Size (length+width) approx.
D) 1 and 4
Chromosomes are made up of DNA. DNA strands contain short segments called genes.
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:
It creates oxygen which every living thing needs to live. i hope this helps! :)
Answer: It's 2:2
Explanation: you can look at the coefficient stands in front of the chemical
For example if they ask the ratio of oxygen to sulfur trioxide, it would be 3:2 and vice versa vv..
