Answer: Iridium
Explanation:
The atomic number of Iridium is 77.
Answer:
1.19 g
Explanation:
Given that:
Molecular weight of diene 136 g/mol
Molecular weight of Maleic Anhydride 96 g/mol
Mass of crude diene = 2.5 g
Percent of Composition for Peak A = 66%
Percent of Composition for Peak B = 22.66%
Percent of Composition for Peak C = 11.33%
Let us determine the amount of diene in the sample;
So, using to represent the amount of diene; we have :
=
=
= 1.65 g
Using the limiting reagent equation to determine the amount of Maleic Anhydride
=
=
= 1.19 g
The grams of Maleic Anhydride used to react with 2.5 g sample of crude diene = 1.19 g
The answer sould be Component of Thyroxine, Thyroxine contains iodine and are formed from thyronines, which are composed of two molecules of the amino acid tyrosine. Thyroxine contains four iodine atoms, and triiodothyronine contains three iodine atoms.
It is known as learned behavior. when you observe an animal, you learn from them. hope it helps:)
<span>The scientist is looking for the presence of carbohydrates. Iodine will react with starches in any object and will turn a dark blue or black color. If the substance in question doesn't have carbohydrates (or starches) present, the iodine will remain a dark brown color.</span>