Answer:
First one
Explanation:
Only answer that makes sense.
The statement which is true about a rhombus is that it <span>is a parallelogram that has all sides equal, opposite sides parallel, and diagonals bisect at right angles - so the second answer is the correct one.
Every rhombus has 4 equal sides, where the opposite ones are parallel. Its diagonals always bisect in the middle, creating a 90 degree angle. </span>
Answer:
The reason the compressed air gets cold after being used is due to a process known as adiabatic cooling, a property of thermodynamics. A gas, initially at high pressure, cools significantly when that pressure is released. The compression needed to turn a gas to liquid allows a large amount of gas to fit in a relatively small space, and when that gas is released to a large space, it rapidly expands to fill the space.
When atoms in a covalent bond share electrons unequally (one atoms pulls more than the other), the bond is said to be a polar bond is formed when electrons are unequally shared between two atoms. Polar covalent bonding occurs because one atom has a stronger affinity for electrons than the other (yet not enough to pull the electrons away completely and form an ion).
