An ion of iron has an 26 protons 30 neutrons and 23 elctrons,what are it’s atomic number atomic mass and net charge

The false statement is (2) Group 3A metals are more reactive than Group 2A metals which are more reactive than Group 1A metals.

This statement is incorrect as the reactivity of the groups decreases as we move from Group 1A to Group 3A. Group 1A metals are the most reactive of the three groups, followed by Group 2A metals and then Group 3A metals. This trend can be explained by the increasing ionization energy and electronegativity from left to right across the periodic table.

Group 1A and 2A metals are indeed strong reducing agents. They readily give up their valence electrons to form cations and have a strong tendency to form ionic compounds with nonmetals. The oxides of Group 1A and 2A metals are basic in nature, as they react with water to form metal hydroxides. However, BeO is an exception to this trend as it is amphoteric in nature and can react with both acids and bases.

Hydroxides of most Group 2A metals are indeed less soluble than hydroxides of Group 1A metals due to the differences in the ionic/covalent character of the hydroxides. The hydroxides of Group 1A metals have more ionic character, while the hydroxides of Group 2A metals have more covalent character, which makes them less soluble in water.

Learn more about Group 1A metals here:

https://brainly.com/question/27751926

#SPJ11

Answer:

Washing your hands with lemon juice does not have any beneficial effects.

Explanation:

washing with lemon juice does not protect against any major diseases.

Answer:

k(+)

NH4(+)

Al3(+)

Explanation:

cations are those elements who donate their electrons and we put a positive charge on it and receivers get negative charge and they are called anion.....Thank you so,much Please let me know how you feel and is helps you or not....

To prepare lead solid from a solution of lead (II) nitrate, you could submerge a metal such as zinc or iron into the solution. This would cause a displacement reaction, where the zinc or iron would replace the lead in the lead (II) nitrate and form a solid lead product.

The half-reaction for the oxidation of zinc is:

Zn(s) → Zn2+(aq) + 2e-

And the half-reaction for the reduction of lead (II) ions is:

Pb2+(aq) + 2e- → Pb(s)

When these two half-reactions are combined, the overall balanced equation for the reaction is:

Zn(s) + Pb(NO3)2(aq) → Pb(s) + Zn(NO3)2(aq)

This reaction results in solid lead forming on the submerged metal surface, and the nitrate ions remaining in solution with the newly formed zinc (II) nitrate.
To prepare solid lead from a lead (II) nitrate solution, you can submerge a more reactive metal, such as zinc or iron, into the solution. This will cause a displacement reaction, where the more reactive metal will displace lead ions and form solid lead.

The half-reactions involved are as follows:

For zinc:
1. Oxidation (Zn to Zn²⁺): Zn(s) → Zn²⁺(aq) + 2e⁻
2. Reduction (Pb²⁺ to Pb): Pb²⁺(aq) + 2e⁻ → Pb(s)

For iron:
1. Oxidation (Fe to Fe²⁺): Fe(s) → Fe²⁺(aq) + 2e⁻
2. Reduction (Pb²⁺ to Pb): Pb²⁺(aq) + 2e⁻ → Pb(s)

In both cases, solid lead is formed as a result of the reduction half-reaction.

Learn more about solid here:

https://brainly.com/question/17061172

#SPJ11

Measure the appropriate mass of solute Cupric sulfate(s) and place it into a small beaker. Dissolve the solute in the beaker with as little distilled water as possible. Carefully transfer the dissolved solute into a volumetric flask.

One method that is frequently used to prepare copper sulphate is crystallisation. An electrolytic technique is used to create the chemical. The electrolyte solution contains sulfuric acid, and the two electrodes are composed of copper.

The impure sample is dissolved in a suitable solvent, heated in a water bath, and then let to stand in order to recrystallize the impure material into pure copper sulphate.

To know more about solute visit:-

https://brainly.com/question/8851236

#SPJ1

The answer is B) holidays. Breaks in the coating of a pipe are called holidays. These are small areas where the protective coating has not properly adhered to the pipe's surface, leaving it exposed and potentially vulnerable to corrosion or damage.

