Explanation:
The atoms of elements on the same period on the periodic table typically have the same number of valence electrons.
They have the same electronic configuration.
Valence electrons are electrons in the outermost shell of an atom.
The number of electrons in an atom is a good indicator of elements that might potentially belong to the same group.
The answer is convection<span>. The convection force is originated inside the fluid bodies (inside the Earth, in this case) and is due to the difference of densities generated by the difference in temperatures. This is the same force that affects the current of waters and the winds. The mechanism proposed is that the very hot rocks deep in the Earth have a lower density than upper rocks, so those hot rocks (not liquid due to the high pressures) tend to move upward leaving a void. The void will be filled by the next rocks close to the void and that generate a circular pattern that press the rocks to move.</span>
Answer:
When the denser tectonic plate dives beneath another plate it is due to the high energy by the Earth’s gravity that pushes into the mantle. Earth’s tides, which are caused by a gravitational tug of the Moon and the Sun, also put extra strain on geological faults. how to prepare for an earthquake
Explanation:
We will use Boyle's law. P = 1/V which simply means pressure is inversely proportion to volume at a constant temperature. We will assume temperature here does not change. Since we have two pressure/volume points, we use this version of Boyle's law.
P1 V1 = P2 V2
P is pressure and V is volume
In our case:
P1 is 736, V1 is 4.2 while V2 is 9.0 but P2 is unknown. This is what we need to find out.
736 * 4.2 = P2 * 9.0
P2 = 736 * 4.2 / 9.0
P2 = 3091.2 / 9.0
P2 = 343.5
Therefore the new pressure 343 mm/hg
Here we see that the increase in volume causes decrease in pressure in total agreement with Boyle's law.
The coefficients next to the symbols of entities indicate the number of moles of a substance produced or used in the chemical reaction.
