Answer:
The charge on the ion is +3.
Step-by-step explanation:
We are given the following in the question:
Number of protons = 26
Number of electrons = 23
Charge on 1 proton = +1
Charge on one electron = -1
We have to calculate the total charge on the ion.
Total charge on ion =
=(Number oof proton)(Charge of proton) + (Number of electron)(Charge of electron)
Thus, the charge on the ion is +3.
Question 1:
We can use the rule of exterior angle of triangle, where the exterior angle is equal to the sum of the other 2 interior angles of the triangle except for the adjacent one.
So, we can calculate angle 1 by adding up the 2 given angles.
Angle1 = 62° + 57°
=119°
=answer C.
Question 2:
We can also apply the rule above, but first we have to calculate the remaining angle of the triangle first.
For this, we have to use the angle sum of triangle. All 3 interior angles of triangle should add up to 180°.
Let that remaining angle be x.
X = 180° - 62° - 57°
X=61°
Now we can apply the rule of exterior angle of triangle.
Angle 1 = 62° + 61°
=123°
=answer D.
Answer:Communative
Step-by-step explanation:
Answer:
X-intercept is 5
Step-by-step explanation:
find the x-intercept let y=0
x+2(0)=5
x+0=5
x=5
