Which of the following is NOT a property of table sugar?


white


sweet


soft


dissolves in water

If one does not observe any difference in the TLC after 20 minutes, it shows that the reaction was not carried out or did not take place.  In such a case, one should repeat the reaction under optimal conditions.

In such a case, you should consider rechecking the reaction or the analytical technique used. This situation suggests that the reaction may be unsuccessful due to a technical issue such as failure to provide necessary conditions for the reaction to occur. It may also imply that the reaction being analyzed did not undergo any significant transformation, hence no difference was observed.

One can solve this problem by changing the solvent and considering the pH of the solution to provide optimal conditions for the reaction to occur. A more sensitive analytical method could also be employed to detect small changes or differences. The primary cause of the orange color is impurities present in the product, which are subsequently reduced to form the final product through sodium bisulfite treatment. When cooled, if no crystals form, it indicates that the product did not form, and the reaction did not take place.

This can result from an incorrect ratio of reactants, the purity of reagents, or incorrect reaction conditions. In such a case, one should repeat the reaction under optimal conditions.

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The mass percentage of silver in the salt is 8.18%.

Given that 3.14 g of a silver salt (AgX) is dissolved in 720.0 mL of water. A current of 2.81 A, applied for 805 s, is required to plate out all of the silver in the solution.

We are required to determine the mass percentage of silver in the salt.Main answer:Let's first calculate the amount of silver deposited using Faraday's laws of electrolysis:

From Faraday's first law of electrolysis,mass of silver deposited = ItM / 96500where I = current = 2.81 A, t = time for which current is passed = 805 s, M = molar mass of silver = 107.87 g/mol and 96500 C = 1 mol of electrons.

So, mass of silver deposited = (2.81 A × 805 s × 107.87 g/mol) / 96500= 0.256 g.

Now, let's determine the mass percentage of silver in the salt.

Mass percentage of silver in the salt can be calculated as:mass percentage = (mass of silver / mass of AgX) × 100where mass of silver = 0.256 g and mass of AgX = 3.14 g.

Therefore, mass percentage = (0.256 g / 3.14 g) × 100= 8.18%

The given question is based on Faraday's laws of electrolysis, which helps us to determine the amount of metal deposited during electrolysis.

According to Faraday's laws of electrolysis, the amount of metal deposited is proportional to the quantity of electricity passed through the electrolyte.

Hence, we have used Faraday's laws to determine the amount of silver deposited by applying a current of 2.81 A for 805 s.

From the calculation, we have obtained that 0.256 g of silver has been deposited on the cathode. Now, we are required to determine the mass percentage of silver in the salt.

The mass percentage can be calculated as the ratio of the mass of silver deposited to the mass of AgX taken initially multiplied by 100.

From the calculation, we have obtained that the mass percentage of silver in the salt is 8.18%.Hence, the mass percentage of silver in the salt is 8.18%.

The mass percentage of silver in the salt is 8.18%. This answer has been calculated using Faraday's laws of electrolysis, which helps in determining the amount of metal deposited during electrolysis.

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Answer:

Because matter cannot be destroyed or created, It can change form through physical, chemical changes but the matter never gets destroyed or created.

Explanation:

Answer:

This is just my guess, but since opposites attract, then im guessing that alikes repel each other. So, they will go away from each other when the ball is released (I think).

Explanation:

Hope this helps! If it did, please mark it as brainliest! It would help a lot! Thanks! :D

Answer:

P3

Explanation:

Im pretty sure hope this helps

Answer:

The difference between liquid nitrogen and nitrogen gas is liquid nitrogen gas is man made or caused by humans but, nitrogen gas takes place naturally in the earths atmosphere.

Explanation:

Hope this helps :)

The difference between liquid nitrogen and nitrogen gas is their physical state at different temperatures and pressures. Nitrogen gas is the gaseous form of nitrogen at room temperature and standard pressure, while liquid nitrogen is the extremely cold liquid form of nitrogen achieved at very low temperatures.

Liquid nitrogen and nitrogen gas are both forms of the chemical element nitrogen, but they exist in different physical states due to differences in temperature and pressure.

Nitrogen Gas;

Nitrogen gas is the gaseous form of nitrogen at room temperature and standard atmospheric pressure.

It is a colorless, odorless, and non-flammable gas.

Nitrogen gas makes up about 78% of Earth's atmosphere and is an essential component for life.

It is often used in various industrial processes, such as purging, inerting, and blanketing, due to its non-reactive nature.

