can none of the transition metals conduct electricity?​

Answer:

Both

Explanation:

if you pull a mountain a part that would be great consequences and if a volcano breaks there will be fire .

After considering the given the data we conclude that the  ionization energy generally increases from left to right across a period. Therefore, the element with the highest ionization energy in period 3 would be located on the right side of the periodic table.

We can also see from the search results that helium has the highest ionization energy of all the elements, while sodium has the lowest ionization energy in period 3. Therefore, we can conclude that the element with the highest ionization energy in period 3 is located to the right of sodium.
Based on the periodic table, we can see that the elements in period 3 are:
Sodium (Na)
Magnesium (Mg)
Aluminum (Al)
Silicon (Si)
Phosphorus (P)
Sulfur (S)
Chlorine (Cl)
Argon (Ar)
Therefore, the element with the highest ionization energy in period 3 is most likely Argon (Ar), which is located on the far right side of the period.
In summary, the element with the highest ionization energy in period 3 is most likely Argon (Ar).
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Option D, NaCl(aq) + AgNO3(aq) → NaNO3(aq) + AgCl(s), is the balanced chemical equation that represents a single-replacement reaction.

What is Replacement Reaction?

In chemistry, a replacement reaction is a type of chemical reaction where one element replaces another in a compound. The general formula for a replacement reaction is:

A + BX → AX + B

where A and B are elements, and X is an anion that can combine with A and B. In this reaction, A replaces B in the compound BX, forming a new compound AX and releasing the element B as a free element. Replacement reactions can be of two types: single replacement reactions and double replacement reactions, depending on whether one or two elements are replaced in the reaction.

In this reaction, sodium (Na) replaces silver (Ag) in the compound AgNO3 to form NaNO3, and silver is released as a free element in the form of AgCl.

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Answer:

both the identity and the properties of a substance change.

Answer:

its A both the identity and the properties of a substance change

Explanation:

got it right on edge

Answer:

Explanation:

Decomposition reaction, also known as analysis or dissociation, is a type of chemical reaction in which a compound breaks down into simpler substances or elements. In this reaction, a single reactant undergoes a chemical change and produces two or more products.

The decomposition reaction can be represented by the general equation:

AB → A + B

Where AB is the reactant, and A and B are the products. The reactant AB is usually a compound, and it breaks down into its constituent elements or simpler compounds.

There are different types of decomposition reactions, including:

Thermal decomposition: It occurs when a compound is heated, resulting in its decomposition into simpler substances. For example, the thermal decomposition of calcium carbonate (CaCO3) produces calcium oxide (CaO) and carbon dioxide (CO2):

CaCO3 → CaO + CO2

Electrolytic decomposition: It takes place when an electric current is passed through an electrolyte, causing it to break down into its component ions. For instance, the electrolysis of water (H2O) leads to the decomposition into hydrogen gas (H2) and oxygen gas (O2):

2H2O → 2H2 + O2

Photochemical decomposition: It occurs when a compound undergoes decomposition due to exposure to light energy. Chlorine gas (Cl2) can decompose into chlorine atoms (Cl) under the influence of light:

Cl2 → 2Cl

These are just a few examples of decomposition reactions. They are important in various chemical processes and are used in industries, laboratory experiments, and natural phenomena. By understanding and controlling decomposition reactions, scientists can gain insights into the behavior of different compounds and develop practical applications in fields such as chemistry, materials science, and environmental science.

Answer:

Explanation:

reaction in which a compound breaks down into simpler substances or elements

Answer:

342. 15 g/mol is the mass

Al Aluminium 26.98g 2 atoms per mole = 15.7716%

S Sulfur 32.06g 3 atoms per mole = 28.1151%

O Oxygen 15.99g 12 atoms per mole = 56.1133%

Explanation:

Hope this helps

Answer:

15,7%

Explanation:

What is the percentage of Aluminum in Aluminum Sulfate?

