【題目】下列常見(jiàn)的物質(zhì)中，不代表同一種物質(zhì)的是( )。

A．氯化鈉、鹽 B．氫氧化鈉、苛性鈉

C．碳酸鈉、純堿 D．碳酸氫鈉、小蘇打

【答案】A

【解析】

試題分析：氯化鈉的俗稱為食鹽，選項(xiàng)中的鹽是指一類物質(zhì)。二者不代表同一種物質(zhì)

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：初中地理 來(lái)源： 題型：

【題目】下列關(guān)于空氣成分的敘述正確的是( )。

A．空氣中氮?dú)夂脱鯕獾捏w積比約為4∶1

B．空氣的成分按質(zhì)量計(jì)算，氮?dú)庹?/span>78%，氧氣占21%

C．從液態(tài)空氣中能分離出氮?dú)�，不能分離出氧氣和稀有氣體

D．空氣中含量最多且性質(zhì)又不活潑的是稀有氣體

查看答案和解析>>

科目：初中地理 來(lái)源： 題型：

【題目】下列關(guān)于溶液的說(shuō)法正確的是( )。

A．溶液一定是無(wú)色、透明的混合物

B．溶液加水稀釋前后，溶質(zhì)的質(zhì)量一定不變

C．溶劑量不變時(shí)，加入的溶質(zhì)越多，溶液質(zhì)量一定越大

D．物質(zhì)溶于水形成溶液時(shí)，溶液溫度一定不變

查看答案和解析>>

科目：初中地理 來(lái)源： 題型：

【題目】D

Jack likes eggs, bananas and apples. So every day, he has two eggs, one apple, a cup of milk and some bread for breakfast. For lunch, he has bananas, some chicken and vegetables. And for dinner, he has tomatoes, French fries and ice cream.

His sister likes dessert, oranges and apples. But she often has some hamburgers, one apple and bread for her breakfast. She likes tomatoes, salad and some fish for lunch. For dinner, she likes strawberries and some chicken.

【1】 What does Jack have for breakfast?

A. Some hamburgers, one apple and bread.

B. Bananas, one egg and a cup of milk.

C. Two eggs, one apple and a cup of milk.

D. One apple, two eggs, some bread and a cup of milk.

【2】_________ likes dessert, oranges and apples.

A. Jack B. Jack’s mother

C. Jack’s father D. Jack’s sister

【3】Jack has _________ for his dinner.

A. tomatoes B. French fries and ice cream

C. bananas and some chicken D. both A and B

【4】Jack has some chicken _________, but his sister has some chicken _________.

A. for breakfast; for dinner B. for lunch; for dinner

C. for dinner; for lunch D. for dinner; for dinner

【5】Which of the following is right?

A. Jack likes dessert, but he doesn’t like apples.

B. Jack likes apples, and his sister likes them, too.

C. Jack has two eggs for breakfast, but his sister has one egg.

D. Jack has bananas for lunch, and his sister has apples for lunch.

查看答案和解析>>

科目：初中地理 來(lái)源： 題型：

【題目】生活中常見(jiàn)的下列物質(zhì)，不屬于溶液的是( )。

A．糖水 B．蒸餾水

C．碘酒 D．汽水

查看答案和解析>>

科目：初中地理 來(lái)源： 題型：

【題目】 —You look very cool today, Simon.

—__________

A. Really? Thank you. B. Oh, I don’t think so.

C. No, I’m not cool at all. D. The same to you.

查看答案和解析>>

科目：初中地理 來(lái)源： 題型：

【題目】鐵生銹的條件是_____________并存，鐵銹的主要成分是_________，鐵銹是一種混合物，鐵生就后變得疏松多孔，因而不能阻止鐵繼續(xù)被銹蝕，破壞鐵生銹的條件就能防止鐵生銹。

查看答案和解析>>

科目：初中地理 來(lái)源： 題型：

【題目】下列有關(guān)金屬材料的敘述錯(cuò)誤的是（ ）

A．回收利用廢舊電池中的鉛、汞等可減少對(duì)環(huán)境的污染

B．鋁塊能制成鋁箔是利用了鋁的延展性

C．鋁比鋼鐵中的鐵活潑，因而鋁的抗腐蝕性能比鐵差

D．在鐵制品表面刷漆或鍍耐腐蝕金屬都可以防止鐵制品銹蝕

查看答案和解析>>

科目：初中地理 來(lái)源： 題型：

【題目】下列有關(guān)洗滌的說(shuō)法中錯(cuò)誤的是（ ）

A．用汽油溶解衣物上的油漬

B．用洗潔精乳化餐具上的油污

C．用食醋洗去熱水瓶中的水垢

D．用熱的純堿溶液洗去菜刀上的鐵銹

查看答案和解析>>

同步練習(xí)冊(cè)答案