Liquid Nitrogen;

Liquid nitrogen is the liquid state of nitrogen achieved at extremely low temperatures.

It is obtained by cooling nitrogen gas to its boiling point, which is approximately -196 degrees Celsius (-321 degrees Fahrenheit) at atmospheric pressure.

Liquid nitrogen is extremely cold and can cause severe frostbite or freezing of tissues upon contact with skin.

It is used in a wide range of applications, including cryopreservation of biological samples, cooling of sensitive equipment, and in the culinary industry for instant freezing.

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The volume of the gas in the ball will decrease if the temperature drops down to 250 Celsius, assuming the pressure remains constant. The volume of the gas in the ball will be 83.3 ml.

According to Charles's law, the volume of a gas at constant pressure is directly proportional to its absolute temperature.

As the temperature decreases from 300K to 250K, the volume of the gas in the ball will decrease as well.

Assuming the pressure remains constant, the final volume of the gas can be calculated using the formula V2 = V1 x T2/T1, where V1 is the initial volume, T1 is the initial temperature in Kelvin, T2 is the final temperature in Kelvin, and V2 is the final volume of the gas.

Plugging in the values, we get V2 = 100 ml x 250K/300K = 83.3 ml.

Therefore, the volume of the gas in the ball will be 83.3 ml if the temperature drops down to 250 Celsius, assuming the pressure remains constant.

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Answer:

a

Explanation:

Answer:

Gain 3 electrons.

Explanation:

If element X have 5 valence electrons it will more than likely gain 3 electrons to fill its octet to become stable. Gaining the 3 electrons is much easier for the atom than if it were to give away it's 5 valence electrons. Elements with 5 valence electrons that could represent element X are:

\(oxidation \: number \: of \: oxygen = \\ before \: rxn = - 2 \\ after \: rxn = - 2\)

\(oxidation \: number \: of \: hydrogen = \\ before \: rxn = + 1 \\ after \: rxn = \\ 2x - 2 = 0 \\ x = + 1\)

\(oxidation \: number \: of \: carbon = \\ before \: rxn = \\ x - 6 = - 2 \\ x = 4 \\ after \: rxn = \\ x - 4 = 0 \\ x = 4\)

\(oxidation \: numbers \: remain \: constant \\ so \: none \:a re \: undergoing \: oxidation \: \\ nor \: reduction \: \)

Answer:

D

Explanation:

I believe that is the answer

The answer is 25 grams for this question

Answer:

overflow the top edge of the filter paper

Out of given data, all data is close to actual value, so all are precise but only first data is very much close to actual value so it is accurate.

When measuring data, precision and accuracy are two crucial considerations. Both precision and accuracy indicate how closely a measurement comes to the real value.

But accuracy also indicates how closely a measurement resembles a known or recognized value, while precision indicates how repeatable a measurement is, even if it is far from the acceptable value. Out of given data, all data is close to actual value, so all are precise but only first data is very much close to actual value so it is accurate.

Therefore, out of given data, all data is close to actual value, so all are precise but only first data is very much close to actual value so it is accurate.

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Non-ferrous metals typically become stronger when heated and quenched.

Non-ferrous metals are metals or alloys that do not include iron (or iron allotropes, such as ferrite, etc.) in significant quantities.

Non-ferrous metals are employed because they have desired qualities like reduced weight (for example, aluminium), greater conductivity (for example, copper), non-magnetic characteristics, or corrosion resistance (for example, zinc), even though they are often more expensive than ferrous metals. In the iron and steel sectors, several non-ferrous materials are also employed. Bauxite, for instance, is used as a flux in blast furnaces, whereas wolframite, pyrolusite, and chromite are utilised to create ferrous alloys.

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Answer:

Explanation:

After various studies and experiments conducted on Pluto's moon, Charon it has been determined that it gets to minus 459.67 degrees Fahrenheit which would be equivalent to minus 273.15 degrees Celsius. This is the coldest temperature that scientists have registered for Charon. This temperature is nearing absolute zero and puts it colder than Pluto itself since Pluto's temperature is believed to get to minus 400 degrees Fahrenheit which is equivalent to minus 240 degrees Celcius.

The combination of the compounds can be found in option C

A compound is formed through a chemical reaction or a combination of elements. In a chemical reaction, two or more elements combine or react with each other to form a compound.

The elements involved in the reaction undergo a rearrangement of their atoms and bonding to form new chemical bonds, resulting in the formation of a compound with different properties from the original elements. This is clear from the images that have been shown in the question.

