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WorksheetsIGCSE Bonding (Double Science)
Total questions: 20
Worksheet time: 20mins
Covalent bonding occurs between...
metals
non-metals
metals and non-metals
Ionic bonding usually occurs between...
Metals
Non-metals
Metal and non-metal
What type of bond connects the hydrogen and the oxygen together in H2O?
Ionic bonds
Covalent bonds
Intermolecular bonds
Hydration bond
When you are heating up water, what bonds are you breaking in order to turn it into a gas?
Ionic bonds
Covalent bonds
Intermolecular bonds
Why is the melting point of diamond very high?
There are many ionic bonds in diamonds, which are very strong and require a lot of energy to break.
There are many covalent bonds in diamonds, which are very strong and require a lot of energy to break.
There are many intermolecular bonds in diamonds which are very strong and require a lot of energy to break.
Why is the melting point for NaCl high?
It contains a lot of ionic bonds, which are strong. Therefore, a lot of energy is require to break the bonds.
It contains a lot of covalent bonds, which are strong. Therefore, a lot of energy is require to break the bonds.
It contains a lot of intermolecular bonds, which are strong. Therefore, a lot of energy is require to break the bonds.
Which of the following will conduct electricity? Explain why.
NaCl(s) because it has free moving electrons.
NaCl(aq) because it has free moving electrons.
NaCl(l) because it has free moving ions.
Graphite because it has free moving ions.
This substance has a high melting and boiling point and cannot conduct electricity in any state. What is the identity of this substance?
NaCl
H2O
Diamond
Graphite
Draw the dot and cross diagram of HCl (You only need to draw the valence electrons)
Draw the dot and cross diagram of NaCl
What kind of structure does carbon monoxide have?
(a)
What kind of structure does graphite have?
(a)
What kind of structure does NaCl have?
(a)
H2 is an example of...
Element
Compound
Mixture
What is the chemical formula of iron(III) nitrate?
FeNO3
Fe3NO3
Fe3NO
Fe(NO3)3
What state will potassium oxide be in?
solid (s)
liquid (l)
gas (g)
aqueous (aq)
What state will hydrogen be in?
solid (s)
liquid (l)
gas (g)
aqueous (aq)
Previously, we learned that metal oxides like K2O will react with water to form alkalines (bases). What state will KOH be?
solid (s)
liquid (l)
gas (g)
aqueous (aq)
In the ionic compound MgCl2, explain what happens when an ionic bond forms.
Magnesium loses 2 electrons and chlorine gains 1 electron each. Electrons are transferred from magnesium to chlorine.
Magnesium gains 2 electrons and chlorine loses 1 electron each. Electrons are transferred from chlorine to magnesium.
Magnesium loses 1 electron and chlorine gains 1 electron each. Electrons are transferred from magnesium to chlorine.
Magnesium gains 1 electrons and chlorine loses 2 electron each. Electrons are transferred from chlorine to magnesium.
Why can graphite be used as a lubricant?
Because it has delocalized electrons and the electrons are free to move.
Because it is made of entirely of carbon-carbon bonds.
Because it has free moving ions between the layers, allowing the layers to slide.
Because the intermolecular forces between the layers are weak, allowing the layers to slide.
