can none of the transition metals conduct electricity?
Answers
Answer:
they all can!
Explanation:
The 38 elements in groups 3 through 12 of the periodic table are called "transition metals." As with all metals, the transition elements are both ductile and malleable, and conduct electricity and heat!
hope this helped!!!
Related Questions
Has high concentrations of Na and K and is better for the house. What is this?
Answers
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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How does the number of reactants in a decomposition reaction compare with
the number of products?
A. The number of reactants may be greater than or less than the
number of products.
B. The number of reactants is the same as the number of products.
C. The number of reactants is less than the number of products.
D. The number of reactants is greater than the number of products.
Answers
The number of reactants is less than the number of products in a decomposition reaction.
What is 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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Distinguish between haploid and diploid
Answers
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.
The number of chromosome sets found in the nucleus is the most obvious distinction between haploid and diploid cells. In contrast to diploid cells, which have two sets of chromosomes, haploid cells only have one set.The result of mitotic cell division is the formation of diploid cells. Following meiotic cell division, haploid cells are produced.Since there are two sets of chromosomes, there are two times as many chromosomes overall as there are in haploid cells. In comparison to diploid cells, there are half as many chromosomes because there is only one set present.To know more about haploid and diploid, click on the link below:
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What can form along faults when pushed together or pulled apart?
O Mountains
O Volcanoes
O Both
Answers
Answer:
Both
Explanation:
if you pull a mountain a part that would be great consequences and if a volcano breaks there will be fire .
In a kitchen, during preparation of food or tea, salt and sugar are
mixed. What methods for separation of this mixture would you
suggest to your mother?
Answers
Answer:
A mixture of salt and sugar can be separated by the process of filtration.
Why do scientific and engineering problems often require multidisciplinary efforts?
A) People with similar backgrounds and knowledge will be able to solve problems efficiently.
B) Few people are experts in multiple fields, so teams of people can work together to tackle a problem.
C) Working with people that have different skill sets discourages creative thoughts and ideas. D) Having a large number of people working together ensures that new insights in solving a problem will occur.
Answers
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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What are the effects at the DNA level?
Answers
DNA damage can affect normal cell that affects function and impact the rates of apoptosis.
What are the negative effects on the DNA?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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A gas held in a balloon at 5L has its temperature doubled. What will the new volume of the balloon be?
Answers
Answer:
2.5l
Explanation:
They higher the temprature the higher the volume
85g=kg?
Unit conversion.
Answers
Answer:
0.085 kg
Explanation:
1 g=0.001 kg OR 1 kg=1000 g
so \(\frac{85}{1000}\)=0.085 kg
Which statement best describe what happens during a chemical change
Answers
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
10 ml of ethanol is mixed with 250 ml of water calculate the volume percentage of ethanol
Answers
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%.
tetracycline is an antibiotic containing multiple functional groups. which functional groups are present in this molecule? (select all that apply).
Answers
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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calculate the amount of benzophenone neeeded to make a solution of 2 mmol benzophenone in 1 ml of diethyl ether.
Answers
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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(You do) If you have 47.2 mol of Na available, along with an excess of Cl₂, how many grams of NaCl can you produce?
Equation: 2Na+Cl2=2NaCl
Answers
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
What is Decomposition Reaction
Answers
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
A FLOURESCENT MINERAL ABSORBS BLACK LIGHT FROM A MERCURY LAMP. IT THEN ADMITS VISIBLE LIGHT WITHA WAVELENGTH OF 520 NM. IF THE MINERAL HAS ABSORBED ENERGY WITH A WAVELENGTH OF 320 NM HOW MUCH ENERGYIN (KJ MOLE)
WAS CONVERTEDTO HEAT
Answers
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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which element has the highest ionization energy in period 3
Answers
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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What is the percentage of Aluminum in Aluminum Sulfate?
Answers
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%
33
-Involves electrons
-Happens outside atomic
nucleus
-Releases relatively small
amounts of energy
-Involves neutrons
-Happens inside atomic
nucleus
-Releases relative large
amounts of energy
How should the student label each circle in this diagram?
reaction A: chemical; reaction B: nuclear
reaction A: nuclear: reaction B: chemical
reaction A: strong nuclear; reaction B: weak nuclear
reaction A: weak nuclear; reaction B: strong nuclear
Answers
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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The power of the crane was 68600w Caculate the time taken for the crane to do 3430000 J of work Give the unit
Answers
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
\(T=\frac{3430000 }{686600}\)
\(T=4.996\)
\(T \approx 5 s\)
Copper(II) sulfate crystals, CuSO4.5H₂O, can be made by heating copper(II) oxide with dilute
sulfuric acid and then crystallising the solution formed.
a
Calculate the maximum mass of crystals that could be made from 4.00 g of
copper(II)oxide using an excess of sulfuric acid.
CuO(s) + H₂SO4(aq) → CuSO4(aq) + H₂O(1)
CuSO4(aq) + 5H₂O(l) → CuSO4.5H₂O(s)
Answers
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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Which balanced chemical equation is a single-replacement reaction? (2 Points)
A. 2 K(s) + Br₂(/) → 2 KBr(s)
B. 2 HgO(s) → 2 Hg(/) + O₂(g)
C. Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s)
D. NaCl(aq) + AgNO3(aq) → NaNO3(aq) + AgCl(s)
Answers
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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What is the ionic equation for the dissolution of lead phosphate, Pb3(PO4)2? + Pb3(PO4)2(s) Pb2+ (aq) + PO4³- (aq) Pb3(PO4)2(s) Pb32+ (aq) + (PO4)22 (aq) Pb3(PO4)2(s)→→Pb3(PO4)2(aq) OPb3(PO4)2(s) +3Pb2+ (aq) + 2PO4³-(aq) Hy
Answers
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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Select the correct answer from each drop-down menu.
A balloon holds a certain volume of air. In what three ways can the volume of the balloon be increased?
- the number of air molecules in the balloon(increase or decrease)
- the temperature of the balloon(increase or decrease)
- the pressure on the balloon(increase or decrease)
Answers
Answer:
increase,increase,decrease
Explanation:
Describe the structure or shape of DNA
Answers
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
which of the following correctly describes the basic chemical formula for all sugar monomers?
Answers
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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How many moles are in 3.25 x 1025 molecules of H2O?
Answers
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.
Answer the following;
Pls helppp
Answers
Answer:
The answer is A
Explanation:
Answer:
D)All of the above
True or False: If two substances have all the same physical properties, except for the smell, they could still be the same substance.
Answers
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 volume of a given mass of an ideal gas at a constant pressure is
Answers
Answer:
Charles's law, or the law of volumes, was found in 1787 by Jacques Charles.