggling act, two clowns are tossing balls straight up in the air and catching them. While following the balls with his eyes, Joey says, ”Isn’t it strange how they just stand still in the air for a moment before they fall back down?...

A certain mass(m) of an impure iron sample of 40% purity ,is treated with an excess of HCl to give H2 that occupies 44.8 L at s.t.p ( Vm=22.4) where the yeild of the reaction is 0.8. A) calculate m. B) deduce the mass of HCl reacted. Thanks in advance!!

3.5 0.3 ________ 3.8

Well,this is really easy when u work hard