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Science
Science Related Questions
15 topics in this forum
"(i) By the transfer of electrons, illustrate the formation of bond in magnesium
By divas goyal in 23 Sep 2023 | 11:38 am
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"A metal ‘X’ combines with a non-metal ‘Y’ by the transfer of electrons to form
By divas goyal in 23 Sep 2023 | 11:38 am
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Why does calcium start floating when it reacts with water? Write the balanced chemical equation of the reaction. (b) Name two metals which do not react with water.
By divas goyal in 23 Sep 2023 | 11:37 am
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"Compare in tabular form the reactivities of the following metals with cold and hot water: (a) Sodium (b) Calcium (c) Magnesium "
By divas goyal in 23 Sep 2023 | 11:37 am
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Complete the following equation with balancing: (i) Al + HCl → (ii) Mg + HNO3 →
By divas goyal in 23 Sep 2023 | 11:37 am
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What is meant by amphoteric oxides? Choose the amphoteric oxides from the following : Na2O, ZnO, CO2, Al2O3, H2O
By divas goyal in 23 Sep 2023 | 11:37 am
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Reverse of the following chemical reaction is not possible: Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s) Justify this statement with reason
By divas goyal in 23 Sep 2023 | 11:37 am
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Give reasons: (a) Ventricles have thicker muscular walls than atria
By divas goyal in 23 Sep 2023 | 11:36 am
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List in tabular form three differences between arteries and veins
By divas goyal in 23 Sep 2023 | 11:36 am
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Explain how the translocation of materials in phloem tissue in plants is achieved by utilising energy.
By divas goyal in 23 Sep 2023 | 11:36 am
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Explain the significance of photosynthesis. Write the balanced chemical equation involved in the process.
By divas goyal in 23 Sep 2023 | 11:36 am
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(a) State the law that is followed by balancing a chemical equation. (b) Balance the following chemical equation: Na + H3O → NaOH + H2
By divas goyal in 23 Sep 2023 | 11:35 am
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Write three types of blood vessels. Give one important feature of each
By divas goyal in 23 Sep 2023 | 11:29 am
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