![]() It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron affinity and the third-highest electronegativity on the revised Pauling scale, behind only oxygen and fluorine.Ĭhlorine played an important role in the experiments conducted by medieval alchemists, which commonly involved the heating of chloride salts like ammonium chloride ( sal ammoniac) and sodium chloride ( common salt), producing various chemical substances containing chlorine such as hydrogen chloride, mercury(II) chloride (corrosive sublimate), and hydrochloric acid (in the form of aqua regia). Chlorine is a yellow-green gas at room temperature. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Enter your answer here starting with Fa, then C, then H in the form of Fa9C9H9 (where the nines represent the subscripts in your formula, btw, the real answer isn't Fa9C9H9).Chlorine is a chemical element with the symbol Cl and atomic number 17. To determine the formula of anticovidium, Fauci determined that a 2.75 g sample contained 1.68 g of Fa, 0.894 g of C, and the rest was H.ĭetermine the empirical formula for anticovidium. Faucium has been used to create a new compound, anticovidium, which contains Fa, carbon, and hydrogen. Fauci it has a molar mass of 33.88 g/mol. Faucium (Fa) is a new element discovered by Dr. If Eliza is starting with 15.0 g of Cl2(g) and 20.0 g of KOH, what mass of the reactant in excess is left at the end of the reaction?Īssume the reaction uses up all of the limiting reactant.ġ3. Eliza the chemist is using the reaction shown below to make bleach for whitening paper. If Eliza is starting with 15.0 g of Cl2(g) and 20.0 g of KOH, which reactant is the limiting reactant, and why?ġ2. If Eliza is starting with 15.0 g of Cl2(g) and 20.0 g of KOH, what is the maximum mass of KCl that can be formed?ĢCl2(g) + 4KOH(aq) ? 3KCl(aq) + KClO2(aq) + 2H2O(l)Įnter your answer for the maximum mass possibleġ1. Use the equation of the line to calculate how many cats (fractional cats are acceptable) must have been present in Alvoran's van if 1,622 balloons were popped in a month.ġ0. The following graph was obtained from data for Alvoran's Balloon Delivery service that transported feral cats while doing balloon deliveries. How many atoms of Kt are in 2.79x10-2 ng of this substance?ĩ. On Superman's home planet of Krypton, the fictional element kentium (Kt) has a molar mass of 107.99 g/mol. 5 g of CO2, according to the following equation?Ĭ5H12 (l) + 8O2 (g) ? 6H2O (g) + 5CO2 (g)Ĩ. What mass, in g, of pentane must react in order to form 24. ![]() For the hypothetical element oregonium (Or), 0.12410 moles of the element has a mass of 30.89 grams.ħ. Determine the empirical formula for this substance.Ħ. Daresha's experiment shows that a 1.400 g sample of a compound of titanium and chlorine can be decomposed to leave 0.350 g of titanium metal. ![]() Daresha the chemist wants to determine the empirical formula of a compound. How many mL are equivalent to 4.23x105 cuestaliters (cL), a small unit of measure? A cuestaliter (cL) is equal to 1x10–10 liters.ĥ. For a -2 anion of xenon-136, there are _ electrons, _ protons, and _ neutrons.Ĥ. According to Marvel Comics, Captain America's shield is made of a vibranium/adamantium alloy (vibrantium?) and has an area of 0.404 ft2. What is the mass in g of 0.149 mol of KtF5 Ģ. On Superman's home planet of Krypton, the fictional element kentium (Kt) has a molar mass of 94.19 g/mol. ![]()
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