It should be I, Br, Cl, F
Answer:
Option D.
Explanation:
Some of the alpha particles Rutherford shot at the gold foil bounced back, some scattered; but the majority of them went right through. That meant there had to be some sort of positively charged subatomic particle in there that pulled them through, but it had to be at the center and couldn't take up a lot of room.
Yes you balanced it correctly : CH₃CH₂CH₃ ₍g₎ + 5O₂ ₍g₎ -------> 3CO₂ ₍g₎ + 4H₂O ₍g₎
A hack to checking if its correct when they give you the structural formula of one of the species (CH₃CH₂CH₃) is to convert it to the molecular formula and if you get the same answer then it's correct.
So CH₃CH₂CH₃ is the struct-formula for the molec-formula C₃H₈
C₃H₈ + 5O₂ --------> 3 CO₂ + 4H₂O (which means your correct =D)
Answer:
The substrate must fit perfectly with an enzyme's active site this in known as the lock and key fit.
Explanation:
The lock and key model was given by the Emil Fisher. The lock is represent an enzyme which is complementary to its substrate and substrate is called key.
when an enzyme is used to catalyzed the reaction, there are active sites on the enzymes through which substrate bind. The active site have specific geometry which is complementary to the substrate so substrate perfectly fit into it.
It is resemble with the lock and key. As there is a specific key for a specific lock this model is just like this.
PHYSICAL and CHEMICAL PROPERTIES of sodium hydroxide!
Chemical formula: NaOH
Molecular weight: 40.01
Synonyms: White caustic, caustic soda, soda lye, lye
CAS number: 1310–73–2
Melting point: 318. 4°C
Boiling point: 1390°C
Specific gravity: 2.13
Solubility: Soluble in water, ethanol and glycerol; insoluble in acetone and ether