which of the following correctly describes an Arrhenius acid?

The web's connectivity advantage allows for data and resource sharing that enables communication with a website.

In our daily lives, communication helps us build relationships by allowing us to share experiences and needs and connect with others. It is the essence of life that allows us to share We all need to communicate.

In our daily lives, communication helps us build relationships by allowing us to share experiences and needs and connect with others. It is the essence of life that can be shared. We all need to communicate. Effective communication results in a sense of satisfaction and accomplishment for all involved. Clearly communicating your message leaves no room for misunderstandings or message changes, and reduces the chance of conflicts.

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In the bottle active ingredient are 1.9mL

The concentration in percent by volume can be expressed in the volume of the solute in mL per 100 mL of the solution. as such for a cough syrup with a concentration of 5.00 percent by volume, for every 100 mL of the solution, there are 5.00 mL of the active ingredient. from this the volume of the active ingredient in 38.0 mL of the cough syrup will be calculated as:

Volume of active ingredient = 38.0 mL × 5.00mL / 100mL = 1.9ml

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Most americans overconsume calcium. fiber. added sugars. potassium because in calcium, fiber added sugars, potassium has an healthy and nutrition food and it does't cause diseases.

Adequate intake of calcium is necessary for bone health as well as for basic biological functions such as nerve transmission, vasoconstriction, vasodilation, and muscle contraction. adequate potassium intakes are associated with optimal blood pressure and may reduce the risk of developing kidney stones and bone loss. fiber may protect against cardiovascular disease, obesity, and type 2 diabetes, and it is essential for digestive health. that's why most american's overtake this calcium, fiber added sugars, potassium

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Answer:

earning

Explanation:

yeah its ok

An example of a pair of isotopes of the same element is Hydrogen and Deuterium. They are similar because they have same atomic number and they are different because they have different mass number.

Hydrogen is a chemical element with the atomic number 1. It is represented with symbol H. Mass number of hydrogen is 1. Hydrogen belong to group 1. It belongs to period 1. Hydrogen is s-block element.

Deuterium is isotope of hydrogen. The atomic of deuterium is 1. The mass number of deuterium is 2. It is also known as heavy hydrogen. It is represented as D or 2H.

Thus from the above conclusion we can say that a pair of isotopes of the same element is Hydrogen and Deuterium.

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The factors might include:

What is Error in measurement?

Error in Measurement can be defined as difference in value between the actual value and the measured value.

There are some factors that might have contribute to the inaccuracy in the measurement of the metal block and they include :

The students may have have used a faulty instrument or an inaccurate instrument. The accuracy of the measurement will depend on the kind of scale they used. A kitchen scale, for example, is probably less accurate than a calibrated scale in a chemistry lab.

Random errors occurs when there might have been an error due to inability to read the accurate value of the instrument.

Density varies with temperature and their might have been slight changes in temperature leading to inaccuracy in the readings.

In conclusion, errors can be mitigated by taking into account when we make a measurement by reporting an uncertainty value.

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The correct answer is 0.15.

We are aware that there is 0.05 mol of an unidentified hydrocarbon we will refer to as "X" and that its burning produces 6.6 g of carbon dioxide and 3.6 g of water.

These quantities might be converted to moles by applying the following formula:

amount= mass/ relative atomic mass

Thus, the following equation may be written for H2O: moles = 3.6 / 18 = 0.2 and for CO2: moles = 6.6 / 44 = 0.15.

0.05X + x'O2 = 0.15CO2 + 0.2H2O

This may be made simpler by dividing through by 0.05 (this step is likely to be the most helpful to you), resulting in:

1 x + x O2 = 3 co2 + 4 H2O

The hydrocarbon must have been the source of all the carbon in the carbon dioxide and all the hydrogen in the water.

Accordingly, 4 x 2 = 8 moles of H and 3 x 1 = 3 moles of C.

There are 3/1 = 3 Cs and 8/1 = 8 Hs in one X molecule.

