This is something I have no idea
Answer:
-2
Explanation:
Since its a compound, it's charge is 0.
So, there are 2 Fe and 3 Oxygen,
let x = oxidation number of oxygen
2(+3) + 3x =0
x =-2
Side note : even if the oxidation number is positive, make sure to put the positive sign like how you would in numbers
<span>Radius, the distance from the centre = 0.390
Electric field is equal to half of the magnitude. E2 = E / 2
Given
E1 = E2
E1 = k x Q / r^2
E2 = (k x Q / r2^2) / 2
Equating the both we get 2 x r^2 = r2^2
r2 = square root of (2 x r1^2) = square root of (2) x r = 1.414 x 0.390
r2 = 1.414 x 0.390 = 0.551 m</span>
The correct answer would be the sun
That depends on where you weigh it.
-- On Earth, it weighs 9.807 newtons (2.205 pounds).
-- On the moon, it weighs 1.623 newtons (5.84 ounces).
-- On Jupiter, it weighs 24.79 newtons (5.57 pounds).
BTW ... 1,000 grams of mass is called ' one kilogram '.
