Question

8. Write the balanced chemical equations of the following word equations.
(a) Sodium hydroxide + sulphuric acid sodium sulphate + water
(b) Potassium bicarbonate + sulphuric acid → potassium sulphate + carbon dioxide + water
(c) Iron + sulphuric acid → ferrous sulphate + hydrogen
(d) Chlorine + sulphur dioxide + water → sulphuric acid + hydrogen chloride
(e) Silver nitrate → silver + nitrogen dioxide + oxygen
(1) Copper + nitric acid → copper nitrate + nitric oxide + water
(g) Ammonia + oxygen → nitric oxide + water
(h) Barium chloride + sulphuric acid + barium sulphate + hydrochloric acid
(1) Zinc sulphide + oxygen — zinc oxide + sulphur dioxide
(1) Aluminium carbide + water → aluminium hydroxide + methane
(k) Iron pyrites (FeS2) + oxygen → ferric oxide + sulphur dioxide
(1) Potassium permanganate + hydrochloric acid → potassium chloride + manganese chloride + chlorine + water
(m) Aluminium sulphate + sodium hydroxide → sodium sulphate + sodium meta aluminate + water
(n) Aluminium + sodium hydroxide + water → sodium meta aluminate + hydrogen
(0) Potassium dichromate + sulphuric acid → potassium sulphate + chromium sulphate + water + oxygen
(p) Potassium dichromate + hydrochloric acid → potassium chloride + chromium chloride + water + chlorine
(g) Sulphur + nitric acid sulphuric acid + nitrogen dioxide + water
(r) Sodium chloride + manganese dioxide + sulphuric acid → sodium hydrogen sulphate
+ manganese sulphate + water + chlorine​

Answer 1

Answer:

A. multiple choice questions.

1._____are the ways to produce the data stored in databases and tables in a printed form.

(a) Forms

(b) Queries

(c) Reports

2. By right clicking on an empty area of the form, you can change the

of the form

(a) Element lengths

(b) Element heights

(c) Background

3. Can you enter a whole new record into the table using forms?

(a) Yes

(b) No

(c) It depends

Answer the following questions.

1. What are the steps to increase the height or width of a label in Base?

2. How can you delete a record from a table using form?

3. How can you change the background of a form in Base?

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