Give a reason why iodine is a solid and not a gas at room temperature

Q: What is the chemical formula of diphosphorus pentabromide

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

Q: 22. A chemist must attempt to perform a lab investigation according to natural conditions found…

A: A chemist surely attempt  to perform a lab investigation according to natural conditions or from…

Q: Rank barium manganese oxygen silicon and nickel from highest to lowest ionization

A: Solution Ionization energy is easy terms will be delineate as a live of the problem in removing AN…

Q: Provide the molecular formulas for the following compounds Aluminum bromide Gallium phosphide…

A: Molecular formula of ionic compounds can be written by following electrical neutrality principle…

Q: Write the chemical formula for calcium sulfide

A: Calcium sulfide  The calcium sulfide compound is an ionic compound. Here, calcium is a metal (S -…

Q: In what physical state does chlorine exist at −65°C?

A: The physical state of an element depends upon its boiling point and melting point temperatures.

Q: how many grams of al2o3 can be made for 6.95 grams of Al

A:

Q: Using the evidence above, list the chemical and physical properties of Phosphorous. Physical…

A: The long form of periodic table is the arrangement of all elements in the increasing order of their…

Q: The alum we produced is expected to be the dodecahydrate (AlK(SO4)2•12 H2O). What is the percent…

A: The objective of this question is to calculate the mass of the alum produced would predict to be…

Q: What is the mass percent of P in H3PO4? Show your calculations please.

A: Percent mass of an element in a compound can be calculated by using the following formula:

Q: Name ii) The following alcohol can produce 3 different alkenes through an E1 dehydration (loss of…

A: Answer: 1) 3 products 2) According to Saytzeff rule highly substituted alkenes are more stable

Q: with

A: Fluorine and Chlorine elements belonging to Halogen family these two elements present in group -17,…

Q: palladium(III) iodide Express your answer as a chemical formula.

A: A chemical formula of an ionic compound can be formed by criss-crossing the valencies of ions.

Q: While glass is considered to have the formula SiO2, is that the reality? Why or why not.

A: Glass is a widely used material known for its transparency, versatility, and durability. While it's…

Q: What mass, in grams, of MgO can be produced

A: Number of moles = mass/molar mass  First we find out the limiting reactant and then after applying…

Q: Give an example of an ioninc compound? Describe why it is classified as an ioninc

A: Ionic compounds are formed by transfer of electrons between the metal and non-metal.

Q: You are told by your instructor to go to the stock room and find a bottle of the chemical K3Cl. Does…

A: K is potassium, element of group 1 of periodic table with 1 valence electron And Cl is chlorine,…

Q: Consider the balanced reaction of magnesium and oxygen.   2Mg+O2⟶2MgO2Mg+O2⟶2MgO What mass, in…

A: Number of moles of Mg and O2 are calculated as follows: No. of moles of Mg=massmolar mass=1.41…

Q: What would you expect to observe about your anhydrous copper(II) sulfate on a hot,

A: We have to observe the behaviour of anhydrous copper sulphate.

Q: Are ions present in a sample of P₄O₆? Explain.

A: The chemical bonding is of two types namely ionic bonding and covalent bonding. When the metal and…

Q: Complete the following chemical equations.a. Na(s) + H 2 O(l) →b. K(s) + H 2 O(l) →

A: The complete chemical equation has to be given.

Q: Draw the electron dot formula and the structural formula for a molecule of SiO2

A:

Q: Describe the structural features and type of chemical bonding that exists in solid sodium chloride.

A: Sodium chloride is a water soluble compound which composed of sodium and chloride ions. It is a…

Q: 44. Explain why the diatomic nitrogen atom is unusable by most plants. Where do plants get nitrogen?

A: The strong triple bond in molecular nitrogen renders it unusable by plants. In order to be used as…

Q: Consider the balanced reaction of magnesium and oxygen.   2Mg+O2⟶2MgO2Mg+OX2⟶2MgO   What mass, in…

A: Mass of Mg = 1.92 g Mass of O2 = 2.66 g Mass of MgO = ?

Q: Hydrated substances contain H2O as part of their formulas. When a hydrated substance is heated,…

A: The colour of anhydrous cobalt (II) chloride is sky blue. On exposure of moisture(water vapours), it…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.