如图中,B、D、E、F、G是氧化物,F、K是氢化物,C、H是日常生活中最常见的金

题型:填空题

问题:

如图中,B、D、E、F、G是氧化物,F、K是氢化物,C、H是日常生活中最常见的金属单质,J是气态非金属单质.O是白色沉淀且B、H、L、M、N、O中含有同种元素,I是基础化学工业的重要产品(图中部分反应物和生成物没有列出).

请按要求回答:

(1)写出G、L的化学式G:______,L:______.

(2)反应②的离子方程式______.

(3)反应①是分解反应,反应中生成的B、D、E、F的物质的量之比为1:1:1:14,则该反应的化学方程式为______.

(4)将A直接溶于水(未加稀硫酸酸化)得到的溶液,敞口久置,变质过程中涉及的离子方程式为______.

考点:无机推断
题型:填空题
Being fit is a way of saying someone eats well, takes a lot of exercise, and has a healthy weight(体重). If you're fit, your body works well, feels good, and can do all the things you want to do. To be fit, please follow the three rules:
Eat different kinds of food, especially (尤其) fruit and vegetables
You may have a favorite food, but you'd better eat different kinds of food. Your body needs different nutrients(营养).
Drink Milk Often
When you want something to drink, drink some water and milk. It is good for your bones.  If you are younger than 9 years old, drink 2 cups of milk a day. It's helpful to have 100% juice, too.
Be Active
Not everyone loves basketball or football. Maybe you like dancing or swimming. That's OK. Any outdoor activities are good for you if you like. Just find ways to be active every day.
阅读短文,完成下列任务。
任务一根据文章内容总结如何做一个健康的孩子,并完成表格。
How to be a healthy kid
Food
Don’t just eat your   小题1: food. Try to eat different kinds of food.
Drink
Drink enough小题2: and milk every day.
Drink 100%   小题3: every day.
Activities
Do some activities every day, for example, playing ball games,   小题4: or swimming.
任务二 请写一条你认为可以使你的身体健康的建议。
小题5:                                                                      
题型:填空题

只列综合算式和方程,不计算.

(1)一个圆锥体,底面半径是6cm,高15cm,求它的体积.

(2)小红从家到学校,去时每分钟走60米,走了30分钟.回来时每分钟走45米,小红的平均速度是多少?

(3)甲乙丙三个数的平均数是60,甲乙丙的比是3:2:1,求甲是多少?

题型:填空题

黄芩切面具有的特征是()。

A、黄色,中间有红色圆心,有的中央呈暗棕色或棕褐色枯朽

B、皮部黄白色,木部淡黄色,有放射状纹理及裂隙,形成层环纹明显

C、淡黄白色,可见橘红色油点,中央有放射状纹理

D、黄棕或黄褐色,具锦纹或星点

题型:填空题

在会计实务中,原始凭证按填制手续及内容不同,可分为( )。

A.外来原始凭证和自制原始凭证

B.收款凭证、付款凭证和转账凭证

C.一次凭证、累计凭证和汇总凭证

D.通用凭证和专用凭证

题型:填空题

希波克拉底关于心理障碍的体液理沦是一种()

A.超自然的观点

B.心理学的观点

C.生物学的观点

D.都不是

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