解:根据在化合物中正负化合价代数和为零,已知钙为+2价、硅为+4价、氧为-2价、铝为+3;可得Ca2SiOx的x为:(+2)×2+(+4)+(-2)×x=0,则x=4;可得化学式Ca3SiOy中y为:(+2)×3+(+4)+(-2)×y=0,则y=5可得化学式Ca3Al2Oz中z为:(+2)×3+(+3)×2+(-2)×z=0,则z=6故选:...
试题解析:根据在化合物中正负化合价代数和为零,已知钙为+2价、硅为+4价、氧为-2价、铝为+3;可得Ca2SiOx的x为:(+2)×2+(+4)+(-2)×x=0,则x=4;可得化学式Ca3SiOy中y为:(+2)×3+(+4)+(-2)×y=0,则y=5可得化学式Ca3Al2Oz中z为:(+2)×3+(+3)×2+(-2)×z=0,则z=6...
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Yes (2) No (0) Report this review Worth the price 5 stars out of a maximum of 5 Out of all the Skinceutical products, this is the must have one. It definitely helps with the fine lines and makes my skin glow. Love that it's protecting me from the negative effects of the...
Out of all the Skinceutical products, this is the must have one. It definitely helps with the fine lines and makes my skin glow. Love that it's protecting me from the negative effects of the environment when I'm out and about. ...
可得Ca2SiOx的x为:(+2)×2+(+4)+(-2)×x=0,则x=4;可得化学式Ca3SiOy中y为:(+2)×3+(+4)+(-2)×y=0,则y=5可得化学式Ca3Al2Oz中z为:(+2)×3+(+3)×2+(-2)×z=0,则z=6故选C. 【分析】根据在化合物中正负化合价代数和为零进行解答本题....
百度试题 结果1 题目 水泥的主要成分有:Ca2SiOx、Ca3SiOy、Ca3Al2Oz ,其中x、y、z的值分别是( ) A. 2、2、3 B. 。2、3、3 C. 4、5、6 D. 4、6、6 相关知识点: 试题来源: 解析 C 反馈 收藏
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Cable de carga incluido Move 2 499 € Potente Estéreo Hasta 24 horas de autonomía Resistente al agua (IP56) Control por voz Controles táctiles Base de carga inalámbrica incluida Batería reemplazable Entrada de línea USB-C Carga de un dispositivo con puerto USB-C Explorar ...
Cable de carga incluido Move 2 499 € Potente Estéreo Hasta 24 horas de autonomía Resistente al agua (IP56) Control por voz Controles táctiles Base de carga inalámbrica incluida Batería reemplazable Entrada de línea USB-C Carga de un dispositivo con puerto USB-C Explorar ...