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The statement that accurately describes the appearance of the solution when it reaches equilibrium is: no changes will be apparent, as the forward and reverse reactions continue.

A chemical reaction is said to be at equilibrium when the rate of the forward reaction equals that of the reverse reaction.

In the case of a chemical reaction at equilibrium, formation of products equals the formation of reactants.

According to this question, if two substances are dissolved in water and start to react, no changes will be apparent, as the forward and reverse reactions continue.

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Answer:

1. The rate of the forward and backward reactions are equal.

2. No changes will be apparent, as the forward and reverse reactions continue.

3. The reactions that happen in baking are not reversible reactions.

4. The reaction mixture is not complete as reactants are still being added to the system.

5. in step 5 when the person returns to a healthy level of blood sugar and remains there

Explanation:

made a 100% on the assessment

Answer:

its a.

Explanation:

The density of 55.3 lbs/ft³ is 0.884 g/mL.

To convert density from pounds per cubic foot (lbs/ft³) to grams per milliliter (g/mL), we can use the following conversion factors:

1 pound = 453.59237 grams

1 foot = 30.48 centimeters (cm)

1 inch = 2.54 centimeters (cm)

1 milliliter (mL) = 1 cubic centimeter (cm³)

First, we convert pounds to grams:

55.3 lbs = 55.3 lbs * 453.59237 g/lb = 25050.364 grams

Next, we convert cubic feet to milliliters:

1 ft³ = (30.48 cm)³ = 28316.8466 cm³

1 cm³ = 1 mL

Finally, we calculate the density in g/mL:

Density = (25050.364 g) / (28316.8466 mL) ≈ 0.884 g/mL

Therefore, the density of 55.3 lbs/ft³ is approximately 0.884 g/mL.

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Answer:

Explanation:

At constant pressure, the heat of reaction is equal to the enthalpy change of the system. Most chemical reactions occur at constant pressure, so enthalpy is more often used to measure heats of reaction than internal energy

For a chemical reaction, the heat of reaction, also known as enthalpy change (∆H), is equal to the difference between the total energy of the products and the total energy of the reactants.

Enthalpy change represents the amount of heat energy exchanged or released during the course of a reaction. The heat of reaction can be positive (endothermic), indicating that the reaction absorbs heat from the surroundings, or negative (exothermic), indicating that the reaction releases heat to the surroundings.

The magnitude of the heat of reaction is a measure of the amount of heat energy involved in the reaction.

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The iupac system, the e in the corresponding alkane is replaced with -amine

The International Union of Pure and Applied Chemistry's (IUPAC) suggested nomenclature for organic chemistry is a way to name chemical substances that are classified as organics. The article appears in the Nomenclature of Organic Chemistry.

IUPAC nomenclature is significant because it establishes a uniform system for naming chemical substances.

The IUPAC nomenclature system was developed with the goal of creating a global consensus on compound names to improve communication. The system's aim is to associate each name with a distinct and clear structure, giving each structure a name that is both unique and unambiguous.

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Answer:

V2O5 is the empirical formula of vanadium oxide

Explanation:

The molecular mass of Vanadium is  50.949 g/mol

Number of moles of vanadium = 0.3456 g/50.949 g/mol = 0.00696 moles

The molecular mass of Oxygen is 16.0 g/mol

Number of moles of Oxygen = (0.6330 – 0.354) g/16 g/mol = 0.0174 moles

Emperical formula  

V (0.00696 moles/0.00696 moles) O (0.0174 moles /0.00696 moles)

V 1 O2.5

Multiply by two get a whole number  

V2 O5

answer:

a)1.274 g b) 0.013 mole

Explanation:

a) Mass of 1 mol of CuSo4. 5H20=

\(63 + 32 + (16 \times 4) + (7 \times 1) + (16 \times 5)\)

=246g

no. moles of CuSo4. 5H2O=

\( \frac{mass}{mass \: of \: 1mole} \)

so moles

=

\( \frac{3.14}{246} \)

0.013 mole

in the equation

1 mole of sulphuric acid reacts to form 1 mole of CuSo4.5H2O

in other words

0.013 mole of sulphuric acid reacts to form 0.013 mole of CuSo4.5H2O

so mass of 1 mole (Mr) H2So4=

\((2 \times 1) + 32 + (16 \times 4)\)

98g

mass of sulphuric acid= mole × mass of 1 mole

so mass= 0.013 × 98

1.274 g

b) In the equation

1 mole of sulphuric acid reacts to form 1 mole of copper(ll) oxide

in other words

0.013 mole of sulphuric acid reacts to form 0.013 mole of copper (ll) oxide

so 0.013 mole of copper(ll) oxide is reacted

Hope it helped and pls mark brainliest

Each solution has a concentration of 7.625 x 103 m, 3.8125 x 104 m, and 1.90625 x 105 m, respectively.

