suppose mol of electrons must be transported from one side of an electrochemical cell to another in minutes. calculate the size of electric current that must flow.

This procedure of filtering barium sulfate out of water doesn't remove all of the barium ions from the water.

The balanced equation is

BaCl₂(aq) + K₂SO₄(aq) → BaSO₄(s) + 2KCl(aq)

The reaction consumes 1 mole of barium chloride. The reaction produces 1 mole of barium sulfate and 2 moles of potassium chloride. This type of reaction is an example of a double displacement reaction where mutual exchange of cation and anion takes place.

Since, the aqueous ions are too small to filter they are carried away with the filtrate solution, leaving behind the precipitate. So, Barium ions will still be present in the solution of water.

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The new pressure when the volume has been increased : 152.26 mmHg

Given

V₁ = 25 ml

P₁ = 525 Maggie ? (maybe you mean mmHg)

V₂ = 86.2 ml

Required

The new pressure

Solution

Boyle's Law  

At a constant temperature, the gas volume is inversely proportional to the pressure applied  

\(\rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}\)

\(\tt P_2=\dfrac{P_1.V_1}{V_2}\\\\P_2=\dfrac{525~mmHg\times 25~ml}{86.2~ml}\\\\P_2=152.26~mmHg\)

Renal failure is the new diagnosis that the provider would prompt to discontinue a PRN order for magnesium hydroxide.

Renal failure is a special condition where the person is unable to manage the function of the kidney organ.

The magnesium hydroxide may cause renal failure because this salt must be eliminated by the kidney and therefore it may trigger health complications.

In conclusion, renal failure is the new diagnosis that the provider would prompt to discontinue a PRN order for magnesium hydroxide.

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Answer:

9.7 atm.

Explanation:

The following data were obtained from the question:

Initial pressure (P1) = 1 atm

Initial volume (V1) = 0.725 L

Final volume (V2) = 0.075 L

Final pressure (P2) =?

The final pressure can be obtained by using the Boyle's law equation since the temperature is constant. This is illustrated below:

P1V1 = P2V2

1 x 0.725 = P2 x 0.075

Divide both side by 0.075

P2 = 0.725 / 0.075

P2 = 9.7 atm.

Therefore, the new pressure is 9.7 atm.

Answer:

C on edge

Explanation:

im the best rust player so ofc i know

The smallest packet of electromagnetic energy that can be absorbed or emitted is photon.

Radiation that travels in waves and has both electric and magnetic fields. It is derived from both natural and artificial sources. The power of electromagnetic energy can range from low to high.

Hence photon is the smallest packet of electromagnetic energy.

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The entropy of a gas is directly proportional to the volume it occupies and inversely proportional to its temperature. Therefore, under the given conditions, the highest entropy (S) of one mole of Ne would occur at 28°C and 30 L.

This is because at higher temperatures, the gas molecules have higher kinetic energy and move more rapidly, increasing their disorder or entropy. On the other hand, at lower volumes, the gas molecules are more confined and have less space to move around, leading to a decrease in entropy.

Therefore, the conditions of 28°C and 30 L would result in the highest entropy for one mole of Ne.

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Answer:

D

Explanation:

Ionic bonds form when a metal and a nonmetal exchange electrons.

A) atoms with relatively similar electronegativities share electrons between them and form covalent bonds

B) the force that holds atoms together in a metallic substance is known as a metallic bond. such a solid consists of closely packed atoms....in short, the valence electrons in metals, unlike those of covalent bonds, are nonlocalized and capable of wandering relatively freely throughout the entire molecule

C) bonds formed between two nonmetals are mainly covalent bonds

.The characteristic that can be written in A only is that ionic bonds are "formed between an atom that tends to lose electrons and an atom that tends to gain electrons" option D.

Ionic or electrovalent bonds are bonds formed between oppositely charged ions which are formed by a gain or loss of electrons and these ions are held together by strong electrostatic forces of attraction.

Therefore, characteristic that can be written in A only is that ionic bonds are "formed between an atom that tends to lose electrons and an atom that tends to gain electrons" option D.

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The way in which soil aeration affects porosity of soil is described below.

Soil porosity is the term used to describe the amount of open space or pore space that can be found between particles of soil.

Soil porosity also determines the amount of oxygen that can be found in pore spaces. In addition to water, plants must have oxygen to grow and thrive.

Aeration is the process by which air is circulated through or mixed with a substance such as soil or a liquid.

One of the primary reasons that plants need pore space is because oxygen gets stored in the pores Therefore, soil porosity is influenced by soil aeration.

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Answer:

B

Explanation:its the best answer

The most diverse offspring is produced when bees bringing pollen from the flower of one plant to the flower of another plant where, the new flower made will show a characteristic of both plants?

Pollination is the process of transferring pollen grains from the anther of the flower to the female stigma portion. This is a mechanism to create offsprings of the plants.

