how are minerals classified? question 3 options: a) based on their chemical structure b) based on solubility c) based on amount needed per day d) based on food source

Answers

Answer 1

Based on their solubility, minerals are divided into categories.

Depending on the quantity required by the body, minerals are either categorised as significant minerals or trace minerals. Based on their solubility, minerals are divided into categories. Major minerals are all those that must be consumed in dietary quantities more than 100 mg daily. These include calcium, phosphorus, magnesium, sodium, potassium, chloride, and sulfur. While vitamins are composed of the thirteen organic micronutrients that the body need for regular functioning, minerals are inorganic substances that are crucial to human nutrition. A mineral is an inorganic element and compound that occurs in nature and has a recognizable chemical composition, crystal structure, and physical characteristics. Quartz, granite, mica, actinolite, olivine, and calcite are examples of common minerals. Heiskanen defined classification as a process for dividing mineral combinations into two or more categories.

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Related Questions

Acetone (nail polish remover) has a density of 0.7857 g >cm3.
a. What is the mass in g of 28.56 mL of acetone?
b. What is the volume in mL of 6.54 g of acetone?

Answers

If acetone has a density of 0.7857 $\frac{g}{cm^{3} }$ the mass in grams of point A is 22.4 g and the volume at point B is 8.32 mL.

What is acetone?

Acetone is known as a chemical substance that is usually found in the environment but can also be produced artificially. Acetone is a polar organic product that interacts very well with water molecules, generating dipole-dipole relationships.It is colorless with a distinctive smell and taste, we find it in products known as cleaning and personal care products, but we can also use it as a solvent for substances.

Also in the environment in plants, trees and in volcano emissions or in forest fires, it does not become toxic in low doses but if it is exposed to an individual in high doses it can become fatal.

In the statement we can find that acetone has a density of 0.7857 $\frac{g}{cm^{3} }$.

Therefore, we can confirm that if acetone has a density of 0.7857 $\frac{g}{cm^{3} }$ the mass in grams of point A is 22.4 g and the volume at point B is 8.32 mL.

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Tow it's time to put all of the digestive anatomy and physiology rogether to get a "big picture" view of the digestive system. In this exercise you will trace the pathway that three different nutrients take from their ingestion at the mouth to their arrival at the heart. You will trace a cookie (primarily carbohydrates), an egg (primarily protein), and MATERIALS greasy fried food (primarily lipids). Laminated outline of the human body Water-soluble marking pens Along the way, detail the following for each 1. The anatomical pathway that each takes, from ingestion, through in passage through the alimentary canal, to its absorption into the blood, and finally to its passage through the blood until it reaches the heart. 2. The physical and chemical processes that break down each substance, including enzyme-catalyzed chemical Some hints: Don't forget that carbohydrates and amino acids travel through the hepatic portal system before they enter the general circulation. Remember that digestion and absorption are quite different for lipids. For example, fats are not absorbed into the intestinal blood capillaries. Use the text in Exercise 24-3 (p. 649) and your list of enzymes that you completed in Pre-Lab Exercise 24-3 (p. 628) for reference. Refer to the tracing exercises from Unit 18 (p. 486) and Unit 21 (p. 553) to review the pathway of blood and lymph flow through the body. You may find it helpful to physically trace the pathway on a laminated outline of the human body to better visualize the processes.

Answers

Tow it's time to put all of the digestive anatomy and physiology together to get a "big picture" view of the digestive system. The pathway that three different nutrients take from their ingestion at the mouth to their arrival at the heart: a cookie (primarily carbohydrates), an egg (primarily protein), and greasy fried food (primarily lipids).

Anatomical pathway:

a) Cookie (carbohydrates):

The cookie is broken down mechanically in the mouth through chewing and mixed with saliva containing salivary amylase, initiating the digestion of carbohydrates. The food bolus then travels down the esophagus through peristaltic contractions and enters the stomach.

In the stomach, gastric acid and enzymes continue to break down the carbohydrates. The partially digested food, called chyme, moves into the small intestine. In the small intestine, pancreatic amylase and brush border enzymes further break down the carbohydrates into simple sugars.

The final step is the absorption of these sugars through the intestinal epithelium into the bloodstream. From there, they are transported to the liver via the hepatic portal system and eventually reach the heart.

b) Egg (protein):

The egg is broken down mechanically and chemically in the stomach. The stomach secretes gastric acid and the enzyme pepsinogen, which is converted to pepsin, initiating protein digestion.

