氢氧化钙:化学式:CaOH2俗名:___CaOH2+ 2HCl=Ca Cl2+2H2OCaOH2+ H2SO4=Ca SO4+2H2OCaOH2+Na2CO3
氢氧化钙:化学式:CaOH2俗名:___CaOH2+ 2HCl = Ca Cl2+ 2H2OCaOH2+ H2SO4= Ca SO4+2H2OCaOH2+Na
Balance CaOH + H2SO4 = Ca2SO4 + H2O Using the Algebraic Method Step 1: Label Each Compound With a Variable Label each compound (reactant or product) in the equation with a variable to represent the unknown coefficients. a CaOH + b H2SO4 = c Ca2SO4 + d H2O Step 2: Create a ...
Balance CaH2O2 + H2SO4 = (CaOH)2SO4 + H2O Using the Algebraic Method Step 1: Label Each Compound With a Variable Label each compound (reactant or product) in the equation with a variable to represent the unknown coefficients. a CaH2O2 + b H2SO4 = c (CaOH)2SO4 + d ...
(4)土壤中的酸主要为硫酸,与氢氧化钙反应生成硫酸钙和水,反应的化学方程式为:Ca(OH)2+H2SO4=CaSO4+2H2O. 故答案为:(1)CaO+H2O═Ca(OH)2;(2)CaCO3高温–––––––高温_CaO+CO2↑;(3)Fe+CuSO4=FeSO4+Cu;(4)Ca(OH)2+H2SO4=CaSO4+2H2O. ...
1硫酸和氧化钙反应化学方程式2CaO + 2H2O = 2Ca(OH)2 Ca(OH)2 + H2SO4 =CaSO4 + 2H2O 还是CaO+H2SO4=CaSO4+H20Ca(OH)2 + H2SO4 =CaSO4 + 2H2O 还是CaO+H2SO4=CaSO4+H20。给个准点的。 2 硫酸和氧化钙反应化学方程式 2CaO + 2H2O = 2Ca(OH)2 Ca(OH)2 + H2SO4 =CaSO4 + 2H2O...
答案见上2.C [反应①的产物为CO和H ,反应②的产物为CO 和 H ,反应 ③的原料为CO 和 H .A项正确;反应③将温室气体CO 转化为 燃料CH OH.B项正确;反应④生成物中 H2OO为气态,C项生成物 中H2O为液态.故C项中反应的焓变不为 d/2kJ⋅mol .C项错 误:依据盖斯定律可知 ②*2+③*2+...
解答解:(1)氧化钙与水反应生成氢氧化钙,符合“多变一”的特征,属于化合反应;故填:H2O+CaO=Ca(OH)2 (2)碳酸生成水和二氧化碳,符合“一变多”的特征,属于分解反应,故填:H2CO3=H2O+CO2↑ (3)水在通电的条件下生成氢气和氧气,符合“一变多”的特征,属于分解反应,故填:2H2O通电–––––––通电_2H2...
CaOH2OCaOH22NaOHH2SO4Na2SO4H2OBaCl2H2SO4BaSO42HCl分析所谓中和反应就是指酸和碱生成盐和水的一类反应。中和反应一定是复分解反应复分解反应不一定是中和反应生成盐和水的反应不一定是中和反应。制作松花蛋所用的配料主要有纯碱、食盐、生石灰和草木灰主要成分为K2CO3和水等物质制作时只需要将它们混合并充分搅...
a = 1 ((CaOH)2SO4) b = 1 (H2SO4) c = 2 (H2O) d = 2 (CaSO4) Step 4: Substitute Coefficients and Verify Result Count the number of atoms of each element on each side of the equation and verify that all elements and electrons (if there are charges/ions) are balanc...