本课配套习题挑战模式1/5
下列叙述中错误的是
A: 水分子是保持水的化学性质的最小粒子 |
B: 水是由氢元素和氧元素组成的氧化物 |
C: 电解水生成氢气和氧气的体积比为2:1 |
D: 液态水变成水蒸气的过程中水分子变大了 |
- 提示1:PHA+5pys6aKY6ICD5p+l5rC055qE57uE5oiQ44CC5LiA5Liq5rC05YiG5a2Q55Sx5Lik5Liq5rCi5Y6f5a2Q5ZKM5LiA5Liq5rCn5Y6f5a2Q5p6E5oiQ44CCPC9wPg==
- 提示2:PHA+54mp6LSo55qE54q25oCB5Y+R55Sf5pS55Y+Y5pe277yM5YiG5a2Q55qE5aSn5bCP5LiN5Y+Y77yM5Y+q5piv5YiG5a2Q6Ze055qE6Ze06Led5aKe5aSn5LqG44CCPC9wPg==
- 答案:RA==
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
本课配套习题挑战模式2/5
下列有关分子的知识,正确的是
A: 水变为水蒸气,说明分子受热变大 |
B: 石蜡受热熔化,说明分子分成了原子 |
C: 打开浓氨水的试剂瓶,能闻到刺激性气味,是由于分子在不停的运动 |
D: 空气中的氮气和氧气经混合后,它们的化学性质都发生了改变 |
- 提示1:PHA+5rOo5oSP54mp6LSo54q25oCB55qE5Y+Y5YyW5Y+q5piv5YiG5a2Q6Ze06Led55qE5pS55Y+Y77yM5YiG5a2Q5pys6Lqr5bm25rKh5pyJ5Y+R55Sf5pS55Y+Y44CCPC9wPg==
- 提示2:PHA+5Lik56eN5rCU5L2T55qE5re35ZCI5bm25rKh5pyJ5Y+R55Sf5Y+N5bqU77yM5Zug5q2k5YiG5a2Q5LiN5Y+Y77yM5YyW5a2m5oCn6LSo5LiN5Y+R55Sf5pS55Y+Y44CCPC9wPg==
- 答案:Qw==
PHA+QeOAgeawtOWPmOS4uuawtOiSuOawlO+8jOaYr+WboOS4uuWIhuWtkOmXtOmalOmaj+a4qeW6puWNh+mrmOiAjOWinuWkp++8jOWIhuWtkOacrOi6q+Wkp+Wwj+S4jeWPmO+8jOatpOmhuemUmeivr++8jjxicj5C44CB55+z6Jyh5Y+X54Ot54aU5YyW5piv54mp55CG5Y+Y5YyW77yM5Y+R55Sf5pS55Y+Y55qE5piv5YiG5a2Q6Ze06ZqU77yM5YiG5a2Q5pys6Lqr5LiN5Y+R55Sf5Y+Y5YyW77yM5q2k6aG56ZSZ6K+v77yOPGJyPkPjgIHmiZPlvIDmtZPmsKjmsLTnmoTor5XliYLnk7bvvIzog73pl7vliLDliLrmv4DmgKfmsJTlkbPvvIzmmK/nlLHkuo7liIblrZDlnKjkuI3lgZznmoTov5DliqjvvIzor7Tms5XmraPnoa7vvI48YnI+ROOAgeepuuawlOS4reeahOawruawlOWSjOawp+awlOe7j+a3t+WQiOWQjuayoeacieWPkeeUn+WMluWtpuWPmOWMlu+8jOWIhuWtkOmDveS/neaMgeWOn+adpeeahOaAp+i0qO+8jOWug+S7rOeahOWMluWtpuaAp+i0qOmDveayoeacieWPkeeUn+aUueWPmO+8jOaVheatpOmhuemUmeivr++8jjxicj7mlYXpgIlDPC9wPg==
本课配套习题挑战模式3/5
下列变化是由于构成物质的分子本身发生变化而引起的是
A: 氢气在氧气中燃烧生成水 |
B: 冰块融化成水 |
C: 樟脑丸放在衣柜中逐渐消失 |