The partially digested proteins form chyme, which enters the small intestine. In the small intestine, pancreatic enzymes and brush border enzymes break down proteins into amino acids. These amino acids are absorbed through the intestinal epithelium into the bloodstream. They also travel through the hepatic portal system to the liver and then to the heart.

c) Greasy fried food (lipids):

The greasy fried food is mechanically broken down in the mouth and mixed with saliva. In the stomach, some emulsification of lipids occurs due to the agitation caused by gastric contractions.

However, the majority of lipid digestion occurs in the small intestine. Bile salts, produced by the liver and stored in the gallbladder, emulsify the lipids, increasing their surface area for digestion by pancreatic lipase. Pancreatic lipase breaks down the triglycerides into fatty acids and monoglycerides.

These products, along with bile salts, form micelles that allow for absorption through the intestinal epithelium. Once absorbed, the fatty acids and monoglycerides are reassembled into triglycerides, packaged into chylomicrons, and transported through the lymphatic system. Eventually, they reach the bloodstream, travel through the systemic circulation, and reach the heart.

Physical and chemical processes:

a) Carbohydrates:

The physical process of chewing breaks down the cookie into smaller particles, increasing its surface area. The chemical process involves the action of salivary amylase, gastric acid, pancreatic amylase, and brush border enzymes, which hydrolyze the complex carbohydrates into simpler sugars.

b) Proteins:

The physical process of chewing helps break down the egg into smaller pieces. The chemical process involves the action of gastric acid, pepsinogen, and pancreatic and brush border enzymes. These enzymes break down the proteins into peptides and amino acids.

c) Lipids:

The physical process of chewing and the mechanical mixing of lipids with saliva aid in breaking down the greasy fried food. The chemical process involves the emulsification of lipids by bile salts, the action of pancreatic lipase, and the formation of micelles. Pancreatic lipase hydrolyzes triglycerides into fatty acids and monoglycerides, which are then absorbed and processed into chylomicrons.

In conclusion, the digestive system is a complex and coordinated system

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Recycling of aluminum beverage cans is an example of the fact that Group of answer choices decreasing entropy is a spontaneous process. increasing entropy is a spontaneous process. decreasing entropy is a nonspontaneous process. increasing entropy is a nonspontaneous process.

Answers

Answer:

The correct option is;

decreasing entropy is a nonspontaneous

Explanation:

Recycling of aluminium beverage cans involves the process of remelting scrapped beverage after the cans were first produced and used initially

1) The cans are cut into pieces so as to make them more compact and accessible for cleaning

2) The cans are then blocked and melted by heating and the impurities and hydrogen gas are removed

3) The composition of the molten aluminium alloy is altered by the addition of the alloy composition to get the right specification of the alloy

4) The molten alloy can then be sent for usage where it will be processed into solid aluminium objects without the requirement for much energy addition

By the second law of thermodynamics, processes 1, and 2 which involve the addition of energy from the surrounding to decrease the randomness of the scrapped beer cans such that the entropy of the surrounding decreases are not spontaneous processes, while process 4 where the molten aluminium will be cooled down to form solid aluminium does not require energy input but adds energy to the surrounding in the surrounding's entropy, is therefore a spontaneous process.

Therefore, decreasing the entropy of the universe by heating aluminium to melt it is a non spontaneous process

Realice una historieta que resuma su comprensión acerca de la teoría atómica y los diferentes modelos atomicos que se

han propuesto a lo largo de la historia.

Answers

Respuesta:

Los modelo atómicos han permitido representar el modo de funcionamiento de los átomos. A lo largo de la historia han surgido un numero de modelos atómicos diferentes incluyendo los modelos de Bohr, Thomson, Rutherford, Sommerfeld, Dalton y Schrödinger.

Explicación:

El modelo atómico propuesto por John Dalton (1808) demostró que las sustancias químicas reaccionan en proporciones fijas y cómo mediante su combinación se producen elementos diferentes. Dalton fue el primero en postular la existencia de elementos indivisibles llamados átomos. A continuación, Thomson (1904) desarrolló un modelo en el cual el átomo estaba compuesto por protones con carga positiva y electrones con carga negativa los cuales se incrustaban uniformemente dentro de este átomo, asemejándose a las pasas de uva de un budín. En 1911, Ernest Rutherford desarrolló un nuevo modelo donde la masa principal del átomo tenía carga positiva y se localizaban en el núcleo, mientras que los electrones con carga negativa se posicionaban en la región externa del átomo. Subsecuentemente, Niels Bohr (1913) represento el funcionamiento del átomo de hidrógeno mediante un protón inmóvil en el núcleo atómico y un electrón girando a su alrededor. El modelo atómico de Sommerfeld permitió generalizar el diagrama de Bohr a otros tipos de átomos mas allá del Hidrógeno, incluyendo diferentes niveles energéticos para cada átomo particular. El modelo de Schrödinger (1926) permitió corregir aquellas discordancias surgidas del modelo atómico de Bohr. Schrödinger incluyó diferentes niveles y subniveles de energía a los electrones e incorporó órbitas elípticas a su movimiento, con lo cual permitiendo predecir los efectos relativos de los campos magnético y eléctrico sobre el movimiento de los electrones.

