How many types of salt are there? What is an insoluble salt? Is KBr a salt? How do you make sodium bicarbonate? Why can salt and sugar both dissolve in water, even though one is ionic and the other is covalent? What is the melting point for salt?
How many elements are nonmetals? How are metal atoms arranged according to metallic bonding? Which are more common: metals or nonmetals? What are some uses of nonmetals? Which property do metalloids share with nonmetals? Why do covalent bonds form?
energy. A 90° deviation gives almost complete loss of binding energy, due to drastic reduction of atomic orbital overlap. Because hydrogen bonds have strict distance and angle requirements, they are not very forgiving of design shortcomings. With th...
Hydrogen shares its single valence electron with one of the valence electrons of oxygen; when two hydrogen atoms form these covalent bonds with a single oxygen atom, the result is H2O or water. (Image credit: Encyclopaedia Britannica/UIG Via Getty Images) Evolution of the Periodic Table When ...
How many covalent bonds are normally formed by O? Distinguish between an atom and an element. Which element has the lightest atoms? What types of atoms typically form ionic bonds? Exactly, how small are atoms? Include an analogy. What type of elements are used to make n...
How many covalent bonds and how many lone pairs are there in the Lewis structure of (CO_3)^{2-}? What is the molecular geometry and electron geometry of CH3OH? How many lone pairs of electrons does the central atom have? Give the number of lone...
How many covalent bonds can nitrogen form? What is H_2O and what is that made of or is that a molecule or atom? You have determined that your sample is an ester, with a molecular mass of approximately 104g/mol. How many C and O atoms s...
How can two different nonmetals form a compound? Find the number of Ions, Cations and Anions from Copper(I)Hydroxide. Covalent bonds occur between anion with cations or between different cations or between different anions? What are the two types of ions? Define polyatomic ion Why are ionic ...
Can neon and carbon be joined by a covalent bond? Explain. 1. What atomic or hybrid orbitals make up the \pi bond between C_1 and C_2 in propyne, CHCCH_3 ? ( C_1 is the first carbon in the formula as written.) 2. How many \sigma bonds does Ex...
Use your knowledge of the correct number of covalent bonds to predict the formula for a simple compound formed between carbon and (a) hydrogen, (b) bromine, (c) sulfur, and (d) helium. Write the Lewis structure for O2. What kind of bond has to be formed between the two oxygens to ...