10. Use the activity series of metals to complete a balanced chemical equation for this single-replacement reaction. Ag(s) + KNO3(aq) →
AgK + NO3
O No reaction takes place because silver is less reactive than potassium.
Q AgNO3 +K
O AgKNO3

No reaction takes place because silver is less reactive than potassium.

Explanation:

In the picture attached the activity series is shown . As can be seen, potassium is the most reactive element, therefore is not replaced by any other element.

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.

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.