The ensure the integrity and longevity of the pipe, it is essential to identify and repair any holidays promptly. Here is a brief step-by-step explanation of the process Inspect the pipe's coating for any visible breaks or irregularities. Use a holiday detector to identify any holidays in the coating. This device sends an electric current through the coating and alerts you when it detects a break in the circuit, indicating a holiday. Mark the location of any identified holidays for repair. Clean the area around the holiday to remove any dirt or debris and ensure proper adhesion of the repair material. Apply a patch or repair material to the holiday, following the manufacturer's recommendations for the specific coating and application method. Allow the repair material to cure according to the manufacturer's instructions. Re-inspect the repaired area with the holiday detector to ensure the repair has fully covered and sealed the holiday. By following these steps, you can effectively repair holidays in the coating of a pipe and maintain the pipe's structural integrity.

learn more about corrosion here.

https://brainly.com/question/15542315

#SPJ11

The process that converts straight-chain alkanes into branched hydrocarbons is called: B. cracking.

The process that converts straight-chain alkanes into branched hydrocarbons is called option B: cracking. Cracking is a chemical process widely used in the petroleum industry to break down larger hydrocarbon molecules into smaller ones. It involves the thermal decomposition of hydrocarbons under high temperatures and pressures, often in the presence of a catalyst.

During cracking, long-chain alkanes are subjected to heat and pressure, causing the carbon-carbon bonds to break. This results in the formation of shorter hydrocarbon chains, including branched hydrocarbons. The process can occur in various forms, such as thermal cracking, catalytic cracking, or hydrocracking, depending on the specific conditions and desired products.

By converting straight-chain alkanes into branched hydrocarbons, cracking enhances the volatility, stability, and reactivity of the resulting hydrocarbon products. It is an essential process in the production of gasoline, diesel fuel, and other valuable hydrocarbon derivatives, as branched hydrocarbons often exhibit improved combustion characteristics and higher octane ratings.

Overall, cracking plays a vital role in the petroleum refining industry, enabling the transformation of long-chain alkanes into a more diverse range of hydrocarbon products with desired properties and applications.

To know more about alkanes refer here:

https://brainly.com/question/24270289

#SPJ11

The number of protons, neutrons, and electrons that iron (Fe) have if it has a +4 charge are 26, 29 and 22 respectively.

Atomic number of an element is the number of protons in the atom of that element. The number of protons of a neutral atom i.e. charge 0 is equal to the number of electrons.

Iron is a metallic chemical element having atomic number 26 and symbol Fe. Since the atomic number is 26, the number of protons is 26.

If the charge of the iron is +4, this means that the number of protons will be 26 while the number of electrons will be 22. The number of protons will be 55 - 26 = 29.

Learn more about proton number at: https://brainly.com/question/28992636

#SPJ1

(a)  it would take 23.1 kJ of heat energy to raise the temperature of a 1000.0 g copper pot by 60.0°C.

(b) it would take 26.9 kJ  of heat energy to raise the temperature of a 1000.0 g iron pot by 60.0°C.

The specific heat capacity of copper is 0.385 J/g·°C.

To calculate the amount of heat energy required to raise a 1000.0 g copper pot by 60.0°C, we can use the formula:

Q = m × c × ΔT

where;

Plugging in the values, we get:

Q = 1000.0 g × 0.385 J/g·°C × 60.0°C

Q = 23,100 J or 23.1 kJ

The specific heat capacity of iron is 0.449 J/g·°C.

Using the same formula as before, we can calculate the amount of heat energy required to raise a 1000.0 g iron pot by 60.0°C:

Q = 1000.0 g × 0.449 J/g·°C × 60.0°C

Q = 26,940 J or 26.9 kJ

Learn more about heat capacity here: https://brainly.com/question/16559442

#SPJ1

Answer:

the mass of an object depends on inertia greater is the inertia greater will be the mass or vice versa

Explanation:

hope it help ^_^

Mass is the most basic property of matter and it is one of the fundamental quantities. Mass is defined as the amount of matter present in a body. The SI unit of mass is the kilogram (kg). The formula of mass can be written as:

Mass = Density × Volume

The mass of a body is constant; it doesn’t change at any time. Only in certain extreme cases when a huge amount of energy is given or taken from a body, the mass may be impacted. For example, in a nuclear reaction, a tiny amount of matter is converted into a huge amount of energy, this reduces the mass of the substance.

There are various units for calculating mass, like, kilograms, grams, lbs, pounds, etc., but the SI unit of mass is "kilograms" or kg. Every unit of mass can be converted to other units by using a proper conversion formula without affecting the meaning and essence of the quantity to be measured.

