Which substances have the lowest melting points: ionic, covalent, or metallic? What does the low melting point tell you about the strength of the forces holding the particles together?

Q: Q1: Determine the composition in atom percent of an alloy that consists of 97 wt% aluminum and 3 wt%…

A:

Q: 12. (3) How does a nucleus for a semi-crystalline polymer form crystalline nuclei, and how do they…

A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Q: Find the theoretical density of aluminum given the table below and atomic mass of aluminum of 26.98…

A: Answer: Aluminum has FCC crystal packing in which atoms are present at the vertices and center of…

Q: Explain why solid ionic compounds are hard and have high melting point

A: Ions are charged species which can be both positively or negatively charged. These are of two types…

Q: solution? A) AuCu    B) CaCl2    C) NF3    D) SiC A solid is tested for malleability, electrical…

A: 01. Calcium chloride (CaCl2) is a brittle solid crystalline substance that dissolves in water to…

Q: A substance formed a crystals of equal numbers of cations and anions held together by ionic bonds is…

A: To find : a substance formed a crystals of equal numbers of cations and anions held together by…

Q: Differentiate the metals and nonmetals based on their: Intramolecular Bond, Intermolecular Bond, and…

A: Metals have loosely bonded valence electrons and can easily donate elctrons to other atoms .They…

Q: What two properties of an ion dictate whether it can fit into a molecule/crystal lattice?

A: In a crystal lattice, the ions or molecules are arranged in a definite order. In the crystal…

Q: The density of a metal is 8.92 g/cm3. The metal crystalizes into FCC structure. If the atomic radius…

A: Given  Density of metal ( d ) = 8.92 g/cm3 Crystal type = FCC lattice  atomic radius of metal ( r )…

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: if the atoms in water do not change, how is water able to exist as gas, liquid or solid?

A: The water molecules consists of one oxygen atom at the middle and two hydrogen atoms at extreme…

Q: Directions: Below is the Concept Map. Fill in the boxes with the word or words that they are…

A: In the question, chemical bond (chemical bonding) given, which is the force exist between two or…

Q: Why is mercury a liquid? Why does it have a 1ion?

A: There are three categories of elements in periodic table. These are metals, non metals and…

Q: Present your view on this ? "The more polarizable the atoms, the higher the boiling point"

A: Boiling point is the physical properties of the compound. It is the temperature at which the liquid…

Q: Decide which intermolecular forces act between the molecules of each compound in the table below.

A: Based on the polarity and types of bonds present in a molecule, the intermolecular forces present…

Q: Explain the factors determine the melting point of a compound ?

A: The temperature at which a solid converts its state to liquid at atmospheric pressure is called the…

Q: what type of crystalline solid would form for Br2?

A: Answer: There are four type of crystalline solids: 1. Ionic solids 2. Metallic solids 3. Network…

Q: Which is a property of substances that exhibit metallic bonding?

A: Metallic bonding occurs in substances that involve electrostatic forces of attraction among the…

Q: Substance Cl2 b.p. –34 °C HCl b.p. –85 °C Composition type (ionic, etc):     Physical state…

A: Two substances chlorine and HCl are given . We have to complete the table .

Q: Answer the following questions: 1. Which of the substances appears to be made of crystals? 2. Defend…

A: The substance which is crystal has to be identified and observation by which decision was made has…

Q: One famous application of nanomaterials are in the cosmetic industry, identify the nanometrials used…

A: Nanomaterials are those material which has at least one of its dimension in nano range, that is…

Q: Which of the following is the reason that metals conduct electricity. A Electrons and protons in the…

A: Option D is correct answer.

Q: The melting and boiling points of sodium metal are much lower than those of sodium chloride. What…

A: Melting point of any substance is defined as the temperature at which the substance will start…

Q: 5. You are given a list of binary compounds (only two different elements) and asked to determine the…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: What important information does the melting point of a substance provide?

A: Melting point of a substance is a defined as the temperature at which a solid melts. It is a…

Q: what parts of the earth make up the Lithosphere?

A: lithosphere

Q: Indicate the strongest force holding the crystals together in AI and I2

A: Aluminum is classified as a metal and form metallic solid in which cations, Al3+, are surrounded by…

Q: Molten materials involved in ionic bonds are electrically conductive. TRUE or FALSE?

A: Given : We have to tell whether the statement is true or false.

Q: What are the types of H-bonding? Which of them is stronger?

A: Given: Hydrogen bonding

Q: True or false? SEM can investigate the crystalline structure of an object

A: SEM microscope can be defined as a  microscope that scan the image of an object.

Q: Draw a picture of the ions in a crystal (solid) of sodium sulfate. Make sure that the ions are of…

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Q: all about crystal structure of NaCl

A:

Q: ZnCl2 what is the force holding the solid together? Dipole, dispersion, H-bond, metallic bonding,…

A: Given,  ZnCl2

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: Q1 Solid matter held in place by electrostatic attraction forces between positive ions and a "sea"…

A: For Q1 Answer : Ionic bonding. It is so because Ionic bond is a type of linkage formed from the…

Q: Consider the force of interaction between a cation and an anion. Which of the following does not…

A:

Q: For each of the following pairs of substances, predict which member of the pair will have the higher…

A: Ionic compounds have strong electrostatic attractions between oppositely charged ions in an array.…

Q: 37. What happens when polar molecules are between oppositely charged metal plates?

A:

Q: Which structure is most consistent with a non-crystalline structure?

A:

Q: For each of the following pairs of substances, predict which will have the higher melting point, and…

A: The melting point of substances depends on the crystaline structure ,type of bonding and inter…

Q: Which compound likely has a higher melting point, aluminum chloride AlCl3 or Phosphorus trichloride…

A: So the melting point of given two compounds i.e. aluminium Chloride ( AlCl3) and phosphorus…

Q: 6. 7. 8. 9. 10. A substance is a brittle crystal that conducts electricity in molten liquid state…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: Why do the rows in the periodic table get progressively longer as you move down the table? Explain…

A: The periodic table consists of horizontal rows called periods and vertical columns called groups.…

Q: please explain before answering On the basis of your knowledge of bonding in liquids and solids,…

A: Melting point can be defined as the temperature at which the substance starts melting.

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…

Q: The lattice energy of an ionic solid is lowest if a) the distance between the ions is low b) the…

A: The enthalpy change during the formation of one mole of ionic crystal from one mole of gaseous…

Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.