How many sulfide ions surrounds the each lead ion?

How many sulfide ions surrounds the each lead ion?
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How many lead ions would surround each sulfide ions?

Description : How many lead ions would surround each sulfide ions?

Last Answer : 18

Human urine is usually acidic because (a) potassium and sodium exchange generates acidity (b) hydrogen ions are actively secreted into the filtrate (c) the sodium transporter exchanges one hydrogen ion for each sodium ion, in peritubular capillaries (d) excreted plasma proteins are acidic.

Description : Human urine is usually acidic because (a) potassium and sodium exchange generates acidity (b) hydrogen ions are actively secreted into the filtrate (c) the sodium transporter exchanges one hydrogen ion for each sodium ion, in peritubular capillaries (d) excreted plasma proteins are acidic.

Last Answer : (b) hydrogen ions are actively secreted into the filtrate

What surrounds each air sac in the lungs ?

Description : What surrounds each air sac in the lungs ?

Last Answer : Each air sac in the lungs is surrounded by capillaries.

The connective tissue layer that surrounds each individual fibre in the nerve is (a) epineurium (b) perineurium (c) perineural septum (d) endoneurium

Description : The connective tissue layer that surrounds each individual fibre in the nerve is (a) epineurium (b) perineurium (c) perineural septum (d) endoneurium

Last Answer : Ans:(d)

Vascular bundles in monocotyledons are considered closed because (a) there are no vessels with perforations (b) xylem is surrounded all around by phloem (c) a bundle sheath surrounds each bundle (d) cambium is absent.

Description : Vascular bundles in monocotyledons are considered closed because (a) there are no vessels with perforations (b) xylem is surrounded all around by phloem (c) a bundle sheath surrounds each bundle (d) cambium is absent.

Last Answer : (d) cambium is absent.

What concentration of `Ag^(+)` ions will be in equilibrium with a saturated solution containing a precipitate of `Ag_(2)CrO_(4) and CrO_(4)`-ion conce

Description : What concentration of `Ag^(+)` ions will be in equilibrium with a saturated solution containing a precipitate of `Ag_(2)CrO_(4) and CrO_(4)`-ion conce

Last Answer : What concentration of `Ag^(+)` ions will be in equilibrium with a saturated solution containing a precipitate of ... D. `5.9xx10^(-6)` moles per litre

The ease of adsorption of the hydrated alkali metal ions on ion-exchange resins follows the order:

Description : The ease of adsorption of the hydrated alkali metal ions on ion-exchange resins follows the order:

Last Answer : The ease of adsorption of the hydrated alkali metal ions on ion-exchange resins follows the order: A. `K^(+)lt Na + ... (+)lt K^(+)lt Na^(+)lt Li^(+)`

To balance the bicarbonate ion loss in RBC the chloride ions move into RBC, it is known as :-

Description : To balance the bicarbonate ion loss in RBC the chloride ions move into RBC, it is known as :-

Last Answer : To balance the bicarbonate ion loss in RBC the chloride ions move into RBC, it is known as :- A. Chloride ... C. Bohr effect D. Both (1) and (2)

The number of moles of oxalate ions oxidised by one mole of `MnO_(4)^(-)` ion in acidic medium is :

Description : The number of moles of oxalate ions oxidised by one mole of `MnO_(4)^(-)` ion in acidic medium is :

Last Answer : The number of moles of oxalate ions oxidised by one mole of `MnO_(4)^(-)` ion in acidic medium is : A. `5//2` B. `2//5` C. `3//5` D. `5//3`

During the extraction of Ag and using a KCN solution and Zn, cyanide ions and Zn react with metal ion as respectively

Description : During the extraction of Ag and using a KCN solution and Zn, cyanide ions and Zn react with metal ion as respectively

Last Answer : During the extraction of Ag and using a KCN solution and Zn, cyanide ions and Zn react with metal ... acid C. A reducing agent D. A complexing agent

`XeO_(3)` forms xenate ion in alkaline medium. `XeO_(3) +NaOH rarr Na[HXeO_(4)]` But the xenate ions slowly disproportionate in alkaline solution as `

Description : `XeO_(3)` forms xenate ion in alkaline medium. `XeO_(3) +NaOH rarr Na[HXeO_(4)]` But the xenate ions slowly disproportionate in alkaline solution as `

Last Answer : `XeO_(3)` forms xenate ion in alkaline medium. `XeO_(3) +NaOH rarr Na[HXeO_(4)]` But the xenate ions slowly ... `Na_(4)XeO_(6)` D. `Na_(4)XeO_(4)`

A gas of hydrogen - like ion is perpendicular in such a way that ions are only in the ground state and the first excite state. A monochromatic light o

Description : A gas of hydrogen - like ion is perpendicular in such a way that ions are only in the ground state and the first excite state. A monochromatic light o

Last Answer : A gas of hydrogen - like ion is perpendicular in such a way that ions are only in the ... Calculate the values of the maximum and minimum wavelengths.

