Сұйылтылған қышқылдардың металдармен реакциясы Лабораториялық жұмыс №7 «Сұйылтылған тұз қышқылының мырышпен әрекеттесуі». Химия, 7 сынып, дидактикалық материал.

Тапсырма 1

(і) Берілген аппаратты сипаттап, орындарды толтырыңыз.

a) Қандай реагенттер қосылып жатыр?

1-реагент ________________________________________________________

2-реагент ________________________________________________________

b) Қандай газ түзіліп жатыр?

Газ _____________________________________________________________

c) Қандай зат құйылған?

Құйылған зат _____________________________________________________

Тапсырма 2

Суретте газдарды жинауға арналған құрылғылар берілген.

А) В) С)

(a) Сутекті алу әдіс қай суретте көрсетілген? ____________________________________________________________________

(b) Лабораторияда сутекті алу үшін қандай заттар қолдануға болады? Сәйкес реакция теңдеулерін жазыңыз.

____________________________________________________________________

(с) Сутекті анықтауға қандай тест жүргізуге болады? Сутекті анықтаудың белгісі қандай? _____________________________________________________________________

Acids and bases and metals - Test

Acids and bases and metals - Test

Начало формы

1.

What does this hazard symbol mean?

corrosive

irritant

harmful

2.

Which of these acids is most likely to be dangerous?

citric acid

carbonic acid

hydrochloric acid

3.

Which statement about bases is true?

they are all alkalis

they can neutralise acids

they are all soluble

4.

Which statement about alkalis is true?

they are all bases

they cannot neutralise acids

they are all insoluble

5.

What happens to litmus paper in acidic solutions?

red litmus turns blue

blue litmus turns red

yellow litmus turns green

6.

Universal indicator solution is usually green to begin with. What does this mean?

it is acidic

it is alkaline

it is neutral

7.

A liquid has a pH of 7.5 - what does this mean?

it is weakly acidic

it is weakly alkaline

it is neutral

8.

A liquid has a pH of 1 - what does this mean?

it must be sodium hydroxide solution

it is strongly acidic

it is weakly acidic

9.

What products are formed when a metal oxide reacts with an acid?

a salt only

a salt and water

a salt, water and carbon dioxide

10.

What products are formed when a metal carbonate reacts with an acid?

a salt only

a salt and water

a salt, water and carbon dioxide

11.

Farmers use lime to neutralise their soils. What sort of substance is lime?

a base

an acid

a sharp tasting drink

12.

Which acid could be used to make ammonium nitrate (a type of fertiliser)?

hydrochloric acid

sulfuric acid

nitric acid

13.

Which salt is made when copper oxide and sulfuric acid react together?

copper sulfate

copper sulfuroxide

copper sulfide

14.

Which gas is produced when magnesium reacts with hydrochloric acid?

carbon dioxide

oxygen

hydrogen

Конец формы

Answer:

1)1

2)3

3)2

4)1

5)2

6)2

7)2

8)2

9)2

10)3

11)1

12)3

13)1

14)3