Answer: ENERGY: A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another; the levels in the food chain are producers, primary consumers, higher-level consumers, and finally decomposers. These levels are used to describe ecosystem structure and dynamics.
MATTER: When one organism eats another, the matter, or carbon, nitrogen, and other essential elements, are transferred from one to the other. These elements move from the producers, to the consumers, and eventually to the decomposers, cycling the matter through the ecosystem.
Explanation: look up
Hi there!
There is a total of 22 atoms in this compound. (Add all the numbers)
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The stable form of Nitrogen is N-14 and N-15.
- Nearly all proteins contain nitrogen, which is crucial for biochemical processes as well as industrial processes.
- Due to its capacity to form a triple bond with both itself and other elements, nitrogen forms strong bonds. As a result, nitrogen compounds contain a lot of energy. Little was known about nitrogen before one hundred years ago.
- More than 99 percent of all nitrogen found on Earth is found in the most abundant form of nitrogen, nitrogen-14. non-radioactive and stable, it is a substance.
- The most widely used form of nitrogen, 14, is used in biochemicals, biomedical research, food preservation, and agricultural practices.
- The second stable state of nitrogen is nitrogen-15. It is frequently employed in medical preservation and research.
To learn more about nitrogen compounds-
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Answer : Carbon tetrachloride, will show the greatest freezing point lowering.
Explanation :
For non-electrolyte solution, the formula used for lowering in freezing point is,
where,
= lowering in freezing point
= molal depression constant
m = molality
As per question, the molality is same for all the non-electrolyte solution. So, the lowering in freezing point is depend on the only.
That means the higher the value of , the higher will be the freezing point lowering.
From the given non-electrolyte solutions, the value of of carbon tetrachloride is higher than the other solutions.
Therefore, Carbon tetrachloride, will show the greatest freezing point lowering.
Answer:
19.3 g/cm³
Explanation:
From the question given above, the following data were obtained:
Mass of nugget of gold = 965 g
Volume of nugget of gold = 50 cm³
Density =?
The density of a substance is simply defined as the mass of the substance per unit volume of the substance. Mathematically, it is expressed as:
Density = mass / volume
With the above formula, we can obtain the density of the nugget of gold as illustrated below:
Mass of nugget of gold = 965 g
Volume of nugget of gold = 50 cm³
Density of nugget of gold =?
Density = mass / volume
Density of nugget of gold = 965 / 50
Density of nugget of gold = 19.3 g/cm³
Thus, the density of the nugget of gold is 19.3 g/cm³.