Which of the following formulas is correct for iron(III) oxide?
A: FeO
B: [img=40x22]18034caa951de1d.png[/img]
C: [img=40x22]18034caa9cddb62.png[/img]
D: [img=47x22]18034caaa50c5a1.png[/img]
A: FeO
B: [img=40x22]18034caa951de1d.png[/img]
C: [img=40x22]18034caa9cddb62.png[/img]
D: [img=47x22]18034caaa50c5a1.png[/img]
举一反三
- 设[img=162x19]17e0ab913cc7ca8.jpg[/img]且X，Y相互独立，则[img=84x19]17e0ab9147a14b0.jpg[/img]. A: 14 B: 22 C: 32 D: 40
- Which of the following formulas is correct for tin (II) oxide? A: SnO B: [img=42x22]18034caa97d59a3.png[/img] C: [img=42x22]18034caa9fd8b4a.png[/img] D: [img=42x22]18034caaa7e8b1f.png[/img]
- Which of the following formulas is correct for magnesium oxide? A: [img=47x23]18034caab002614.png[/img] B: [img=40x23]18034caab8b6e26.png[/img] C: [img=34x19]18034caac2013d6.png[/img] D: [img=37x19]18034caacae8554.png[/img]
- 设[img=13x19]1803856dcb79737.png[/img]是圆柱面[img=100x26]1803856dd4e9a74.png[/img]与[img=95x23]1803856ddd3f6e9.png[/img]所围圆柱的外侧，则[img=267x48]1803856de8977ee.png[/img]等于 A: [img=31x22]1803856df0af4a3.png[/img] B: [img=40x22]1803856df8c861d.png[/img] C: [img=40x22]1803856e009dda2.png[/img] D: [img=40x22]1803856e09a9666.png[/img] E: [img=40x22]1803856e1275a94.png[/img] F: [img=40x22]1803856e1b05c6e.png[/img] G: [img=40x22]1803856e2434279.png[/img] H: [img=40x22]1803856e2c9c0c8.png[/img] I: [img=40x22]1803856e35779a2.png[/img] J: [img=49x22]1803856e3e86cc8.png[/img]
- 设[img=13x19]18030f91887aa57.png[/img]是圆柱面[img=100x26]18030f9190bf46f.png[/img]与[img=95x23]18030f9198caa29.png[/img]所围圆柱的外侧，则[img=267x48]18030f91a278826.png[/img]等于 A: [img=31x22]18030f91aadf149.png[/img] B: [img=40x22]18030f91b302b36.png[/img] C: [img=40x22]18030f91bb18085.png[/img] D: [img=40x22]18030f91c3ca99a.png[/img] E: [img=40x22]18030f91cbc05f0.png[/img] F: [img=40x22]18030f91d342525.png[/img] G: [img=40x22]18030f91db87ff9.png[/img] H: [img=40x22]18030f91e392b19.png[/img] I: [img=40x22]18030f91ec13a44.png[/img] J: [img=49x22]18030f91f49d7eb.png[/img]