What will most likely happen is a toxin causes the hydrogen ion pump to stop moving h plus ions outside the mitochondrial membranes of the bird's cells?

Description : What will most likely happen is a toxin causes the hydrogen ion pump to stop moving h plus ions outside the mitochondrial membranes of the bird's cells?

Last Answer : Need answer

Chloride shift is (A) H ions leaving the RBC in exchange of Cl- (B) Cl– leaving the RBC in exchange of bicarbonate (C) Bicarbonate ion returns to plasma and exchanged with chloride which shifts into the cell (D) Carbonic acid to the plasma

Description : Chloride shift is (A) H ions leaving the RBC in exchange of Cl- (B) Cl– leaving the RBC in exchange of bicarbonate (C) Bicarbonate ion returns to plasma and exchanged with chloride which shifts into the cell (D) Carbonic acid to the plasma

Last Answer : Answer : C

There are two properties of the cell necessary to maintain nonequilibrium cellular composition; the first is selectivity and the second is energy conversion. Which of the following statement(s) is/are true concerning energy converting transport? a. The site of energy conversion and transport in the plasma membrane involves the phospholipid component b. The Na+-K++-ATPase derives energy from hydrolysis of extracellular ATP c. In some systems, energy inherent in the transmembrane ion gradient can be used to drive transport of a second species d. Examples of species transported via secondary active transport include hydrogen ions, calcium, amino acids and glucose

Description : There are two properties of the cell necessary to maintain nonequilibrium cellular composition; the first is selectivity and the second is energy conversion. Which of the following statement(s ... transported via secondary active transport include hydrogen ions, calcium, amino acids and glucose

Last Answer : Answer: c, d The selectivity of the plasma membrane, although impressive, cannot account for the nonequilibrium composition of living cells. A cell can be maintained in a nonequilibrium state only by ... to drive the transport of a second species such as protons, calcium, amino acids, or glucose

Which of the following statement(s) is/are true concerning cellular ion channels? a. Ion channels are transmembrane proteins that form pores that can conduct ions across the plasma membrane b. Ion channels are formed by membrane-spanning peptides that are arranged so that polar moieties line a central core c. Ion channel proteins undergo conformational changes between open states and closed states d. Ion channels can be blocked

Description : Which of the following statement(s) is/are true concerning cellular ion channels? a. Ion channels are transmembrane proteins that form pores that can conduct ions across the plasma membrane b. ... undergo conformational changes between open states and closed states d. Ion channels can be blocked

Last Answer : Answer: a, b, c, d Ion channels are transmembrane proteins that form pores that can conduct ions across the plasma membrane. Ion channels are formed by membrane-spanning peptides that are arranged ... be blocked by ions or organic compounds that enter the channel, bind there, and occlude the pore

During the nerve impulse transmission, following ion or ions may play significant roles D A. Sodium B. Potassium C. Chloride D. All of these

Description : During the nerve impulse transmission, following ion or ions may play significant roles D A. Sodium B. Potassium C. Chloride D. All of these

Last Answer : All of these

During the nerve impulse transmission, following ion or ions may play significant roles D A. Sodium B. Potassium C. Chloride D. All of these

Description : During the nerve impulse transmission, following ion or ions may play significant roles D A. Sodium B. Potassium C. Chloride D. All of these

Last Answer : All of these

The following are true about rods in darkness: a. there is tonic release of neurotransmitters b. the sodium ion channels are open c. the potassium ion channels are shut d. there is a net influx of sodium ions

Description : The following are true about rods in darkness: a. there is tonic release of neurotransmitters b. the sodium ion channels are open c. the potassium ion channels are shut d. there is a net influx of sodium ions

Last Answer : there is a net influx of sodium ions

Which of the following is true when HCL is passed through water. (i) It does not ionize in the solution as it is a covalent compound (ii) It ionizes in the solution (iii) It gives both hydrogen and hydroxyl ions in the solution (iv) It forms hydronium ion in the solution due to the combination of hydrogen ion with water molecule. (a) (i) only (b) (iii) only (c) (ii) and (iv) only (d) (iii) and (iv)

Description : Which of the following is true when HCL is passed through water. (i) It does not ionize in the solution as it is a covalent compound (ii) It ionizes in the solution (iii) It gives both hydrogen and hydroxyl ions in the solution ... ) (i) only (b) (iii) only (c) (ii) and (iv) only (d) (iii) and (iv)

