Answer:Butane > ethane > methane, because between bigger molecules there are stronger van der Waals forces and also higher molar mass means they need to be given more energy to have enough kinetic energy to move quickly, freely in gas.
There are multiple butene isomers (Butene) and some (2-Butenes - cis and trans) actually have higher boiling point than n-Butane (there is also Isobutane, of course, with quite much lower boiling point than all of them) and some (1-Butene, Isobutylene) have lower, so this isn't really a fair or simple question. But on simplest level, it can again be said that 1-butene has lower boiling point because it has very similar shape but slightly lower molar mass (2H less) than n-butane.
Explanation:
Answer:
Solution
Explanation:
Compound - a chemical substance made by elements of different densities to form a chemical union.
Element - Any one of the simple chemical substances that can't decompose in a chemical reaction
When a red blood cell<span> is </span>placed<span> in a </span>hypertonic solution<span>, it shrinks as water is drawn
</span> cells<span> change size when </span>placed<span> in </span>solution<span> with different </span>salt<span> concentration is due </span>
<h3><u>Answer;</u></h3>
c) 4
<h3><u>Explanation;</u></h3>
- An unpaired electron is an electron that occupies an orbital of an atom singly, rather than as part of an electron pair.
- To find out if the electrons inside an orbital are paired or not you need to find out the maximum electrons the subshell can hold. If the electrons in the subshell are less than the maximum electrons it can hold the electron in any of the orbital can be unpaired.
- Oxygen, O, has two unpaired electrons.
- Carbon, C, has two unpaired electrons
- Ti and Si have two unpaired electrons