Answer:
one electron
Explanation:
An atom with potassium has one electron in its outer energy level. This isn't a sturdy outer energy level. Keep in mind that, with majority of the elements a stable outer energy level has 8 electrons. When it blends with iodine, potassium loses an electron from level 4
One explanation could be there was a chemical change which would create bubbles
Or they could be reacting to whatever it’s being stirred with
(Sorry of this doesn’t help much but the first one is definitely a possible answer!!)
I think its D answer
sorry I dont have explanation but I think its D
Answer:
The displacement is 145 m in the north direction and the distance is 355 miles.
Explanation:
The distance traveled by a mobile is the length of its trajectory and it is a scalar quantity. In other words, distance refers to the space traveled by an object during its movement. It is calculated as the sum of all the distances traveled. In this case:
250 miles + 105 miles= 355 miles
On the other hand, displacement refers to the distance from a start position to an end position regardless of the travel. That is, like distance, displacement is a measure of length. Instead, the displacement is a vector quantity that depends on the direction, so it is described from the magnitude and the direction.
Mathematically, the displacement d is calculated as:
d = df - di
where df is the final position and di is the initial position of the object.
In this case:
displacement= 250 miles - 105 miles= 145 miles
Since the north distance is greater than the south distance, then <u><em>the displacement is 145 m in the north direction and the distance is 355 miles.</em></u>
Answer:
Hydrogen in the core of the star is converted to helium by nuclear fusion. When the hydrogen supply in the core begins to run out, and the star is no longer generating heat by fusion, the core becomes unstable and contracts.
Explanation: i took the test