Last Answer : (c) (ii) and (iv) only

Homolytic fission of covalent bond between carbon atoms will produce : (a) Two carbonium ions (b) Two molecules (c) Free radicals (d) Carbonium ion and carbanion

Description : Homolytic fission of covalent bond between carbon atoms will produce : (a) Two carbonium ions (b) Two molecules (c) Free radicals (d) Carbonium ion and carbanion

Last Answer : Free radicals

It is caused by hydroxide ions in the material ∙ A. visible light absorption ∙ B. infrared absorption ∙ C. ultraviolet absorption ∙ D. ion resonance absorption

Description : It is caused by hydroxide ions in the material ∙ A. visible light absorption ∙ B. infrared absorption ∙ C. ultraviolet absorption ∙ D. ion resonance absorption

Last Answer : D. ion resonance absorption

Which of the following terms denotes the polar molecules or negative ions clustered about a central positive ion? w) ligands x) isomers y) complex ions z) dipoles

Description : Which of the following terms denotes the polar molecules or negative ions clustered about a central positive ion? w) ligands x) isomers y) complex ions z) dipoles

Last Answer : ANSWER: W -- LIGAND

pH is defined as the negative logarithm of the hydrogen ion concentration. Comparing a pH 5 and a pH 8 solution, which of the following is true? w) There are 1,000 times more hydrogen ions in the pH 8 solution. x) There are 1,000 times more hydrogen ions in the pH 5 solution. y) There are 3 times more hydrogen ions in the pH 8 solution. z) Cannot tell the difference between these two solutions by pH, since the numbers are so close.

Description : pH is defined as the negative logarithm of the hydrogen ion concentration. Comparing a pH 5 and a pH 8 solution, which of the following is true? w) There are 1,000 times more hydrogen ions in ... . z) Cannot tell the difference between these two solutions by pH, since the numbers are so close.

Last Answer : ANSWER: X -- THERE ARE 1,000 TIMES MORE HYDROGEN IONS IN THE PH 5 SOLUTION

Which of the following molecules or ions is NOT formed when K metal reacts with liquid CH3OH? Is it: w) potassium ion x) hydrogen ion y) methoxy ion z) hydrogen molecule

Description : Which of the following molecules or ions is NOT formed when K metal reacts with liquid CH3OH? Is it: w) potassium ion x) hydrogen ion y) methoxy ion z) hydrogen molecule

Last Answer : ANSWER: X -- HYDROGEN ION

The most common complex ions have octahedral geometry. What is the coordination number of the central ion in an octahedral complex?

Description : The most common complex ions have octahedral geometry. What is the coordination number of the central ion in an octahedral complex?

Last Answer : ANSWER: SIX

Which of the following atoms or ions would be the smallest? w) sodium atom x) magnesium atom y) singly charged sodium ion z) doubly charged magnesium ion

Description : Which of the following atoms or ions would be the smallest? w) sodium atom x) magnesium atom y) singly charged sodium ion z) doubly charged magnesium ion

Last Answer : ANSWER: Z -- DOUBLY CHARGED MAGNESIUM ION

The theory of interionic attraction attributed to Debye and Hückel: w) was disproved by Arrhenius x) accounts quantitatively for the attraction between ions in dilute aqueous solutions y) does not account for kindered "ion-activity" z) accounts for intra-molecular polar bonds

Description : The theory of interionic attraction attributed to Debye and Hückel: w) was disproved by Arrhenius x) accounts quantitatively for the attraction between ions in dilute aqueous solutions y) does not account for kindered "ion-activity" z) accounts for intra-molecular polar bonds

Last Answer : ANSWER: X -- ACCOUNTS QUANTITATIVELY FOR THE ATTRACTION BETWEEN IONS IN DILUTE AQUEOUS SOLUTIONS

In a body-centered structure for cesium chloride how many nearest neighbor chloride ions surround a cesium ion?

Description : In a body-centered structure for cesium chloride how many nearest neighbor chloride ions surround a cesium ion?

Last Answer : ANSWER: 8

Does anyone here know what the lewis dot structure is for boron sulfide?

Description : Does anyone here know what the lewis dot structure is for boron sulfide?

Last Answer : Try looking up “Lewis Dot Structure” on a search engine and see if that “rings a bell”.

In what way is sulfide ore thickened ?

Description : In what way is sulfide ore thickened ?

Last Answer : Sulfide ore is thickened by floating oil foam.

Sulfide ores are common for the metals.

Description : Sulfide ores are common for the metals.

Last Answer : Sulfide ores are common for the metals. A. Ag,Cuand Pb B. Ag ,Cu and Sn C. Ag,Mg and Pb D. Al.Cu and Pb

What happens when sodium sulfide and cadmium nitrate are mixed?