Pollination can be occurred through various agents such as insects, wind, water etc. Some plants contains both male and female flower within it and those are self pollinating.

Bees and butterflies are the main pollinating agents for plants. When they bring the pollen grains from one plant to another plant's flower the resulting offspring will have diverse properties which are mix of each plants.

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Answer:

  0.0135 moles

Explanation:

You want to know the number of moles of gas in a 0.325 L container at 1.00 atm and 293 K.

The ideal gas law is ...

  PV = nRT

Solving for n, the number of moles can be found as ...

  n = PV/(RT)

  n = (101.325 kPa)(0.325 L)/(8.3145 L·kPa/(K·mol)·293 K) ≈ 0.0135 mol

The container can hold 0.0135 moles of gas.

__

Additional comment

1.00 atm = 101.325 kPa

The net ionic equation for the reaction between AgClO3 and KOH is:

Ag+ (aq) + OH- (aq) -> AgOH (s)

The net ionic equation for the reaction that occurs when mixing aqueous solutions of AgClO3 (silver chlorate) and KOH (potassium hydroxide) can be determined by first writing the balanced chemical equation and then omitting spectator ions.

The balanced chemical equation for the reaction is:

AgClO3 (aq) + KOH (aq) -> AgOH (s) + KClO3 (aq)

To obtain the net ionic equation, we need to identify the spectator ions, which are the ions that appear unchanged on both sides of the equation. In this case, the potassium ion (K+) and the chlorate ion (ClO3-) are spectator ions.

The net ionic equation is obtained by removing the spectator ions:

Ag+ (aq) + OH- (aq) -> AgOH (s)

Therefore, the net ionic equation for the reaction between AgClO3 and KOH is:

Ag+ (aq) + OH- (aq) -> AgOH (s)

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Answer:

A physical property would be The metal, while a possible chemical property would be a chance of gallium. (Gallium is liquid on hot days)

Explanation:

The standard reaction free energy for the chemical reaction 4\(PCl_{3}\)(g)→\(P_{4}\)(g)+6\(Cl_{2}\)(g) is 1151 kJ/mol.

The standard free energy of a reaction (ΔG°) is a thermodynamic quantity that represents the change in Gibbs free energy for a chemical reaction under standard conditions.

To calculate the standard reaction free energy of the chemical reaction 4\(PCl_{3}\)(g)→\(P_{4}\)(g)+6\(Cl_{2}\)(g), we need to use the thermodynamic information provided in the ALEKS Data tab.

First, we need to find the standard free energy change (∆G°) of formation for each compound involved in the reaction.

∆G\(^{o}_{f}\) for \(PCl_{3}\)(g) = -287.7 kJ/mol
∆G\(^{o}_{f}\)for \(P_{4}\)(g) = 0 kJ/mol
∆G\(^{o}_{f}\)for \(Cl_{2}\)(g) = 0 kJ/mol

Next, we use the formula:
∆G\(^{o}_{rxn}\) = Σ∆G\(^{o}_{f}\)(products) - Σ∆G\(^{o}_{f}\)(reactants)

Plugging in the values:
∆G\(^{o}_{rxn}\)= [(0 kJ/mol) + (6 x 0 kJ/mol)] - [(4 x -287.7 kJ/mol)]
∆G\(^{o}_{rxn}\) = 1151 kJ/mol

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The statements which is true about the reactants from the given simulation above is: It involves the breaking of chemical bonds.

The correct answer choice is option c

For a chemical reaction to occur, the bond between the reacting substances breaks either by covalent or electrovalent bonding in order to form new substance.

So therefore, reactants usually break chemical bonds duringchemical reaction.

Complete question:

A chemical reaction causes the chemical compositions of substances to change. Reactants are substances that enter into a reaction, and products are substances produced by the reaction

Which of the following are the reactants for this simulation? Select all that apply

a. A chemical reaction results to formation of new bonds

b. A chemical reaction involves the formation of new substance.

c. It involves the breaking of chemical bonds

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Diselenium hexabromide has the chemical formula Si2Br6.

The nomenclature of covalent compounds utilizing prefixes served as the basis for the name of disilicon hexabromide (di- represents two atoms and hexa- represents 6 atoms). Ionic compounds, on the other hand, use the IUPAC nomenclature system based on the cation's valency.

A compound's bonding will be covalent if it is created from two non-metals. In most cases, ionic compounds are created when a metal reacts with a nonmetal (or a polyatomic ion). The reaction between two nonmetals produces covalent compounds.

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Acetylene can be converted into aldehyde using the following steps: acetylene is hydroborated with borane, vinyl borane is converted to aldehyde, aldehyde is deprotonated, and aldolate is acidified.

Hydroboration of acetylene in Step 1: By hydroboration, acetylene (HCCH) and borane (BH3) can combine to produce vinyl borane (HB=CH2).

