Answer:
B. Gravity held the pieces of forming planets together.
c. Gravity pulled most of the matter into the center of the solar system
D. Gravity caused the planets and Sun to have spherical shapes.
Explanation:
When a collection of grains pulled together by their gravitational forces would keep in by the gravity of a star, it would eventually became bigger to the point a planet was formed.
The sun's strong gravitational force pulled most of the matter around it to the center of the solar system.
The spherical shape of planets is a result of their gravity pulling equally from all sides, shaping it into a sphere.
The balanced equation is
<u>Explanation</u>:
We begin by balancing the C and the H atoms first,
Now, counting the number of O atoms on either side;
reactant side ---> 2
product side ----> 25
So,
⇒
<span>As water evaporated, it rises up to the sky and condenses to form clouds. This is known as "condensation," which is one of the steps in the water cycle. Once the collected droplets become too heavy to remain in the sky, they fall back down to earth. This is known as "precipitation."</span>
Well its not gravity if that helps any
Answer:
29.5
Explanation:
Given parameters:
Abundance of P- 30 = 65% = 0.65
Abundance of P-31 = 35% = 0.35
Mass number of P-30 = X
Mass number of P - 31 = 31
Relative atomic mass of substance = 30
Unknown:
Mass number of P-30
Solution:
To solve this problem, apply the formula below;
R.A.M = (mass number of P-30 x Abundance of P-30) + (mass number of P-30 x abundance of P-31)
Now insert the parameters and solve for X;
30 = (X x 0.65) + (31 x 0.35)
30 = 0.65X + 10.85
30 - 10.85 = 0.65X
19.15 = 0.65X
X = 29.5