HENCE,MASS OF AN OBJECT DEPENDS ON:

For more such examples follow this link:

https://brainly.in/question/22612207

                                                                               ··                               ··  

The balanced equation was found to be Na· + ·Cl : ---------> Na + (: cl : )-

                                                                               ..                               ..          

Define ionic bond dot diagram ?

Group 8 elements, generally known as noble gases, are noted for their inertness. They hardly never react with other elements, such as water, oxygen, or metals. This is due to the fact that they all have a complete outer shell of electrons. This is the most stable electron configuration possible for an atom.

Other elements, on the other hand, do not have this stable electron configuration. Instead, in order to obtain that ideal arrangement, they must acquire, lose, or share electrons. Ionic bonding is one method for doing this.

the answer for the ionic bond dot diagram for the Nacl was found to be.

           ··                              ··

Na· + ·Cl : ---------> Na + (: cl : )-

           ..                              ..

To learn more about ionic bond follow the given link: https://brainly.com/question/13526463

#SPJ1

The products Rosa recorded in the last row of the table should be: 2LiCl + 3O₂.

The type of reaction which Rosa did is a decomposition reaction which involves one compound that yields to more than one (or usually two) product. To determine the product, we can deduce that it has to contain elements of Li, Cl and O₂. So, from the options, the answer is 2LiCl + 3O₂.

A decomposition reaction can be described as a chemical reaction in which one reactant breaks down into two or more products. Generally, decomposition reactions need energy input.

Learn more about decomposition reaction at: https://brainly.com/question/16987748

#SPJ4

Answer:

Option B. K = 1.3×10⁴, product favored

Explanation:

Data obtained from the question include:

O2(g) + 2SO2(g) <==> 2SO3(g)

Concentration of O2, [O2] = 0.024 M

Concentration of SO2, [SO2] = 0.015 M

Concentration of SO3, [SO3] = 0.26 M

Equilibrium constant, K =..?

The equilibrium constant, K is simply defined as the ratio of the concentration of products raised to their coefficient to the concentration of the reactants raised to their coefficient.

The equilibrium constant for the above reaction can be written as

K = [SO3]² / [O2] [SO2]²

Inputing the values of [SO3], [O2] and [SO2] the equilibrium constant, K is:

K = [SO3]² / [O2] [SO2]²

K = 0.26² / 0.024 × 0.015²

K = 1.3×10⁴

Therefore, the equilibrium constant K is 1.3×10⁴.

Since the value of the equilibrium constant, K is large and positive, therefore, the reaction favours the product.

Relationship between resistance and current in a circuit is current is inversely proportional to the resistance

The relationship between current and voltage, resistance is expressed by ohm's law and this states that the current flowing in a circuit is directly proportional to the applied voltage and inversely proportional to the resistance of the circuit and provided the temprature remain constant and hence the relationship between current and resistance could be written as I = VR for constant value of voltage and the current is inversely proportional to the resistance

Know more about current

https://brainly.com/question/10709669

#SPJ9

The answers include the following:

Tendons are connective fibrous tissues that attaches muscle to bone and they have a bright white color together with a strong and smooth appearance which can be observed when studied.

Tendons are very important as they help in ensuring that the movement of parts of the body are easy due to its holding some structures such as ligaments in place. It is present in all bone joints due to its numerous functions in the musculoskeletal system of organisms.

The tendon is very flexible and binds the muscles in the body to other structures which is why it is referred to as a connective tissue and the above answers are the most appropriate.

Read more about Tendon here https://brainly.com/question/3205735

#SPJ1

Answer:15.9994 g/mol

Explanation:

The characteristics and the type of molecular bond they describe:

1. Bonds found in Halite (between Na⁺ and Cl⁻): Ionic bond

2. Bonds found between Si and O in the Si-O tetrahedron: Covalent bond

3. Bonds inside the water molecule (between the H and O): Covalent bond

4. Bonds that exist between two water molecules: Hydrogen bond

5. Strongest bond type: Covalent bond

6. Weakest bond type: Van der Waals bond

7. Bonds that are used by water to dissolve salt: Ionic bond

The ionic bond is a type of molecular bond found in halite (between Na⁺ and Cl⁻). The Si-O tetrahedron is held together by a covalent bond. The bond inside the water molecule (between the H and O) is also a covalent bond. The hydrogen bond is the type of bond that exists between two water molecules. The covalent bond is the strongest bond type, while the van der Waals bond is the weakest bond type. Water uses the ionic bond to dissolve the salt.

