What is Meant by H20 and 3h2o - Chemistry

What is meant by H₂0 and 3H₂O

One Line Answer

H₂0 represents one molecule of water. 3H₂0 represents 3 molecules of water.

shaalaa.com

Is there an error in this question or solution?

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

Chapter 4 Elements, Compounds, Symbols And Formulae
Exercise 2 | Q 5.2

What are the different types of mixtures ?

Give one use of the following substance:
Coal

Indicate whether the following statement is true or false:
Ozone is a triatomic molecule

Tick (√) the correct alternative from the choice given for the following statement.
Gold is used to make jewellery because

Tick (√) the correct alternative from the choice given for the following statement

A metal which is brittle

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:

Select the correct answer from A, B, C, D & E for the statement given below :

A noble gas.

There are ______ number of known elements.

Oxygen is very essential for us to live. It forms 21% of air by volume. Is it an element or compound?