Aluminum Sulfate

is Al2 (SO4)3

its molar mass is

(2 X 27) + (3 X 96) = 54 + 288 = 344

THE % Al IS (54 /344) X 100 = 15,7%

Answer:

increase,increase,decrease

Explanation:

Answer:

false

Explanation:

when two substance look the same, but the smell is different then that means the chemical compounds of the substance are different so if their chemical composition is different then the substance is different.

hence proved

The number of reactants is less than the number of products in a decomposition reaction.

This is the type of chemical reaction which involves a reactant being broken down into two or more products.

This means the number of product is always greater than the reactant which is why option C was chosen.

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The ionic equation for the dissolution of lead phosphate, Pb₃(PO₄)₂, is:

Pb₃(PO₄)₂(s) → 3Pb²⁺(aq) + 2PO₄³⁻(aq)

The dissolution of lead phosphate, Pb₃(PO₄)₂, in water involves the separation of the solid compound into its constituent ions. The ionic equation represents the dissociation of the solid compound into its respective ions in the aqueous solution.

The formula Pb₃(PO₄)₂ indicates that there are three lead ions, Pb²⁺, and two phosphate ions, PO₄³⁻, in the compound. When it dissolves in water, the solid compound dissociates completely into these ions.

The balanced ionic equation for the dissolution is:

Pb₃(PO₄)₂(s) → 3Pb²⁺(aq) + 2PO₄³⁻(aq)

In this equation, Pb₃(PO₄)₂(s) represents the solid lead phosphate, and (aq) denotes the ions present in the aqueous solution. The equation shows that each solid unit of Pb₃(PO₄)₂ dissociates into three Pb²⁺ ions and two PO₄³⁻ ions.

It's important to note that the ions in the equation should be properly balanced according to the stoichiometry of the compound. The ionic equation provides a concise representation of the dissolution process by focusing on the ions involved and their stoichiometric ratios.

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Answer:

2.5l

Explanation:

They higher the temprature the higher the volume

Answer:

The answer is A

Explanation:

Answer:

D)All of the above

Answer:

A mixture of salt and sugar can be separated by the process of filtration.

Answer:

a double helix structure

Explanation:

a two-stranded molecule that appears twisted, giving it a unique shape referred to most commonly as the double helix structure

The basic chemical formula for all sugar monomers can be described as (CH₂O)n, where "n" represents the number of carbon atoms in the sugar molecule.

Glucose is the most prevalent natural monomer among sugars. Starch, cellulose, and glycogen combine to create polymers as a result of their linking. Many species rely on glucose as a critical source of energy.

This formula indicates that sugars are composed of carbon (C), hydrogen (H), and oxygen (O) atoms in a ratio of 1 ratio 2 ratio 1. The "n" value varies depending on the specific sugar monomer. For example monosaccharide, glucose, a common sugar monomer, has a chemical formula of C₆H₁₂O₆, where "n" is 6.

Therefore, the correct description of the basic chemical formula for all sugar monomers is (CH₂O)n.

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When an organism's cells only have one set of chromosomes, the organism is said to be haploid. All organisms that reproduce sexually are diploid (having two sets of chromosomes, one from each parent). Only the egg and sperm cells in humans are haploid.

The term "diploid" describes an organism's cells having two full sets of chromosomes, with one chromosome from each parent present in each pair. Since humans are diploid, the majority of their cells have 23 pairs of chromosomes.

Distinguish between haploid and diploid.

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Answer:

0.085 kg

Explanation:

1 g=0.001 kg  OR 1 kg=1000 g

 so \(\frac{85}{1000}\)=0.085 kg

DNA damage can affect normal cell that affects function and impact the rates of apoptosis.

DNA  on the other hand damage to affects genetic material can consequence in impaired cellular function, cell loss, or the change of healthy cells to cancers. Factors such as light, temperature, and pollution could enduringly alter our DNA and gene expression, especially as climate change continues. Point mutations that occur in DNA order encoding proteins are either silent, missense or nonsense.

