Chemical Earth. 1. What is the systematic name for a compound with the formula Cu2SO4? (A) (B) (C) (D) 3. In which compound do all atoms have the same electronic configuration? (A) (B) (C) (D) 4. Copper sulfide Copper (I) sulfate Copper (II) sulfate Copper disulfate LiF NaCl MgF2 NCl3 Identify the property which decreases across each row of the Periodic Table. (A) (B) (C) (D) Melting point Ionisation energy Valency Atomic radius 11. Which is correct
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I believe that Copper Sun should be taught to future generations because it is an inspirational and informational novel. This novel instructs us about a dark time in our history‚ and how if we want it not to repeat itself‚ we should advice future generations to prevent that from happening again. Copper Sun is an exceptional good read. The book teaches us multiple lessons about how you should always persevere through the difficult times just like the two main characters in the book‚ Polly and Amari
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‘’Copper sun by Sharon M Draper is a literary masterpiece that depicts the horrors of salary is told through the eyes of amari‚ a fifteen year old african from the Ewe tribe‚Amairi and her family lived in a village of ziavi‚untroubled‚and kind village but one day unexpected visitors described an strange milk faced men turned the village into a living nightmare with the help of the Ewe people trusted all the ashanti‚manny was slaughtered including the village chief‚amiri parents and siblings‚and most
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The discovery of copper does not have an exact date. Copper is said to be a prehistoric element. This element was said to be first discovered around 8000BC. The ancient civilizations started to take the copper out of the ore they found around 4000BC. This is when copper started to be put to good use. Early civilizations discovered that copper is malleable and is sharp. They realized they could make copper into tools and weapons. This was easier than the stone that they were originally using. This
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1 Determination of Empirical Formula: Preparation of a Copper Sulphide. Aim The aim of the experiment was to determine the empirical formula of sulphide of copper and to make sure that an amount of copper metal reacted with elemental sulphur‚ Eq. 1. To be able to calculate the empirical formula of copper sulphide‚ the mass (grams) of copper has to be known and the mass (grams) of copper sulphide after the reaction. Copper‚ chemical formula Cu‚ is a known metal with a red-brown
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Copper has been used in cookware because of its good thermal conductivity. In Eastern and Western cooking traditions‚ copper cookware sets were popular because they provided the best conductivity‚ and therefore the most even heating and cooking. Copper pots and pans were a staple of the colonial kitchen and have withstood the test of time to remain popular in the professional and home kitchen alike. Copper cookware sets will typically include a saut� pan‚ frying pan and a sauce pan. These are essential
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Bindahnee Group members: Claire Lee and Carrie Gale – Rm 53 DECOMPOSITION OF COPPER CARBONATE (CuCO3) AIM – To investigate the thermal decomposition of copper carbonate. (qualitative assessment) HYPOTHESIS – The products of the decomposition of copper carbonate will be a metal oxide (CuO) and carbon dioxide gas. APPARATUS – ITEM QUANTITY/CONCENTRATION Copper carbonate 2 g Limewater (saturated Ca(OH)2 solution) 10 mL Bunsen burner Matches Test tubes 5 Retort stand
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Copper vs. Fiber Modern telecommunication networks rely primarily on two types of cable. Older copper cables have been replaced in many cases by fiber optic "light pipes‚" first in undersea cables and major intercity trunks‚ and later directly to many homes and businesses. Principles Copper cables carry information as an electrical signal‚ which may be digital‚ as in phone lines‚ or analogue‚ as in audio speaker cable. In optical fibers‚ however‚ data is carried digitally by light from a laser
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Management Plan‚ (October 2008)‚ states that Nchanga Mine is located in Chingola‚ in the Copperbelt‚ Republic of Zambia. Historical operations began in the 1930 shortly after the discovery of a copper bearing ore outcrop in the Nchanga Stream. In 2004‚ Vedanta Resources took over the ownership of Konkola Copper Mines. Inherently‚ KCM assumed responsibility for all environmental liabilities left behind by the previous owners. The Nchanga Mining License Area (LML34) covers an area of 11
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Graphene replaced with copper Graphene nanoribbons have a current-carrying capacity two orders of magnitude higher than copper Recent research into the properties of graphene nanoribbons provides two new reasons for using the material for interconnects in future computer chips. In widths as narrow as 16 nm‚ graphene has a current-carrying capacity approximately a thousand times greater than copper while providing improved thermal conductivity. The current-carrying and heat-transfer measurements
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