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Which four elements comprise approximately 96 percent of body weight?

The four elements are oxygen, carbon, hydrogen, and nitrogen. They are the most abundant elements in the human body and make up approximately 96 percent of its mass.


In and adult male the skin can comprise what percentage of the total body weight?

it equals a total percent of 7


Can dissolved gases comprise up to a few percent by weight of magma?

No, dissolved gases typically comprise only a small fraction of a percent by weight of magma. The most common dissolved gases in magma are water vapor, carbon dioxide, and sulfur dioxide. In some cases, the gas content can increase just before an eruption, leading to explosive volcanic activity.


What is the 12 elements that together account for 0.7 percent of the body weight with each accounting for no more than 0.02 percent?

trace elements


What is the difference between atomic percent and weight percent?

Atomic percent is based on the number of atoms in a sample. So if the sample has x number of oxygen atoms and x number of iron atoms it would report 50% oxygen and 50% iron (atomic percent). Weight percent is based on the mass of the elements detected. So if we used the above example and reported the results as weight percent we would get 22.3% oxygen and 77.7% iron. Weight percent takes into consideration the mass or atomic weight of the elements and not just the number of atoms. Most people use weight percent although for chemistry atomic percent may be more useful.


What is the empirical formula of a substance that is 53.3 percent c 15.5 percent h and 31.1 percent n by weight?

The most simplified ratio of the elements in the substance is approximately C3H7N. This is determined by dividing the percent composition of each element by its molar mass and finding the simplest whole number ratio.


What element represents less than 0.01 percent of body weight?

Iodine represents less than 0.01 percent of body weight.


What are inorganic substances that account for approximately four percent of your body weight?

Minerals


What are the Inorganic substance that account for approximately four percent of your body weight?

Minerals


What percent of body weight is your gluteus?

The gluteus muscles make up approximately 16-20% of total body weight in humans.


What is weight of 2 mole percent of molecular iodine?

.005078 g is the weight of 2 mole percent molecular iodine.


How many percent of water in mandarin?

Mandarins are approximately 85-90% water by weight, making them a hydrating and refreshing fruit.