Fertilizer affects plant growth by supplementing plant nutrients, which allows plants to grow faster and thicker. However, this applies only if the soil is deficient in nutrients. Fertilizer does not compensate for other growth-inhibiting factors such as lack of water,poor soil preparation and weeds
Answer:
3.24 x 10⁴
Explanation:
There are only three sig figs in the starting integer, so to express that in Scientific Notation, you should have the same number of sig figs in the final answer.
Place a pointer at the end of the number 32,400, which should start behind the end of this number, which would be "32,400."
Move it to the left until you land on a number that IS NOT zero.
The number of spaces you've moved is the number of significant figures.
So once you get to the end, you'll notice you moved FOUR spaces, which explains why you are multiplying it by 10⁴.
Answer:
Average atomic mass of potassium based on these relative abundances
![= 39.0944](https://tex.z-dn.net/?f=%3D%2039.0944)
Explanation:
The atomic mass of this element will be equal to the sum of product of its three isotopic masses and its fractional abundance
For isotope I -
Mass of Potassium-39
amu
Fractional abundance of Potassium-39
%
Mass of Potassium-40
amu
Fractional abundance of Potassium-40
%
Mass of Potassium-41
amu
Fractional abundance of Potassium-41
%
Average atomic mass of potassium based on these relative abundances
![= (38.9636 * 0.9326)+ (39.9640*0.0001) + (40.9618 * 0.0673)\\= 36.3374 + 0.0003 + 2.7567\\= 39.0944](https://tex.z-dn.net/?f=%3D%20%2838.9636%20%2A%200.9326%29%2B%20%2839.9640%2A0.0001%29%20%2B%20%2840.9618%20%2A%200.0673%29%5C%5C%3D%2036.3374%20%2B%200.0003%20%2B%202.7567%5C%5C%3D%2039.0944)
Reduction
half reaction
2H_2O
+ CrO_4^2- + 3e -> CrO_2^- + 4OH^-
Oxidation
half reaction
2OH^-
+ SO_3^2- -> SO_4^2- + H_2O + 2e
Balanced
overall equation
H_2O
+ 2CrO_4^2- + 3SO_3^2- -> 3SO_3^2- + 2CrO_2^- + 2OH^-
<span> </span>
Hey there!
When plants grow towards the sunlight they get more light.
This is because the sun gives light. It wouldn't be "C" because sunlight makes plants survive, it wouldn't be "A" because sunlight doesn't decrease the size, and it wouldn't be "D" because the sunlight only makes it survive, not actually live longer. This means your answer is option B: they get more light.
Hope this helps
Have a great day (: