Write the reactions and give reasons:
Carbondioxide gas in bubbled through lime water.

Write the reactions and give reasons: Baking soda added to vinegar.

Chemical A is used for water softening to remove temporary hardness. A reacts with sodium carbonate to generate caustic soda. When carbondioxide is bubbled through A, it turns cloudy. What is the chemical formula of A?

Select correct answer and give reasons. Plants respire through

Select correct answer and give reasons. Roots respire through

If you send carbondioxide into lime water what happens?

When a green solid P was heated it turned into a black solid Q and a colourless gas X was released. On passing gas X, over heated carbon and another colourless gas Y was formed. Gas Y burned in oxygen to reform gas X. What will be be observed if gas X is bubbled into lime water ?

Ravi prepared carbondioxide using baking soda and vinegar. Carbondioxide changed lime water into milky white. Represent this experiment in a diagram with labelling.

The precipitate formed when CO_2 is passed through lime water-

How magnesium carbonate is prepared by different methods ? What happens when carbondioxide is passed through magnesium carbonate? Write any of its three important uses.

Write the reactions of F_(2) and Cl_(2) with water.