Answer:
density of oxygen = 1.307 g/l
Explanation:
given pressure = 1 atm temperature = 298 k
PM=DRT
where p is pressure M is molecular mass D is density R is gas constant and T is temperature
substituting the values in the equation
D = 1.307 g/l.
The law of conservation of mass maintains that in all chemical reactions mass is conserved, this ensures that chemical reactions are balanced.
<h2>What is the law of conservation of mass?</h2>
It is a principle of chemistry that states that the quantities of the masses involved in a given reaction must be constant, that is, the quantity of reactants consumed is equal to the quantity of products formed.
<h3>Characteristics of the law of conservation of mass:</h3>
- The chemical composition of a substance remains constant.
- In a chemical reaction certain coefficients are used to balance the equation and this will allow the number of atoms to be equal on both sides.
Therefore, we can conclude that the law of conservation of mass is the one that holds that, within a closed system, the amount of matter before and after a transformation is always the same.
Learn more about the law of conservation of mass here: brainly.com/question/20081187
Answer:
The carbon cycle mainly is the relationship among carbon dioxide, glucose and carbon.
Explanation:
The carbon cycle as a reference point we can say that it starts in air, with the carbon dioxide dissolved in it. Plants or phytoplancton can absorbed it to transform into glucose or other organic compound useful for plants of plancton. During this process the carbon cycle is closely related with oxygen cycle and metabolic processes in living things.
After the carbon is absorbed it can be regenerating as carbon dioxide by bacteria or animals to the air after getting the sufficient carbon for the glucose structure or another organic compound necessary for these living things.
The other way of carbon, is that can be deposit in soil as carbon and with time can be transformed into oil by bacteria but in an anaerobic environment not in an aerobic environment.
Answer:
-Grignard reagents are strong bases (third choice)
-Grignard reagents are strong nucleophiles ( second choice)
