Answer:
Option A. Double Replacement
Explanation:
A double displacement reaction is a kind of reaction in which there is an exchange of the ions of the two reactants to form a different products. In the equation, K in KOH displaces H in H3PO4 to form K3PO4 and also, the H combines with OH to form water.
H3PO4+3KOH -> K3PO4+3H20
<em>9. A</em>
<em>10. B</em>
<em>11. B</em>
<em>12. C</em>
<em>13. D</em>
<em>14. C
</em>
I hope this helped! (:
An object will not move if:
A.) All forces acting on it are balanced.
This can be proved by example, while similtaneously proving the other answers wrong.
Take for example;
Two people are pushing on a box with 30N, one person being on the right, the other being on the left.
The opposing forces are exerting against eachother, creating a stable position on the box.
How about "if there was no gravity on it"?
Take for example an airplane. Turbulence effects the plane even when it's defying gravity.
The next two are easy to debunk.
"It's mass increases"
This can be disproved by anything.
If I were to become bigger, I'm not moving, my body is just extending in size.
This also applies to weight.
The answer is A.)
I hope this helps!
In what compund is it a part of?
Answer:
3.990225 grams
Explanation:
<u>Remember</u>: Morality = Moles/Liters
<u>And you are given:</u>
100 mL and 0.25
<u>what you want:</u>
Grams
SOOOO.....
convert the 100 ml to L
100 / 1000 = .1 L
now that you have Liters and Morality put it into the equation
0.25 M = Moles/ .1 L
0.25 * .1 L = .025 moles
now you take this and turn it into grams
0.025 moles / molar mass = grams
0.025 moles / 159.609 g = 3.990225 grams