Answer:
Answer is A
Explanation:
Urea consists of carbon, nitrogen and oxygen. You can find it in urine, sweat, blood and milk in mammals. In its most concentrated form, it is urine. Urea is a crystalline compound, and the nitrogen content is always at least 46 percent when dry.
Compounds consist of atoms of different elements. In compound the atoms are present in fixed proportion. By changing the proportion compound will changed. For example,
Nitrogen and oxygen reacted to form the compound. By changing the proportion both will form different compound.
NO₂
Nitrogen dioxide consist of one atom of nitrogen and two atoms of oxygen. Their ration is 1 :2
NO
In nitric oxide one atom of oxygen and one atom of nitrogen are present.
Their ratio is 1 : 1.
N₂O
Nitrous oxide consist of two nitrogen atoms and one oxygen. Their ratio is
2 : 1
N₂O₄
Dinitrogen tetroxide consist of two nitrogen atoms and four oxygen atoms. Their ratio will written as 2 : 4
N₂O₅
Dinitrogen pentoxide consist of two nitrogen atoms and five oxygen atoms. Their ratio will written as 2 : 5
Answer:
consisting of one new and one old chain of nucleotides.
is described as semi-conservative, half of the chain is part of the original DNA molecule, half is brand new.
The goal of the World Resources Simulation Center (WRSC) is best described as: C. determining how to manage global resources for all humanity.
<h3>What is the World Resources Simulation Center (WRSC)?</h3>
The World Resources Simulation Center (WRSC) can be defined as a non-profit visualization and simulation facility that is saddled with the responsibility of availing individuals an opportunity to view critical trends about global global resources.
This ultimately implies that, the goal of the World Resources Simulation Center (WRSC) is best described as determining how to manage global resources for all humanity.
Read more on global resources here: brainly.com/question/18951815
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Solutions that have more or greater concentration of hydroxide ions (OH-) than hydrogen ions (H+) are basic or alkali in nature. They showcase the properties of a base and not of an acid.