D: 碘加热后变成紫色蒸气 |
- 提示1:PHA+54mp6LSo55qE5YiG5a2Q5pys6Lqr5Y+R55Sf5Y+Y5YyW5Lmf5bCx5piv5Y+R55Sf5LqG5YyW5a2m5Y+Y5YyW77yM5pyJ5paw55qE5YiG5a2Q55Sf5oiQ44CCPC9wPg==
- 提示2:PHA+6KaB5bCG5YiG5a2Q5pys6Lqr55qE5Y+Y5YyW5LiO54mp6LSo54q25oCB55qE5pS55Y+Y5Yy65Yir5byA44CCPC9wPg==
- 答案:QQ==
PHA+5p6E5oiQ54mp6LSo55qE5YiG5a2Q5Y+R55Sf5Y+Y5YyW5Y2z54mp6LSo5Y+R55Sf5LqG5YyW5a2m5Y+Y5YyW44CCPGJyPkHjgIHmsKLmsJTlnKjmsKfmsJTkuK3nh4Png6fnlJ/miJDmsLTvvIzmsKLliIblrZDlkozmsKfliIblrZDliIbmiJDljp/lrZDvvIzljp/lrZDlj4jph43mlrDnu5PlkIjmiJDmsLTliIblrZDvvIzliIblrZDlj5HnlJ/kuoblj5jljJbvvIzmlYVB5q2j56Gu77ybPGJyPkLjgIHlhrDlnZfono3ljJbmiJDmsLTvvIzmsLTliIblrZDmnKzouqvmsqHmnInlj5HnlJ/lj5jljJbvvIzmlYVC6ZSZ6K+v77ybPGJyPkPjgIHmqJ/ohJHkuLjmlL7lnKjooaPmn5zkuK3pgJDmuJDmtojlpLHvvIzmqJ/ohJHliIblrZDmnKzouqvmsqHmnInlj5jljJbvvIzmlYVD6ZSZ6K+v77ybPGJyPkTjgIHnopjliqDng63lkI7lj5jmiJDntKvoibLokrjmsJTvvIznopjliIblrZDmnKzouqvmsqHmnInlj5jljJbvvIzmlYVE6ZSZ6K+v44CCPGJyPuaVhemAiUE8L3A+
本课配套习题挑战模式4/5
建立宏观与微观的联系是化学学科特有的思维方式。下列对于宏观现象的微观解释,错误的是
A: 水通直流电分解,是因为水分子被破坏,形成新的分子 |
B: “酒香不怕巷子深”,说明了分子在不断运动 |
C: 一氧化碳和二氧化碳具有不同的化学性质,是因为构成它们的分子不同 |
D: 20mL水与 20mL酒精混合后体积小于40mL,是因为分子数目减少 |
- 提示1:PHA+5rC05LiO6YWS57K+5re35ZCI5ZCO77yM55Sx5LqO5YiG5a2Q6Ze055qE6Ze06ZqU5L2/5b6X5oC75L2T56ev5bCP5LqO5Y6f5L2T56ev5LmL5ZKM44CCPC9wPg==
- 答案:RA==
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
本课配套习题挑战模式5/5
下图是水分子在一定条件下分解的示意图,从中获得的信息不正确的是
A: 一个水分子由二个氢原子和一个氧原子构成 |
B: 水分解后生成氢气和氧气的分子数比为2∶1 |
C: 水分解过程中,分子的种类不变 |
D: 水分解过程中,原子的数目不变 |
- 提示1:PHA+5Zyo5YyW5a2m5Y+Y5YyW5Lit77yM5YiG5a2Q5Y+R55Sf5pS55Y+Y44CC6ICM5Y6f5a2Q55qE56eN57G75ZKM5pWw55uu6YO95LiN5Y+Y44CCPC9wPg==
- 答案:Qw==
PHA+5rC05YiG6Kej6L+H56iL5Lit77yM5rC05YiG5a2Q55qE56eN57G75pS55Y+Y77yM55Sf5oiQ5rCi5YiG5a2Q5ZKM5rCn5YiG5a2Q44CC5pWFQ+mUmeivr+OAgjwvcD4=