WebMar 24, 2015 · Balancing Equations 1. ____H2 + ____O2 ____H2O 2. ____H3PO4 + ____KOH ____K3PO4 + ____H2O 3. ____K + ____B2O3 ____K2O + ____B 4. ____HCl + ____NaOH ___… Web分子晶体的结构与性质 1.常见的典型的分子晶体 (1)所有非金属氢化物,如水、氨、甲烷等; (2)部分非金属单质,如卤素(x2)、o2、s8、p4、c60 等; (3)部分非金属氧化物,如 co2、so3、p4o10 等; (4)几乎所有的酸; (5)绝大多数有机物的晶体。
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WebBalance the equation. B. Calculate the moles of CS2 produced when 1.5 mol S8 is used. Answer: A. 2CH4+S8~2CS2+4H2S B. 3mol CS2. ... Choose the letter that best answers the question or completes the statement. a. making ice cubes b. adding sugar to tea c. cutting wrapping paper d. baking a cake. Verified answer. Webs8 (s)+2h 2o(g) 。在某温度下达到平衡,测得密闭系统中各组分浓度 ... 测得 h2 和 cs2 体积分数如下表: 温度/℃ 950 1000 1050 1100 1150 h2 /v(%) 0.5 1.5 3.6 5.5 8.5 cs2 /v(%) 0.0 0.0 0.1 0.4 1.8 请回答: ①反应Ⅲ能自发进行的条件是_____。 ②下列说法正确的是_____。 a.其他条件不变 ... circleville wv county
C+S8=CS2 balance the chemical equation @My …
WebMay 4, 2015 · Carbon disulfide can be prepared from coke (an impure form of carbon) and elemental sulfur. Calculate the amount of heat absorbed when 1.40 mol S81.40 mol S8 is reacted at constant pressure. Calculate the amount of heat absorbed in the reaction of 179 g179 g of carbon with excess sulfur. Weba small whole number that appears in front of a formula in a balanced chemical equation. balanced equation. a chemical equation in which mass is conserved; each side of the equation has the same number of atoms of each element. combination/synthesis reaction. a chemical change in which two or more substances react to form a single new substance. WebThe sum of the atomic masses of all the elements in the compound. Select all of the statements below that correctly interpret the following balanced equation: 4HCl (aq) + MnO2 (s) → MnCl2 (aq) + 2H2O (l) + Cl2 (g) The MnCl2 produced is dissolved in water. Water is both a solvent and a product in this reaction. circleville youth baseball