Extremely inaccurate DNA replication can lead to a rapid aggregation of mutations that disrupts cellular procedure and effects needed for viability and extinguish clonal populations of cells within some generations

So we can conclude that Each DNA strand is calm of nucleotides units made up of a sugar (deoxyribose).

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Answer: Tetracycline is an antibiotic containing multiple functional groups, including an amine group, an alcohol group, a carboxylic acid group, and a ketone group.

Tetracycline is an antibiotic containing multiple functional groups. The functional groups present in this molecule are an amine group, an alcohol group, a carboxylic acid group, and a ketone group.

The amine group is composed of nitrogen and hydrogen atoms, and is often found in organic compounds. It is also known as an amino group.

The alcohol group is composed of an oxygen and hydrogen atom bonded to a hydrocarbon group, usually a single bond. It is also known as a hydroxyl group.

The carboxylic acid group is composed of a carbonyl and hydroxyl groups, and is often found in organic compounds. It is also known as an carboxyl group.

The ketone group is composed of two oxygen atoms and two carbon atoms, and is often found in organic compounds. It is also known as a keto group.

In conclusion, tetracycline is an antibiotic containing multiple functional groups, including an amine group, an alcohol group, a carboxylic acid group, and a ketone group.

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Answer:

\(T \approx 5s\)

Explanation:

From the question we are told that:

Power \(P=686600w Js^{-1}\)

Work \(W=3430000 J\)

Generally the equation for Time t is mathematically given by

\(T=\frac{Work}{Power}\)

\(T=\frac{W}{P}\)

Therefore

\(T=\frac{3430000 }{686600}\)

\(T=4.996\)

\(T \approx 5 s\)

Answer:

2,760 grams NaCl

Explanation:

To find grams of NaCl, you need to (1) convert moles of Na to moles of NaCl (via mole-to-mole ratio from reaction) and (2) convert moles of NaCl to grams (via molar mass from periodic table). The final answer should have 3 significant figures based on the given measurement.

2 Na + Cl₂ --> 2 NaCl

Molar Mass (NaCl) = 22.99 g/mol + 35.45 g/mol

Molar Mass (NaCl) = 58.44 g/mol

47.2 moles Na           2 moles NaCl              58.44 grams

----------------------  x  ---------------------------  x  -------------------------  =
                                   2 moles Na                   1 mole NaCl

= 2,758.368 grams NaCl

= 2,760 grams NaCl

It seems that you are referring to a substance with high concentrations of sodium (Na) and potassium (K) that is beneficial for the house. This substance could be a type of water softener.

Water softeners contain high concentrations of Na and K ions, which help to reduce the hardness of water by exchanging hard water minerals like calcium and magnesium with sodium or potassium ions. Using a water softener can benefit your house by preventing scale build-up in pipes and appliances, and improving the efficiency of soap and detergent use.By eliminating these minerals, water softeners can help to prevent scale buildup in pipes, fixtures, and appliances, which can make them more efficient and last longer.

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The amount of energy in kJ/mol that was converted to heat when a fluorescent mineral absorbs black light from a mercury lamp and emits visible light with a wavelength of 520 nm can be calculated using Planck's constant, speed of light, and Avogadro's number.

A fluorescent mineral absorbs energy with a wavelength of 320 nm.

The formula to calculate the energy in kJ/mol can be given asE = hc/λ, where,E = energy in Jc = speed of light in m/sλ = wavelength in m.

The above formula can be rearranged as, E = hc/λ = (6.626 × 10-34 J s)(3.00 × 108 m/s)/(320 × 10-9 m)=1.85 × 10-19 J.

Now we can convert the value of energy in joules to kJ/mol using Avogadro's number as, 1 J = 1/1000 kJ 1 mol = 6.022 × 1023 molecules.

Then, the energy in kJ/mol that was converted to heat can be calculated as:E/(6.022 × 1023) × 10-3 kJ = (1.85 × 10-19 J)/(6.022 × 1023) × 10-3 kJ = 3.08 × 10-26 kJ/mol.