Learn more about bonds: https://brainly.com/question/32306693

#SPJ11

The first one appear to be a pan with some liquid heating up.

The beginning state is liquid, the phase change type is a vaporization and its ending state is gas.

The second one seems to be a ice cube melting.

Its beginning phase is solid, the phase change type is fusion, and its ending state is liquid.

The third one is water, or other liquid, making clouds.

The beginning state is liquid, the phase change type is a vaporization and its ending state is gas.

The fourth illustration seems to be an aluminium can. There aren't really a phase change happening, but when we open the aluminium can containing gaseous drink, there are molecules of gas diluted into the liquid and some of it encouter each other to make a bubble of the gas and is released. It is not an actually phase change, it is the reverse process of diluting gas into liquid. Initially it is diluted gas, it gets released and in the end it is in gas phase.

Answer:

lithium because it has an atomic number of three(you could have just googled which element has the atomic number 3)

68.9g mass of the water would be boiled away

What is  specific heat capacity?

The amount of heat needed to raise a substance's temperature by one degree Celsius per gram is known as its specific heat. Typically, calories or joules per gram per degree Celsius are used as the units of specific heat. For instance, water has a specific heat of 1 calorie (or 4.186 joules) per gram per degree Celsius.

The amount of energy necessary to raise the temperature of 1 kilogram of tissue by 1 K (=1°C) is referred to as the specific heat capacity of tissue.

Q= mcdeltT

  = 350g x 418J x (100-20)c

  =  117,040J

Q total = Q1+Q2

             =275000J - 117040 J

             =  157960 J (left in beaker)

Q = mdelt Hv

m = Q2/0h

    = 157960 J / 2260J/g

    = 69.8g

To learn more about specific heat capacity use link below:

https://brainly.com/question/28825214

#SPJ1

Beyond-use date after opening for multiple-dose vials: 28 days. multiple-dose vials, which contain multiple doses of medication, have a beyond-use date of 28 days after opening.

This means that once the vial is punctured and exposed to air, it should be discarded after 28 days, even if there is remaining medication. This is to ensure patient safety and prevent contamination. Over time, microorganisms can potentially enter the vial, leading to the growth of bacteria or fungi. The 28-day limit helps minimize the risk of using compromised medication and maintains the integrity and effectiveness of the drug. It is important to follow these guidelines to ensure the safety and efficacy of medications used from multiple-dose vials.

Learn more about multiple-dose here:

https://brainly.com/question/30585774

#SPJ11

When red blood cells are placed in Solution A, which contains 150 mM NaCl, no significant changes occur because the concentration of sodium chloride is similar to that of the cells' internal environment. The isotonic nature of Solution A ensures that there is no net movement of water across the cell membrane, resulting in the cells maintaining their normal shape and size.

However, when comparing the tonicity of Solutions B, C, D, and E to Solution A and each other, differences arise. Tonicity refers to the osmotic pressure exerted by a solution on a cell and is influenced by the concentration of solutes within the solution. Solutions B and E both contain additional solutes along with NaCl.

Solution B, consisting of 100 mM glucose and 100 mM NaCl, has a higher tonicity compared to Solution A. Glucose cannot freely cross the cell membrane, creating an osmotic gradient that draws water into the red blood cells, causing them to swell.

Solution C contains 100 mM Drug X, a small non-polar molecule, along with 150 mM NaCl. Since Drug X is non-polar, it can freely cross the cell membrane. The presence of Drug X does not significantly affect the tonicity compared to Solution A, as it does not create an osmotic gradient.

In contrast, Solution D, which contains 150 mM MgCl2, has a higher tonicity than Solution A. MgCl2 dissociates into Mg2+ and Cl- ions, both of which cannot cross the cell membrane easily. The higher concentration of impermeable ions creates an osmotic gradient, leading to water loss from the red blood cells and causing them to shrink.

Lastly, Solution E consisting of 300 mM fructose has a higher tonicity compared to Solution A. Fructose cannot freely cross the cell membrane, resulting in an osmotic gradient that draws water into the red blood cells, causing them to swell.

In summary, placing red blood cells in Solution A does not produce significant changes in the cells. However, when comparing the tonicity of Solutions B, C, D, and E to Solution A and each other, variations in osmotic pressure occur due to the presence of different solutes.

