The hydrides of group 5A are NH3NH3, PH3PH3, AsH3AsH3, and SbH3SbH3. Arrange them from highest to lowest boiling point.

Q: Define valency by taking examples of silicon and sulphur?

A: The electrons, protons, and neutrons are the core of an atom. The electrons are the species that…

Q: For the following electrochemical cell, which of the following statements is true when the cell…

A: The cell given is,

Q: As you move down Group 5A(15), the melting points of the elements increase and then decrease.…

A: Solution- An atom is mainly composed of three sub-particles; electrons, protons and neutrons. These…

Q: Use Intermolecular Forces to explain why CF4 is a gas at room temperature but CCl 4 is a liquid

A: Intermolecular Forces that is acting here is London force .

Q: Define the term Hydrogen Halides?

A: The term hydrogen halides has to be explained.

Q: Write the balanced chemical equation for conversion of Al(s) to KAl(SO4)2·12H2O(s) in aqueous…

A: The balanced equation is the equation in which the number of atoms of each elements are equal at…

Q: Explain in detail why a catalyst is used to produce SO3.

A: Solution- SO3 is produced by the oxidation of SO2 .This was done during contact process.H usually a…

Q: Define the Ground-level ozone, which is the primary component of smog, forms when HC and NOx react…

A: The species ground level ozone will be the types of the secondary pollutant which will be produced…

Q: The melting and boiling points of alkaline metals are higher than alkali metals. Give reason.

A: Melting point is that temperature at which solid and liquid phase stay in equilibria and boiling…

Q: Explain why the concentration of dissolved oxygen in freshwater is an important indicator of the…

A: Dissolved Oxygen or D.O is a measure of the amount of O2 dissolved in water (relatively). It…

Q: what is the lewis structure of ICl4- and what is its geometry?

A:

Q: . Give the formula of the substance formed after the addition of water to sulfur dioxide.

A: The chemical formula of water is H2O and chemical formula of sulfur dioxide is SO2.

Q: Select the characteristics of silicon that make it less well adapted than carbon to be the central…

A: Silicon is an element found in Group 14 and Period 3 of the periodic table. It has an atomic number…

Q: what is the mass percent of water in ca(no3)2・4h2o?

A: The molar mass of Ca(NO3)2.4H2O is 236.146 g/mol and the molar mass of water is 18 g/mol. The molar…

Q: The average daily mass of O2 taken up by sewage discharged in the United States is 59 g per person.…

A: One person depletes 59 g of oxygen, the mass of oxygen depleted (m) by 1,200,000 people is…

Q: Which of the following compounds would you expect to have the lowest melting point? CaO H2O Na2O…

A: Ionic compounds with higher charges have higher melting point due to strong intermolecular forces…

Q: What type of bonding do metalloids generally do to form crystal structures? Covalent lonic O…

A: Covalent bonding is the main bonding to form the crystal structures of the metalloids. In this case…

Q: Give the molecular shape around the boron atom in BCl 3 and the nitrogen atom in NCl 3 and explain…

A: The molecular shape around the boron atom in BCl 3 and the nitrogen atom in NCl3 has to be given,

Q: Give

A: 2NH4​Cl + Ca(OH)2 ​→ CaCl2​ + 2H2​O+2NH3​ Ca3P2 + 6H2O → 3Ca(OH)2 + 2PH3   FeS + 2 HCl → FeCl2 + H2S…

Q: Give the hybridization and oxidation state for sulfur in SO2, in SO3, and in H2SO4.

A:

Q: Dissolved oxygen in water is essential for aquatic plants and animals but when the same water is fed…

A:

Q: Compare and Contrast the properties of Lithium Carbonate and Water, including Lewis structures,…

A: To find and compare different properties of Li2 and H2O.

Q: the noble gas Xenon acts as a general anesthetic.

A: Welcome to bartleby !  Introduction : We have to discuss noble gas xenon acts as a general…

Q: Draw the Lewis structures for the phosphorus halides PCl3  and PCl5 . Describe their VSEPR shape.

A: The Lewis structures of phosphorus halides PCl3 and PCl5 are given as follows:

Q: Describe the trend for second-period hydrides. Why is this trend observed?

A: Observing the given figure shows that period 2 hydrides has unusual trend in their boiling…

Q: Write equations showing the stepwise ionization of phosphorous acid.

A:

Q: Compounds of alkaline earth metals are more extensively hydrated than those of alkali metals. Give…

A: Alkali metals: They are group 1 metals that consists the elements lithium, sodium, potassium,…

Q: Calculate the lattice enthalpies, ΔU (also called ΔHL), of the following group 1 fluoride compounds…

A: According to the Born-Mayer equation, ∆U=-Na Z+Z-doe2A4πεo1-ddo where Z+, Z- are the charges present…

Q: Which is most acidic: NaCH3OO, CH3COOH, or CFH2COOH?

A:

Q: What is the mass percent of water in Ba(OH)2 octahydrate

A: We have to calculate the mass percent of water in barium hydroxide octahydrate. Introduction: We…

Q: Tooth decay (dental caries) is an unpleasant fact of life. Aging, diet, and improper dental hygiene…

A: Let's delve deeper into the pros and cons of tooth whiteners.Pros:Improved Aesthetic Appeal: Tooth…

Q: Illustrate the  Relationship among Boiling Points, Dipole Moments,and Polarizability of Some Binary…

A: To illustrate the relationship between the boiling points, dipole moments, and polarizability of…

Q: Predict the shape of SiF4,SF4 and XeF4 molecules. Explain why the shapes differ.

A: Shape of SiF4, SF4 and XeF4 = ?  Explain why shape is different.

Q: Which of the following statements is true about the ionic character of hydrides of Group 1 elements?…

A: H is smallest in size. On moving down the group from Na to Cs size increase. That's why the bonding…

Q: A hydride of silicon prepared by the reaction of Mg2Si with acid exerted a pressure of 306 torr at…

A: Ideal gases are those gases which follow ideal gas equation. The relation between pressure, volume,…

Q: Is iodine monochloride in solid form conductive with respect to electrical conductivity? Why or why…

A: Iodine monochloride is a Black solid. Iodine monochloride is polar in nature due to…

Q: what is the density in g/L (STP) of SO2?

A: Density is defined by the ratio of mass to the volume. it is expressed in mathematically is as…

Q: lowing is the most acidic compound?

A: Acidic strength of a compound is depend on tendency to loss hydro easily.  So, negative…

Q: Can sodium nitrite form H-bonds with water?

A: Sodium nitrite is NaNO2  It is an ionic compound

Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.