This clearly identifies C3H8 or propane as the hydrocarbon X (dividing by 1 seems unnecessary, but it illustrates the process to use if there were more than one mol of X in the first equation).

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The small intestine is the site of digestion and absorption of minerals and vitamins and the rest of the water material is passed into the large intestine.

The small intestine has a highly coiled structure of about 7.5 meters in length. In the small intestine, the acidic chyme is mixed with pancreatic juice, bile juice, and intestinal juice and comes into contact with the enterocytes present in the villi. Digestion of all nutrients is complete. Carbohydrates get broken down into monosaccharides. Proteins are broken down into amino acids. Absorption of nutrients through the enterocytes occurs through diffusion, osmosis, facilitated diffusion, and active transport. Water present in the digested food is absorbed by osmosis. Smaller fat-soluble substances (fatty acids and glycerol) diffuse through the cell membranes. Larger molecules are transported inside the villi by other transport mechanisms.

Monosaccharides and amino acids move into the blood capillaries present in the villi. Fatty acids and glycerol move into the lacteals and the thoracic duct through the lymphatic vessels. From there, they enter circulation. Some proteins are absorbed unchanged. For example, antibodies present in breast milk or poliomyelitis vaccine are absorbed directly. Vitamins, minerals, and water are absorbed from the small intestine into blood capillaries. Fat-soluble vitamins are absorbed along with fatty acids and glycerol into the lacteals. Vitamin B2 is absorbed in the terminal ileum. Out of all the fluid entering the alimentary tract every day, only 1500 ml is not absorbed in the small intestine and passes into the large intestine.

Therefore, the small intestine is the site of digestion and absorption of minerals and vitamins and the rest of the water material is passed into the large intestine.

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The density is 3.193 × 10^15 g/cm3.

Given;

Diameter = 1 x 10-13 cm

Mass = 1.673 x10-24 g

Volume = 4/3πr^3

Volume = 4/3 × 22/7 × (1 × 10^-13 / 2)^3

Volume = 11 × 10^-39 / 21

Density = Mass / Volume

            = 1.673 x10-24 / 11 × 10^-39 / 21

Density = 3.193 × 10^15 g/cm3

What is density?

The amount of objects, including people, animals, plants, and other living things, that are present in a region is known as the density. The number of objects is divided by the area to determine density. The number of inhabitants in a nation divided by its size, measured in square kilometers or miles, is the population density of that nation.

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Hg is a heterogeneous mixture, not a homogeneous mixture.

In chemistry, a mixture is a substance consisting of two or more different chemical substances that are not chemically combined. A mixture is two or more substances physically combined in which they retain their identity and are mixed in the form of solutions, suspensions, and colloids.

A mixture is formed when two or more different substances are physically combined and can be separated into their original substances. A chemical reaction occurs when two or more substances combine to form a new substance that cannot be converted back into the original substance.

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If two atoms have the same number of protons in their nucleus, and different no. of neutrons, then they're called isotopes.

What are isotopes?

The term "isotope" refers to an element's atoms that have the same number of protons but differing numbers of neutrons. Because they have the same number of proton, they remain the same element.

The amount of neutrons varies among different isotopes of a given element, resulting in variations in atomic mass. They also differ in the abundance of the surrounding environment.

Therefore, two atoms of the same element with the same number of protons and different number of neutrons are called isotopes.

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Answer:

C

Explanation:

For electromagnetic waves frequency X wavelength = speed of light

                                                f * 2.2 x 10^-11  = 3 x 10^8  m/s

                                         f = 3 x 10^8 / 2.2 x 10^-11

                                            = 1.36 x 10 ^19

                                             = 1.4 x 10^19   with two significant digits

Answer: it's not C, it is A.

Answer:

Tug of War

An object sinking in water

Kicking a ball

Answer:

turning a cartwheel.

riding a skateboard.

a football sailing toward the goalpost after it is kicked