7. The diagram below shows the atoms and molecules of some gases which can be found in
air:
a. Identify the gases which exist as atoms.
b. Identify the gases which exist as molecules of elements and state how many atoms make
up each molecule for each gas.
C. Identify the gases which exist as molecules of compounds and state the types and number
of atoms which make up each molecule of the gas.
Answers
Answer:
The different types of gases which can be found in the air and are given in the attachment of your question are :
- Carbon dioxide
- Methane
- Hydrogen
- Oxygen
- Nitrogen
- Argon
- Xenon
- Neon
- Krypton
a) The gases which exist as atoms are :
- Argon
- Xenon
- Neon
- Krypton
b) The gases which exist as molecules of elements are :
- Nitrogen (2 atoms)
- Oxygen (2 atoms)
- Hydrogen (2 atoms)
All the three exist in molecules of elements which two atoms each to make up a molecule.
c) The gases which exist at molecules of compounds are :
- Methane
- Carbon dioxide
Carbon the oxide is made up of two oxygen atoms and one carbon atom.
Methane is made up of for four hydrogen atoms and one carbon atom.
What are atoms, elements and compounds ?
An atom is the smallest entity of a matter. (There are more smallest particles than an atom like electrons, neutrons, etc.).
An element is the combination of of only one type of atoms.
A compound is a combination of two or more atoms of different elements in a definite ratio.
Explanation:
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