Learn more about red blood cells

brainly.com/question/12265786

#SPJ11

The valence states provided are general representations and may vary depending on specific conditions and coordination environments.

a. Uvarovite: The mineral formula for uvarovite is Ca3Cr2(SiO4)3. In this formula, the valence state of calcium (Ca) is +2, the valence state of chromium (Cr) is +3, and the valence state of silicon (Si) is +4. Oxygen (O) is usually assigned a valence state of -2.

b. Azurite: The mineral formula for azurite is Cu3(CO3)2(OH)2. In this formula, the valence state of copper (Cu) is +2, carbonate (CO3) has a valence state of -2, and hydroxide (OH) has a valence state of -1.

c. Cuprite: The mineral formula for cuprite is Cu2O. In this formula, the valence state of copper (Cu) is +1, and oxygen (O) is usually assigned a valence state of -2.

d. Gypsum: The mineral formula for gypsum is CaSO4·2H2O. In this formula, the valence state of calcium (Ca) is +2, sulfur (S) has a valence state of +6, and oxygen (O) is usually assigned a valence state of -2. The water molecules (H2O) do not have a net charge.

e. Galena: The mineral formula for galena is PbS. In this formula, the valence state of lead (Pb) is +2, and sulfur (S) has a valence state of -2.

It's important to note that the valence states provided are general representations and may vary depending on specific conditions and coordination environments.

Learn more about valence from below link

https://brainly.com/question/371590

#SPJ11

Answer:

The timber companies removing all the trees from entire hillside when they are harvesting logs is a practice that could cause the following when it is time to plant in spring:

1. It could affect the quality of plant needed nutrients in the soil and beneficial microorganism population in the soil which could impact negatively the planting season.

2. Trees serves as protection of soil nutrients against wind erosions, so the soil nutrients would be affected.

The farmers tilling the soil means preparing the soil for a farming season as the following effect:

1. Helps control weed for the planting season.

2. This practice could further encourage soil erosion if not done well.

3. Tilling the soil could make leftover plants from the felling of trees mix well with the soil and also add nutrients to the soil when they decay.

Answer:

I think it would be 0 since cations and anions must always combine in such a way so that their charges cancel.

I uh- I'm a bit confused- W h a t

Phosphate and carbonate ions may show positive results in the hydroxide test because they may precipitate out of the solution when a strong base is added.


The hydroxide test is a test for the presence of ions containing OH-. When a strong base such as NaOH or KOH is added to the solution, it reacts with metal cations and forms precipitates. Phosphate and carbonate ions may show positive results in the hydroxide test because they may precipitate out of the solution when a strong base is added.

When NaOH is added to a solution containing phosphate ions, the solution will turn cloudy due to the formation of a precipitate of calcium phosphate. Similarly, when NaOH is added to a solution containing carbonate ions, it forms a precipitate of calcium carbonate. Both these precipitates are white and hence indicate a positive result.

Therefore, if the hydroxide test produces a white precipitate, it is likely that the solution contains either phosphate or carbonate ions.

Learn more about hydroxide test here:

https://brainly.com/question/8905830

#SPJ11

While visiting his uncle's farm, Derek learned that horses and donkeys are two different species. Based on this information, Derek can infer that horses and donkeys are members of different populations.


Since horses and donkeys are different species, they belong to different populations. A population refers to a group of individuals of the same species that live in the same area and can interbreed. While horses and donkeys can mate, their offspring, known as mules, are usually infertile.

This means that mules cannot produce offspring of their own, which indicates that horses and donkeys are not members of the same population. In contrast, if they were members of the same population, they would be able to produce fertile offspring. Therefore, Derek can infer that horses and donkeys are members of different populations.

Learn more about mules here:

https://brainly.com/question/15852289

#SPJ11

The biggest difference between elements and molecules is the composition of their atoms. In summary, while elements consist of one type of atom, molecules are composed of multiple types of atoms that are chemically bonded together.

Elements are substances made up of only one type of atom. Atoms are the smallest units of matter that retain the chemical properties of an element. Each element has a unique set of properties and is represented by a chemical symbol, such as H for hydrogen or O for oxygen.

Molecules, on the other hand, consist of two or more atoms bonded together. These atoms can be of the same element or different elements. When atoms of different elements combine, they form compounds. For example, a water molecule (H2O) consists of two hydrogen atoms bonded to one oxygen atom.

To know more about molecules visit:

brainly.com/question/29591631
#SPJ11