How many moles of Ar gas are
present in a container with a
volume of 78.4 L at STP?

Answers

Answer:

1 mole of a gas at STP occupies 22.4 L volume

Now the volume is given =78.4 therefore,

No. of moles of gas = 78.4 ÷ 22.4 = 3.5 moles

I hope it helps you~

explain how you would find the number of moles that are rpresented by a certaib nunver if reoresnetatuce oartuckes

Answers

To find the number of moles represented by a certain number of particles, you can use Avogadro's number and the concept of molar mass.

Avogadro's number (symbolized as N<sub>A</sub>) is a fundamental constant that represents the number of particles (atoms, molecules, ions, etc.) in one mole of a substance. It is approximately equal to 6.022 × 10²³ particles/mole.

Molar mass is the mass of one mole of a substance and is expressed in grams/mole. It represents the sum of the atomic masses or molecular masses of the constituent particles in a substance.

To calculate the number of moles, you can follow these steps;

Determine the number of particles you have (atoms, molecules, ions, etc.).

Identify the molar mass of the substance or the average molar mass if it's a mixture.

Divide the number of particles by Avogadro's number to convert them into moles. The formula is:

Moles = Number of Particles / Avogadro's number

Moles = Number of Particles / (6.022 ×10²³ particles/mole)

The result will give you the number of moles represented by the given number of particles.

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--The given question is incorrect, the correct question is

"Explain how you would find the number of moles that are represented by a certain number of representative particles."--

you make a 100 ml solution by dissolving 5g of a solid solute in water. the molar mass of the solute is 110 g/mol.What is the molarity?

Answers

The molarity to make a 100 ml solution by dissolving 5g of a solid solute is 0.45 M. It can be calculated by using molarity formula.

Molarity is the concentration of a solution in terms of moles of solute per liter of solution. It is denoted by the unit "M" (moles per liter).

The molarity of a solution can be calculated as the number of moles of solute divided by the volume of the solution in liters.

First, we need to determine the number of moles of solute:

5g / 110 g/mol = 0.045 moles

Next, we need to convert the volume of the solution from milliliters to liters:

100 ml * (1 L / 1000 ml) = 0.1 L

Finally, we can calculate the molarity:

0.045 moles / 0.1 L = 0.45 M

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What is the concentration of hydrogen ions in a solution with pH = 4. 282?

1. 92 x 10-10 M.

4. 28 M

1. 66 x 104 M

5. 22 x 10-5 M

Answers

The correct answer is option 4: 1.66 x 10^(-5) M.Concentration of hydrogen ions in a solution with pH = 4. 282 is 4: 1.66 x 10^(-5) M.

The concentration of hydrogen ions in a solution with pH = 4.282 can be calculated using the formula:

[H+] = 10^(-pH)

where [H+] represents the concentration of hydrogen ions.

Plugging in the given pH value:

[H+] = 10^(-4.282)

Using a calculator, we find:

[H+] ≈ 1.66 x 10^(-5) M

Therefore, the correct answer is option 4: 1.66 x 10^(-5) M.

Concentration of hydrogen ions in a solution with pH = 4. 282 is 4: 1.66 x 10^(-5) M.

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What are two thermal properties of water that make it unique?

Answers

The fact that water has a high melting and boiling point (0°C/32°F for melting and 100°C/212°F for boiling) makes it unique.

Where do melting and boiling points lie?

When a substance's solid and liquid phases are in equilibrium, that point is known as its melting point. When a substance's vapour pressure matches the outside pressure, that's when it reaches its boiling point.

What is another name for boiling point?

Saturation temperature is another name for boiling point. The pressure at when the measurement was made can occasionally be used to define boiling point. The standard boiling point is the temperature at which water begins to boil at one bar of pressure, according to the International Union on Pure an Applied Chemistry (IUPAC) definition from 1982.

