Question

Answer the following questions:
.i. How are a molecule of hydrogen and a molecule of oxygen similar?
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ii. State one way in which molecule of hydrogen and molecule of oxygen differ.
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iii. State two ways in which a molecule of water differs from a molecule of hydrogen.
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iv. Work out the formula of each of the following substances from the composition of the molecules.
a) Six carbon atoms and 14 hydrogen atoms ____________________
b) Two carbon atoms, four hydrogen atoms and two oxygen atoms ____________________
c) One carbon atom, three hydrogen atoms and one chlorine atom ____________________

a) What atoms do the ‘C’ and ‘Cl’ represent?
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b) State the number of each type of atoms present in the molecule.
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c) What is the formula of the molecule?
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d) Is the substance an element or a compound?
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Answer 1

Answer:

I.Both hydrogen and oxygen molecules are made up of a fixed number of atoms which are joined together by covalent bonds. Both molecules are diatomic, which implies that each molecule is made up of two atoms joined together by a covalent bond. ... Both molecules are non-metals and are colourless gases at room temperature.

I.Both hydrogen and oxygen molecules are made up of a fixed number of atoms which are joined together by covalent bonds. Both molecules are diatomic, which implies that each molecule is made up of two atoms joined together by a covalent bond. ... Both molecules are non-metals and are colourless gases at room temperature.4.a) Cl′ represents Chloride atom, ′Cl2′ represents Chlorine molecule.

I.Both hydrogen and oxygen molecules are made up of a fixed number of atoms which are joined together by covalent bonds. Both molecules are diatomic, which implies that each molecule is made up of two atoms joined together by a covalent bond. ... Both molecules are non-metals and are colourless gases at room temperature.4.a) Cl′ represents Chloride atom, ′Cl2′ represents Chlorine molecule. b) For example, most samples of the elements hydrogen, oxygen, and nitrogen are composed of molecules that contain two atoms each (called diatomic molecules) and thus have the molecular formulas H2, O2, and N2, respectively.

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