Answer:
sory Idont know Iwish you answer this question
Most ionic compounds fall in the category of chemicals called salts. ... Electrolytes, or in other words compounds that are ionizable in solution, play an essential role in many body functions. Cells create electrical energy as ions move from the solutions inside the cells of our body<span> to the solutions outside the cells.
I hope my answer has come to your help. God bless and have a nice day ahead!
</span>
Hey there!
Your correct answer will be B., D.
The reason that A. and C. are not true is this:
For A.: Electronegativity gets higher as you move up and to the right on the periodic table. This means that, generally, the bigger molecules have a <em>smaller </em>electronegativity number.
For C.: This is simply the reverse of the correct statement. Ionization energy is the energy to <em>take away </em>a(n) electron(s) of an atom.
I hope this helps!
Brady
Answer:
x = 1, -7.5
Explanation:
2x² + 13x = 15
Divide the left side of the equation by 2
2(x² + 6.5x) = 15
Divide 6.5 by 2 and square the quotient
6.5/2 = 3.25
3.25² = 10.5625
Add 10.5625 to the left side
2(x² + 6.5x + 10.5625) = 15
Since you have a 2 outside the parentheses, you will be adding 10.5625•2 to the right side.
10.5625 • 2 = 21.125
2(x² + 6.5x + 10.5625) = 36.125
To factor (x² + 6.5x + 10.5625), add b/2 to x
b/2 = 6.5/2 = 3.25
2(x + 3.25)² = 36.125
Divide by 2
(x + 3.25)² = 18.0625
Square root.
(x + 3.25) = √18.0625
x + 3.25 = ±4.25
Subtract 3.25.
x = 4.25 - 3.25 = 1
x = -4.25 - 3.25 = -7.5
x = 1, -7.5
1. color of the rock
2. shape of the rock
3. how the rock is formed
4. who discovered the rock
that is it