Red brown solution R Sodium iodide
solution
Concentrated Hydrochloric acid
Yellow green gas a
+
H23(aq)
Solid P
Solid
hydroxide
Cold dilute Potasium
Aqueous solution 3
Pb(NO3)2(aq)
White solid T
Name:
(0) Solid P
(ii) Gas Q
(iii) Solid T
(iv) Solid U
Write an ionic equation fd R.
Give a commercial application of solution S.
11
thehemotion mode when again containing chlorine​

a chemical reaction happens

explanation:

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.

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