The newest 16 of 15 written questions. Open one to see it on the real paper.
State the type of chemical bonding in a molecule of methane.
See it on the paper →Carbon dioxide is one of the products of the reaction. State the names of the other two products of the reaction.
See it on the paper →1.00 g of calcium carbonate makes 240 cm of carbon dioxide gas at room temperature and pressure. mass of calcium carbonate = g Calculate the mass of calcium carbonate needed to make 360 cm 3 of carbon dioxide gas at room temperature and pressure.
See it on the paper →State the type of chemical bonding in a chlorine molecule.
See it on the paper →Hydrogen chloride gas is a covalent compound. Explain why hydrogen chloride gas is a covalent compound and not an ionic compound.
See it on the paper →State the name of the type of bonding in a molecule of methane.
See it on the paper →Name the type of chemical bonding in a molecule of water.
See it on the paper →Fig. 5.1 shows the bonding in a molecule of water, H 2 O. O H H Fig. 5.1 State the name of the type of bonding in a molecule of water.
Covalent bonding was quite well known as the type of bonding in a chlorine molecule. Ionic bonding was sometimes suggested.
— Examiner report, February/March 2025, 0654/32 Q8(a)(i) (Cambridge)
Covalent bonding was well known. Ionic bonding was a popular incorrect answer.
— Examiner report, February/March 2024, 0654/32 Q8(a)(ii) (Cambridge)
Nearly all candidates were able to correctly state covalent bonding.
— Examiner report, February/March 2023, 0654/42 Q5(c)(i) (Cambridge)
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Carbon dioxide gas is also made. Explain why the bonds between the carbon atoms and the oxygen atoms in carbon dioxide are covalent.
See it on the paper →State the name of this type of bonding that holds the atoms together in carbon dioxide.
See it on the paper →State the type of bond made when chlorine reacts with hydrogen to make the gas hydrogen chloride, HCl. Explain your answer. type of bond explanation
See it on the paper →State why hydrogen chloride is a covalent compound and not an ionic compound.
See it on the paper →Which row describes a covalent compound?
See it on the paper →Fig. 8.2 is a dot-and-cross diagram of a water molecule. O X X H H Fig. 8.2 State the type of chemical bonding in a water molecule.
See it on the paper →In which molecule are all the outer electrons of the atoms used in covalent bonds?
See it on the paper →State the type of bond in the H 2 molecule.
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