Dilution is the process of lowering a sample's concentration by incorporating more solvent, according to its definition. The following is the dilution formula.

C₁V₁ = C₂V₂

where C1 is the sample's initial concentration.

V1 is the initial sample volume.

After dilution, the ultimate concentration is C2.

After dilution, the ultimate total volume is V2.

Calculate the concentration of the diluted solution by entering the numbers into the formula.

first common answer

C₁V₁ = C₂V₂

0. 1525 m(5.00 ml) = C₂(100.0 ml) (100.0 ml)

C₂ = 7.625 x 10⁻³ m

Second common solution

C₁V₁ = C₂V₂

7.625 x 10⁻³ m(5.00 ml) = C₂ (100.0 ml)

C₂ = 3.8125 x 10⁻⁴ m

Third accepted option

C₁V₁ = C₂V₂

3.8125 x 10⁻⁴ m(5.00 ml) = C₂(100.0 ml) (100.0 ml)

C₂ = 1.90625 x 10⁻⁵ m

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Note: in the International System of Units, The kilogram or kilogramme (symbol: kg) is the base unit of mass.

2nd Note:

1 gram = 0.001 Kilograms

72 kilograms converted to grams is 72,000 grams.

333 grams is 0.333 kilograms.

0.23976 is the pizza percentage.

Rounded: 0.24

Therefore, your answer is 0.24

You would need to walk at a brisk pace for about 1 hour and 40 minutes to burn off the calories obtained from eating the cheeseburger.

25 g of protein and 31 g of carbohydrates release 4 cal/g, which equals 240 calories. 25 g of fat release 9 cal/g, which equals 225 calories. So, the total calories in the cheeseburger are 465.

Now, to burn off 465 calories at a rate of 280 cal/h, we need to divide 465 by 280, which equals 1.66 hours or approximately 1 hour and 40 minutes.

In summary, to burn off the calories obtained from a cheeseburger containing 25 g of protein, 25 g of fat, and 31 g of carbohydrates, you would need to walk at a brisk pace for about 1 hour and 40 minutes.

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Aluminum and iron oxide (Fe₂O₃) react together to produce aluminum oxide, 20 g of Fe₂O3 will produce 14 g of Fe.

Oxide is a category of chemical compound that has one or more oxygen atoms and also another element in its composition.

2Al +  Fe₂O₃ -> Al₂O₃ + 2Fe

Molar mass of Fe₂O₃ is: (2 x 56) + (3 x 16) = 160 g/mol

moles of Fe2O3 = 20 g / 160 g/mol = 0.125 mol

As the reaction is carried out with an excess of Al, we can assume that all of the Fe₂O₃ is consumed and that 2 moles of Fe are produced for every mole of Fe₂O₃

moles of Fe = 2 x moles of Fe₂O₃ = 0.25 mol

Molar mass of Fe is : 56 g/mol

So the mass of Fe produced is:

mass of Fe = moles of Fe x molar mass of Fe

mass of Fe = 0.25 mol x 56 g/mol = 14 g

Therefore, 20 g of Fe₂O₃ will produce 14 g of Fe.

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The conductivity of metalloids can be compared to the conductivity of metals and nonmetals because metalloids conduct electricity better than nonmetals, but not as well as metals (Option C).

The expression metalloids is a term used to denote chemical elements that have features resembling metals such as an acceptable electrical conductivity, but they are not metals (e.g. boron, germanium, antimony, arsenic, polonium, etc).

Therefore, with this data, we can see that metalloids are similar to metals in electrical conductivity but they are not metals because they do not fit all properties of metals.

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The atomic number of an element represents the number of protons in the nucleus. In this case, the atomic number is 6. Therefore, there are 6 protons in the nucleus of this element. The correct answer is B. 6.

The atomic number of an element represents the number of protons in the nucleus. In this case, the atomic number is 6, which means there are 6 protons in the nucleus. The atomic mass is the sum of the number of protons and neutrons in the nucleus. Since the atomic mass is 12.01 and the atomic number is 6, we can subtract 6 from 12.01 to get the number of neutrons. This gives us a neutron count of approximately 6.01.

Therefore, The answer is B. 6 protons are in the nucleus of this element.

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