What is Meant by 2h and H2

What is meant by 2H and H₂

एका वाक्यात उत्तर

2H is two atoms of hydrogen. H₂ is one molecule of hydrogen gas

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पाठ 4: Elements, Compounds, Symbols And Formulae - Exercise 2

पाठ 4 Elements, Compounds, Symbols And Formulae
Exercise 2 | Q 5.1

What is meant by H₂0 and 3H₂O

Answer the following question:
Give the advantages of using symbols instead of names of elements or compounds.

Give the name of the radical - SO₄

Complete the statement with the correct words.
__________ are chemicals formed on reaction of a base with an _____ giving salt and water.

Select the correct answer from the choice given below.
An element which is a poor conductor of heat

Write the names of elements from the following symbol:

Differentiate metals and non-metals.

Assertion: Air is a mixture of elements only.

Reason: Only nitrogen, oxygen and neon gases exist in air.

Water contains _____ and _____ element.

Match the following.