Which of these salts is most soluble at 50°c? kno3 nano3 kclo3 nacl

NaNO₃.

Explanation:

It is 90 g per 100 g water.

It is 110 g per 100 g water.

It is about 20 g per 100 g water.

It is about 40 g per 100 g water.

So, the most soluble salt at 50°C is NaNO₃.

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.