Explain why diamond is an electrical insulator and graphite is an electrical conductor. Explain why copper possesses a high electrical conductivity. Why do metals conductivity rate reduces with increase in temperature? Why do metallic compounds conduct electricity as a solid? How do cond...
So why is graphite different to diamond? The atoms inside the two materials are arranged in different ways, and this is what gives the two allotropes their completely different properties: graphite is black, dull, and relatively soft (soft and hard pencils mix graphite with other materials to ...
In terms of structure, explain why a water solution of salt conducts electricity but a water solution of sugar does not. Briefly compare and explain the difference between a crystal structure and a crystal system. Explain what the chemical p...
Explain why aqueous solution of sodium chloride conducts electricity where as solid sodium chloride does not. Why is the ionic compound NaCl (table salt) able to dissolve in a glass of the molecular compound water (H_2O)? NaCl does not conduct electricity in solid-state, however, ...
Question: Explain why covalently bonded materials are generally less dense than ionically or metallic bonded materials. Covalent Bonds: Covalently bonded materials have covalent bonds between their atoms. The covalent bonds are formed when electrons are shared by the ...
In terms of structure, explain why a water solution of salt conducts electricity but a water solution of sugar does not. Explain in terms of molecular structure, why sugars have a relatively high melting point compared to hydrocarbons of a similar size. Briefly explain why the...
Why do covalent compounds not conduct electricity? Explain why diamond is an electrical insulator and graphite is an electrical conductor. How do we know that matter is composed of atoms? Explain why ionic solids do not conduct electricity in the solid state but are strong c...
In terms of structure, explain why a water solution of salt conducts electricity but a water solution of sugar does not. Describe how you could make 5 L of a 0.2 M dextrose solution from a 5.0 M dextrose solution. The term reagent is commonly used in chemistry. What does it mean? Expl...
Explain why. A. a lustrous, yellow solid that conducts electricity B. Which of the following forms an ionic solid? (a)\ SO_{3} (b)\ C_{4}H_{9}NH_{2} (c)\ Co (d)\ NH_{4}NO_{3} 1. Classify each of the following solid...
Explain why graphite has a lower melting point than diamond even though both are carbon compounds. The metallurgical process in which a metal gets to a point of the fused state is called? Is a substance fizzing a composition change? Explain. Why iron smelting is a physical process? What elem...