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Balance the following equations

a.H2+O2 -> H2O

b.ZnS + O2 -> ZnO + SO2

Answers

Answer:

a. 2H2 + O2--> 2H2O

b. 2ZnS +3O2-->2ZnO +2SO2

Explanation:

note:

(when you put coefficients before the elements or the compounds you should multiply it by each element and the number that's on its right...

so if it's 2H2O

that is 2xH2 which is 4 hydrogen atoms

and 2 x O which is 2 oxygen atoms )

......

on the left side of the equation

there are two atoms of oxygen

but on the right side there's only one atom

so in order to balance them you have to put 2 as a coefficient for H2O

H2+O2 ->2H2O

so now you have 2 hydrogen atoms on the left side and 4 on the right side

you put 2 as a coefficient for H2

and now

there's 4 hydrogen atoms on both sides

and 2 oxygen atoms on both sides

you do the same here

ZnS + O2 -> ZnO + SO2

2 oxygen atoms ---> 3 oxygen atoms

ZnS + 2O2 -> ZnO + SO2

4 oxygen atoms ---> 3 oxygen atoms

ZnS + 2O2 -> 2ZnO + SO2

4 oxygen atoms ---> 4 oxygen atoms

but

1 Zn ---> 2Zn

2ZnS + 2O2 -> 2ZnO + SO2

2S --> 1S

2ZnS + 2O2 -> 2ZnO + 2SO2

2S--> 2S

but

4O---> 6O

2ZnS + 3O2 -> 2ZnO + 2SO2

Howie wants to know how many apples he could pick from his grandpa's orchard. There are 9 rows of trees and he can pick 925 apples from each row. Approximately how many apples can he pick in total? Round the larger factor to the nearest hundred to estimate.

Answers

Answer:

8,300

Explanation:

925*9 is 8325.

After you round to the nearest hundred, its 8,300.

Answer:

Explanation:

eggggggggggg

The volume of a sample of oxygen has increases from 88 ml to 130 ml. if the initial pressure was 1200 mmHg, what is the final pressure?

Answers

Answer:

To solve this problem, we can use Boyle's Law, which states that the pressure and volume of a gas are inversely proportional when temperature is held constant. This can be expressed as:

P1V1 = P2V2

where P1 and V1 are the initial pressure and volume, and P2 and V2 are the final pressure and volume.

We can plug in the given values and solve for P2:

P1 = 1200 mmHg

V1 = 88 ml

V2 = 130 ml

P1V1 = P2V2

1200 mmHg * 88 ml = P2 * 130 ml

105600 mmHgml = 130P2 mlmmHg

105600 / 130 = P2

P2 = 811.08 mmHg

Therefore, the final pressure is approximately 811.08 mmHg.

How many molecules are there in 4.00 moles of glucose, C6H1206?

Answers

Molecules in 4 moles of glucose are 24.088x10²³.

We need to find the number of molecules by applying the concept of moles

number of moles(n)= Number of Molecules(N)/Avogadro's Number(Nₐ)

n=N/Nₐ

4=N/6.022x10²³

N=24.088x10²³

Therefore, the number of molecules in 4 moles of Glucose is 24.088x10²³.

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On all aerosol cans you see a warning that tells you to keep the can
away from heat because of the danger of explosion. What is the
potential volume of the gas contained in a 500.0 mL can at 25°C if it
were heated to 54°C. In other words if the can could expand to allow
the gas to take up a greater volume, what would be the new volume of
the gas when heated as previously described?

Answers

Gas laws show the relationship between tempertaure, pressure, volume, volume and number of moles. The new volume of the gas is 549 mL.

What is Charles law?

Charles law states that, the volume of a given mass of gas is directly proportional to its temperature at constant pressure .

Given that;

V1 = 500.0 mL

T1 = 25°C or 298 K

V2 = ?

T2 = 54°C + 273 = 327 K

Since;

V1/T1 = V2/T2

V1T2 = V2T1

V2 = V1T2/T1

V2= 500.0 mL * 327 K/298 K

V2 = 549 mL

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Which statement describes a way in which a mole is useful

Answers

Answer:

A mole in chemistry is defined as the number or quantity of a chemical substance that consists of as many fundamental entities such as atoms, molecules, and ions. Therefore, the statement that best describes a mole is that, it is used for directly comparing the amounts of substances.

Explanation:

I found this hope it helps!! (read and try your best)

Th statement which describes a way in which moles is useful is that it can be used to keep track of chemical amounts.

What is mole?

Mole is unit to calculate the amount of chemical substances and it is represented as:
n = W/M, where

W = given mass

M = molar mass

It can be useful in chemical reactions to calculate the relative amount of species present before and after the reaction. In one mole of substance 6.022 × 10²³ atoms of that substance is present.

Hence, option (A) is correct.

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Which three terms name a domain of life

Answers

Answer:

Bacteria, Archaea and Eukarya are the three domains of life.

which is the best colored indicator to use in the titration of 0.1 m ch3cooh(aq) with naoh(aq)? why? look up ka values in the appendix. indicator pka bromocresol green 4.8 bromothymol blue 6.8 phenolphthalein 9.2 group of answer choices