Hence, the amount of energy in kJ/mol that was converted to heat is 3.08 × 10-26 kJ/mol.

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Reaction A is chemical, while Reaction B is nuclear, is the proper response. Electrons are involved in chemical processes that take place outside of the atomic nucleus and release modest quantities of energy.

On the other hand, nuclear processes, which take place inside the atomic nucleus and include neutrons, release comparatively high levels of energy. The terms "weak nuclear" and "strong nuclear," which describe the forces that hold protons and neutrons together in the nucleus, are inapplicable in this situation.

These forces are not present in chemical and nuclear reactions, which are fundamentally distinct processes. Nuclear reactions entail the conversion of one element into another, whereas chemical reactions require the building and breaking of chemical bonds.

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Answer: 3.85%

Explanation: To calculate the volume percentage of ethanol in the mixture, we need to determine the total volume of the mixture first.

Total volume = volume of ethanol + volume of water

Total volume = 10 ml + 250 ml

Total volume = 260 ml

Now, we can calculate the volume percentage of ethanol in the mixture using the following formula:

Volume percentage of ethanol = (volume of ethanol ÷ total volume) x 100%

Plugging in the values, we get:

Volume percentage of ethanol = (10 ml ÷ 260 ml) x 100%

Volume percentage of ethanol = 3.85%

Therefore, the volume percentage of ethanol in the mixture is 3.85%.

8.05 g of CuSO₄ is the highest mass of crystals.

a) CuO(solid) + H₂SO₄(aqueous) → CuSO₄(aqueous) + H₂O(liquid)

Molecular weight,

CuO = 79 g

Molar weight of CuSO₄ = 159 g,

79 g of CuO reacted with H₂SO₄ 159 g to form CuSO₄.

∴ 4 g of CuO

= 159/79 × 4

= 8.05 g of CuSO₄

b) Percentage yield and Theoretical yield :

The Theoretical yield:

CuSO₄ of 159.6 g → CuSO₄.5H₂O of 249.5 g

8.05 g = 249.5 × 8.05 ÷ 159.6 = 12.58 g

And the percentage yield = Weight of the product ÷ Theoretical yield × 100

= 11.25 ÷ 12.58 × 100

= 89.42%

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Answer:

Charles's law, or the law of volumes, was found in 1787 by Jacques Charles.

Answer:

\(27.72 g\)

Explanation:

The relationship between the number of particles and the number of mole of a substance is given by the equation  N = n L ; where  N is the number of particles, n  is the number of mole, and  L  is Avogadro's constant.

To calculate the amount of benzophenone needed, we need to use the formula:

Amount (g) = Moles × Molar mass
First, we need to convert the given amount of benzophenone from millimoles (mmol) to moles. Since 1 mmol = 0.001 moles, 2 mmol would be 0.002 moles.
The molar mass of benzophenone is 182.22 g/mol.
Using the formula, we can now calculate the amount of benzophenone needed:
Amount (g) = 0.002 moles × 182.22 g/mol
Amount (g) = 0.36444 grams
Therefore, approximately 0.36444 grams of benzophenone is needed to make a solution of 2 mmol benzophenone in 1 ml of diethyl ether.

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The correct answer is option D. Having a large number of people working together ensures that new insights in solving a problem will occur.

Engineers and scientists have knowledge in different fields. Science is a study of nature and the scientists are the people who study science, the study of nature or how the natural world works.

Scientists study and gain knowledge about the nature and the engineers apply it to make use of the knowledge about science.

It can be said they are interdependent. As working closely, the data is exchanged or shared between scientists and engineers. Both scientists and engineers have their own ideas and thoughts.

Scientists can help engineers to develop analytical and research skill which can help engineers to write better code to make best use of science.

Thus, people working together on different aspects, they can have new insights. This helps to look at the situation from different angles and can solve the problems easily and in a better way.

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