What state(s) of matter are the hydrogen halides present in at room temperature? gas solid O liquid and gas O liquid

Q: Welders use helium(He) and argon(Ar) gases to blow over the metal during the welding process. Why…

A: The inert nature of helium and argon make it uses in the welding process. They are used to create a…

Q: One of the following molecules is a solid at room temperature. Which one? Why? a. Br2 b. I2 c. F2 d.…

A: Option b. I2 is the correct optionA element to be solid at room temperature, It must have very…

Q: What is the chemical formula of diphosphorus pentabromide

A: The chemical formula of diphosphorus pentabromide can be written as P2Br5.

Q: Which element is the most metallic? F Au Fr Li   What helps particles move?  Kinetic Molecular…

A: First group elements are most metallic character.  so lithium (Li) is correct option.…

Q: Which of the following compounds do not exist as gases at room temperature and pressure? Select one:…

A: Which of them not exist as gas at room temperature and pressure?

Q: By fully describing the nature of each solid including a diagram for each, explain why solid HCl…

A: Melting point of a solid is quite dependent on the nature of the force between the atoms in a…

Q: Write a feature which will distinguish a metallic solid from an ionic solid.

A: Introduction : We have to tell one feature how metallic solid is different from ionic solids .

Q: Explain your understanding about the Biomaterial and its structure compared to the inorganic…

A: A question about biomaterial, inorganic material and the classification of biofuels.

Q: Chromium, a transition metal used in chromeplating, forms both the C r 2+ and C r 3+ ions. Write…

A: Chromium, a transition metal used in chrome plating, forms both the Cr2+ and Cr3+ ions. Write the…

Q: The interaction between Ca and Cl is   a. ionic in nature     b. nonpolar covalent in nature…

A: Ionic compounds generally form between elements that are metals and elements that are nonmetals. For…

Q: Write the chemical formula for diphosphorus pentabromide

A: From name we can predict Formula of given compound.

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: At room temperature, one of these compounds is a solid and one is a liquid: SiO, or PBr3.

A:

Q: Nitrogen is found in nature as N2(g). Would you expect phosphorus to be found innature as P2(g)?…

A: Nitrogen has a smaller size due to which it forms p∏-p∏ multiple bonds with itself. It has high bond…

Q: Formalin is 37% formaldehyde in water solution. Formaldehyde is soluble in water because it is alan*…

A:

Q: The ion, Te2", is isoelectronic with which noble gas? Enter an atomic symbol. Question 8 Which is…

A: The atomic number of Tellurium (Te) is 52, so it has 52 protons, and in-ground state it has 52…

Q: which of the following is a physical property of molecular oxygen O2 ? cooling oxygen to 183C…

A: Out of the following the physical change is:coolong oxygen to 183∘C converting it into a liquid.This…

Q: Write the chemical equation for ammonium carbonate and sodium hydroxide yield  sodium carbonate,…

A: One mole of ammonium carbonate reacts with two moles of sodium hydroxide to produce one mole of…

Q: Consider this list of substances: H2O, Na, NaOH, CH4. Match these substances with the properties…

A: To match: the properties of the given substances.

Q: Use IUPAC rules to write the chemical formulae for each of the following: 1. Strontium chlorite 2.…

A:

Q: Write a balanced chemical equation based on the following description: the reaction of gaseous…

A: A balanced chemical reaction is the representation of the chemical process in which the number of…

Q: Like CO2, water has two polar bonds but unlike CO2, water is polar overall. Explain why this is so?

A: Since we know that the molecular geometry of CO2 is Linear  and H2O is bent .

Q: Formula for maganate and why?

A: An inorganic compound is a substance in which two or more chemical elements are combined. An…

Q: Explain why N, is a gas at room temperature but H;O is a liquid

A: the answer is as follows:

Q: Summarize the chief forms and uses of chlorine compounds.

A: Chlorine (Cl) is the member of the halogen family of the periodic table with atomic number 17 and…

Q: Arrange the nonmetal elements of period 3 in order of decreasing melting point.

A: The melting point of a substance is the temperature, at which the solid phase converted to the…

Q: The structure and bonding of carbon dioxide and silicon dioxide both differ from each other. State…

A: Both silicon dioxide and carbon dioxide differ with each other in bonding and structure  silicon…

Q: True or False: Nitrogen Oxide is present in automobile exhaust.

A: Nitrogen oxides, including NO and NO2, are produced as a result of combustion in a car engine. Pure…

Q: Which of the following ionic compounds is INSOLUBLE in water? O LizPO4 O NaCl O FeF3 O Na2SO3 O…

A: Solubility : It is the property of any chemical substance called solute to get dissolved in a…

Q: all about crystal structure of NaCl

A:

Q: Describe the molecular structure of each of the following molecules or ions listed. (a) PH3(b)…

A: The molecular structure is determined by the number of bond pairs and lone pairs around the central…

Q: Which of the following is expected to have the lowest melting point? I3D II IV O II O IV O O o o

A: Melting point of a compound depends on the strength of intermolecular forces. Greater is the…

Q: Properties "X" Melting Point (°C) 800 BO 1200 Soluble in water yes no no no по Yes Solid state…

A: Metal are good electrons donors and also they have high melting point and conducts electricity in…

Q: What is the chemical formula for the compound formed between indium(III) and selenium? formula:

A: Ionic compounds are formed by the transfer of electrons. The cation donates the electrons and the…

Q: why halogens are highly volatile in nature?

A: Boiling point of a molecule depends upon the intermolecular force present in it. If the…

Q: What sulfur-containing molecule forms sulfuric acid when it reacts with H2O?

A: Sulphur trioxide reacts with water to form sulphuric acid.

Q: electronegative

A:

Q: NH2 HNO3 H,SO4 2 1

A: When benzene reacts with mixture of acids then nitrobenzene is formed.  Nitrobenzene can be reduced…

Q: Write the chemical formula for sodium hydride

A: To write the chemical formula of a compound first write the name of cation and after this write the…

Q: How is sodium carbonate prepared and explain the process.

A: Sodium carbonate is also known as washing soda. Its chemical formula is Na2CO3. It is used in the…

Q: Which of the following compounds is likely to have the lowest melting point?   : C a O MgO S c O Se…

A: The melting points of the oxides of the Alkaline Earth metals or 2nd group element increases till…

Q: Write the full electron configuration of Si, Si+4 and Si-4. How many valence electrons are in each…

A:

Q: the compound molecular in nature in gas phase but ionic in solid state is: a PCl5  b   CCl4 c  PCl3…

A: PCl5 is molecular in the gas phase

Q: Compare the physical properties (appearance, melting point, boiling point) of silicon dioxide and…

A: Silicon and carbon belong to the same group. The oxides of silicon and carbon are known as silicon…

Q: The state of matter in which ions move freely is Select one: O Gas O Solid O Plasma O Liquid

A: States of matter : Solid : The particles have very less space between them and the intermolecular…

Q: Use your knowledge of the correct number of covalent bonds to predict the formula for a simple…

A: When the electrons are equally shared among the atoms present in a molecule, covalent bonding is…

Q: What cannot form a chemical bond upon collision? O ions O protons O atoms O molecules

A: In this question, the species or particles that can not form bonds have to be determined. Chemical…

Q: Write chemical formula of the following structure. Remember to arrange the element in the correct…

A: Given that : We have to write the chemical formula for the following compound :

Q: The presence of partial charges on liquid molecules repel the charged ions, causing ions to bind…

A: We know that due to the electronegativity difference between the two covalently bonded atoms there…

Group 14 Elements

The following elements come under group 14 of the periodic table.