MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Alkali Metals

State the vis...

Question

State the visible change and give equations for the action when a piece of $C a$ is added to cold water.

Open in App

Solution

Calcium reacts fairly vigorously with cold water in an exothermic reaction. Bubbles of hydrogen gas are given off and white precipitate of calcium hydroxide is formed together with an alkaline solution. Calcium hydroxide is slightly soluble.
$C a + {2 H}_{2} O \to C a {(O H)}_{2} + H_{2}$

Suggest Corrections

thumbs-up

0

Similar questions

Q. What happens when a piece of

N a

is added to cold water? Give suitable equation.

Q. Oxalic acid when added to cold water and then sodium hydroxide gives

Q. Two changes are stated below:
i. A piece of magnesium gives of bright flames when burnt.
ii. A piece of iron glows red when heated strongly.
Which of these is a physical change?

Pieces of ice added to a drink cool it much faster than ice cold water added to it because

Q. Two changes are stated below:
(i) A piece of magnesium gives of bright flames when burnt.
(ii) A piece of iron glows red when heated strongly.

Which of these is a chemical change?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Modern Periodic Table

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Standard IX Chemistry

Join BYJU'S Learning Program

CrossIcon