Step 2: Vinyl Borane is Oxidized to Aldehyde

Using a basic hydrogen peroxide (H2O2) solution to treat vinyl borane will cause it to oxidize into an aldehyde.

Step 3: Aldehyde deprotonation

Sodium hydroxide, a moderate base, can deprotonate the aldehyde product (NaOH).

Aldolate's acidification in Step 4: The required aldehyde product can then be produced by acidifying the aldolate with diluted hydrochloric acid (HCl).

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Answer:

two

Explanation:

When two distinct elements are chemically combined, chemical bonds form between their atoms. the result is called a chemical compound

Answer:

A compound is a substance that contains two or more elements chemically combined in a fixed proportion.

Answer:

(o) Al + NaOH + H2O -NaAlO2 + H2.

When aluminum oxide Al 2 O 3 reacts with sodium hydroxide solution, it forms sodium aluminate and water H 2 O . This reaction takes place at a temperature of 900 - 1100 ° C

A 1200 mL IV drip is labelled to contain 12% of a laxative. The number of mL of the IV drip that should be administered if a patient is to receive 21 mL of the laxative is 175 mL.

To find the number of mL of the IV drip that should be administered to provide 21 mL of the laxative, we can set up a proportion using the concentration of the laxative.

Let x represent the number of mL of the IV drip to be administered.

The concentration of the laxative is given as 12% or 0.12, meaning that in 100 mL of the IV drip, there are 12 mL of the laxative.

Using the proportion:

(12 mL of laxative) / (100 mL of IV drip) = (21 mL of laxative) / (x mL of IV drip)

Cross-multiplying, we get:

12 mL * x mL of IV drip = 100 mL * 21 mL of laxative

12x = 210 IV drip0

Dividing both sides by 12:

x = 2100 / 12

x = 175

Therefore, 175 mL of the IV drip should be administered to provide 21 mL of the laxative.

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Answer:

Forensic drug chemists analyze samples of unknown materials including powders, liquids and stains to determine the chemical identity or characteristics of the compounds that make up the sample. samples submitted as evidence in a drug-related case can contain one compound or a mixture of many compounds.

The correct answer is (c) Mn4+. Mn4+ has the same number of electrons as scandium, which is 21.

This is because Mn4+ has lost four electrons from its neutral state, which has 25 electrons, while scandium has 21 electrons in its neutral state. When two species have the same number of electrons, they are said to be isoelectronic. Therefore, Mn4+ is isoelectronic with scandium. This is a long answer as it explains the concept of isoelectronic species and how the number of electrons in Mn4+ and scandium is the same.

The ion that is isoelectronic with scandium is (c) Mn4+. Isoelectronic species have the same number of electrons. Scandium (Sc) has an atomic number of 21, and when it forms a +3 ion (Sc3+), it has 18 electrons. Manganese (Mn) has an atomic number of 25, and when it forms a +4 ion (Mn4+), it also has 18 electrons. Thus, Mn4+ is isoelectronic with Sc3+.

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Answer:

Which has the longest wavelength?

✔ microwaves

x infrared

x visible

x X-rays

Which has the highest frequency?

✔ X-rays

x infrared

x microwaves

x visible

Explanation:

I apologize if this was a late answer or if this doesn't answer your original question, but hope this helps! :)

Answer:

Microwaves then X rays

Explanation:

Many everyday substances, such as oxygen, gold and aluminium, are element . but Other substances such as water and sugar are not

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The product formed is meso-2,3-butanediol (magnesium bromide), which is the bis-Grignard reagent for meso-2,3-dibromo butane. It consists of two magnesium bromide moieties connected by a butanediol chain.

The reaction of meso-2,3-dibromo butane with magnesium (Mg) turnings in either under the same conditions would also form a Grignard reagent. However, the product would be different due to the different arrangement of bromine atoms in meso-2,3-dibromo butane compared to 1,4-dibromo butane.

In meso-2,3-dibromo butane, the bromine atoms are located on the same carbon atom, resulting in a meso configuration.

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The pH of the resulting solution when 250 mL of 2.1 M HBr is mixed with 200 mL of 2.5 M KOH is 12.7.

This can be calculated by first finding the moles of each of the reactants, and then using the ICE table to determine the concentration of ions in the solution. The equation for the ICE table is:

The concentration of H3O+ can then be determined by taking the square root of the KW, and the concentration of the OH- can be calculated by dividing the KW by the H3O+ concentration. The pH can then be calculated by taking the negative log of the H3O+ concentration.

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Answer:

height(h)=10 m

acceleration due to gravity (g)=10 m/s^2

mass (m)=?

potential energy=67

or,mgh= 67

or,m×10×10=67

or,m=67/100

or,m=0.67 kg

Therefore,m= 670 grams

Answer:

ionic bonding or covalent

Explanation: