Advertisements
Advertisements
Question
Define the term ‘compound’. In the compound carbon dioxide – the elements carbon & oxygen are combined in a fixed ratio. Explain.
Advertisements
Solution
A compound is a pure substance made up of two or more different elements [atoms] combined chemically in a fixed proportion.
Since one carbon atom and two oxygen atoms combine to generate one carbon dioxide molecule (CO2), we refer to the combination of carbon and oxygen as occurring in a fixed ratio of 1 : 2 to form carbon dioxide.
APPEARS IN
RELATED QUESTIONS
Define mixture.
Write true or false
A heterogeneous mixture has a uniform composition throughout the mixture
What is meant by 2H and H2
What is meant by H20 and 3H2O
Indicate whether the following statement is true or false:
All elements are artificially prepared
Indicate whether the following statement is true or false:
Molecules can exist independently.
Complete the statement given below by filling in the blanks with the correct words.
From the elements – He, Br, Pt, and O; the element which is metallic is ____, an inert element is ____, forms a triatomic molecule is ____, is liquid at room temperature is_ ___.
Non-metal conducting electricity :______ :: Metal conducting electricity : Copper
Differentiate between elements and compounds.
Give an account of elements known to us.
