To convert oxygen gas to solid, we need to continuous withdrawal of heat from the gas by cooling.
<h3>What makes up matter?</h3>
Matter is composed of particles and these particles that compose matter are always in constant motion. This is the main thrust of the so called Kinetic Theory of Matter.
Now we know that the particles that compose a solid are held in a fixed position thus they spread out or expand when heated. The particles of a liquid tend not to be held in fixed positions thus they can be poured.
Given that oxygen has a boiling point of -219°C and a freezing point of -183°C, it follows that at 0°C is a gas and at -200°C, oxygen is a liquid.
To convert oxygen gas to solid, we need to continuous withdrawal of heat from the gas by cooling.
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Answer:
110 degree
Explanation:
This is because Hybridization of an s orbital with all three p orbitals (px , py, and pz) results in four sp3 hybrid orbitals. sp3 hybrid orbitals are oriented at bond angle of 109.5 degrees from each other. This 109.5 degrees gives an arrangement of tetrahedral geometry
<span>1.Which best explains why ionization energy tends to decrease from the top to the bottom of a group?
D.Electrons get farther from the nucleus. </span>They experience a weaker attraction to the positive charge of the nucleus.<span>
3.When electrons are removed from the outermost shell of a calcium atom, the atom becomes
D. a cation that has a smaller radius than the atom. </span><span>Since the atom is losing an electron, it not only becomes positively charged, also the effective nuclear charge diminishes making the remaining electrons aproach the nucleus.</span>
The alkali metals are first column, alkali earth 2nd, halogens 2nd to last, and noble gases last. Hope it helps!