Description : What happens when sodium sulfide and cadmium nitrate are mixed?

Last Answer : Need answer

How many atoms does one formula unit of gold sulfide have altogether?

Description : How many atoms does one formula unit of gold sulfide have altogether?

Last Answer : The chemical formula of gold sulfide is Au2S; three atoms are here.

What is cation charge of mercury II sulfide?

Description : What is cation charge of mercury II sulfide?

Last Answer : Need answer

Is it true that many metals are extracted from ores that contain sulfide minerals?

Description : Is it true that many metals are extracted from ores that contain sulfide minerals?

Last Answer : Feel Free to Answer

What differences in molecular structure might cause water to form hydrogen bonds while hydrogen sulfide does not form such bonds?

Description : What differences in molecular structure might cause water to form hydrogen bonds while hydrogen sulfide does not form such bonds?

Last Answer : What is the answer ?

In molecule of calcium sulfide calcium has two valence electron bonds and a sulfur atom has six valence electrons. How many lone pairs of electrons are present in the Lewis structure of calcium?

Description : In molecule of calcium sulfide calcium has two valence electron bonds and a sulfur atom has six valence electrons. How many lone pairs of electrons are present in the Lewis structure of calcium?

Last Answer : What is the answer ?

What is the formula for mercury (I) sulfide?

Description : What is the formula for mercury (I) sulfide?

Last Answer : Mercury Sulfide is a compound composed of Mercury and sulfur andthe molecular formula is HgS.

What is the formula for Vanadium (V) sulfide?

Description : What is the formula for Vanadium (V) sulfide?

Last Answer : vanadium2sulfide5

Which compound is responsible for the rotten egg smell? w) sulfuric acid x) putrescine y) hydrogen sulfide z) sulfur dioxide

Description : Which compound is responsible for the rotten egg smell? w) sulfuric acid x) putrescine y) hydrogen sulfide z) sulfur dioxide

Last Answer : ANSWER: Y -- HYDROGEN SULFIDE (NOTE: putrescine is a real compounz)

How many electron lone pairs are on the central atom in Hydrogen Sulfide?

Description : How many electron lone pairs are on the central atom in Hydrogen Sulfide?

Last Answer : ANSWER: TWO

Does anyone have a homemade recipe for removing algae from a car window/surrounds?

Description : Does anyone have a homemade recipe for removing algae from a car window/surrounds?

Last Answer : I don't know a homemade recipe, but I can tell you that Simple Green works wonders on gunk like that. We bought a boat that had been left outside for years and was so covered in dirt and mold that ... color white. Simple Green and a power washer, and lots of elbow grease, and we cleaned it up nice.

Which group of countries surrounds Belgium ? -SST 10th

Description : Which group of countries surrounds Belgium ? -SST 10th

Last Answer : Germany, France, The Netherlands & Luxembourg.

What surrounds a black hole? -Space

Description : What surrounds a black hole? -Space

Last Answer : There are two basic parts to a black hole: the singularity and the event horizon. The event horizon is the "point of no return" around the black hole. It is not a physical surface, but a sphere surrounding the black hole that marks where the escape velocity is equal to the speed of light

$ The biomembrane which surrounds a vacuole is called Tonoplast. ! Ribosomes have a plasma membrane.

Description : $ The biomembrane which surrounds a vacuole is called Tonoplast. ! Ribosomes have a plasma membrane.

Last Answer : $ The biomembrane which surrounds a vacuole is called Tonoplast. ! Ribosomes have a plasma membrane. A. If ... wrong D. If both As and R are wrong.

When in plant leaves, chloroplast containing bundle sheath cells surrounds vascular bundles in several layers that anatomy is known as

Description : When in plant leaves, chloroplast containing bundle sheath cells surrounds vascular bundles in several layers that anatomy is known as

Last Answer : When in plant leaves, chloroplast containing bundle sheath cells surrounds vascular bundles in several layers that anatomy is known as

Sheet or broad band of fibrous connective tissue that is deep to the skin and surrounds muscles and other organs of body are

Description : Sheet or broad band of fibrous connective tissue that is deep to the skin and surrounds muscles and other organs of body are

Last Answer : Sheet or broad band of fibrous connective tissue that is deep to the skin and surrounds muscles and ... Epimysium B. Pasicule C. Endomysium D. Fascia

What body of water surrounds Saint Lucia?

Description : What body of water surrounds Saint Lucia?

Last Answer : The Carribean sea and Atlantic Ocean

How does the traveler in the poem describe the statue and the area that surrounds it?

Description : How does the traveler in the poem describe the statue and the area that surrounds it?

Last Answer : What is the answer ?