Write the molecular formulae for the following compounds
(a) Copper (II) bromide
(b) Aluminium (III) nitrate
(c) Calcium (II) phosphate
(d) Iron (III) sulphide
(e) Mercury (II) chloride
(f) Magnesium (II) acetate
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Write the formulae for the following compounds:
(a) Mercury (II) chloride: HgCl2 (b) Nickel (II) sulphate: NiSO4 (c) Tin (IV) oxide: SnO2 (d) Thallium (I) sulphate: Tl2SO4 (e) Iron (III) sulphate: Fe2(SO4)3 (f) Chromium (III) oxide: Cr2O3
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Bone matrix is rich in (a) fluoride and calcium (b) calcium and phosphorus (c) calcium and potassium (d) phosphorus and potassium
(b) calcium and phosphorus
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Write the chemical formula of the following: (a) Magnesium chloride (b) Calcium oxide (c) Copper nitrate (d) Aluminium chloride (e) Calcium carbonate
(a) Magnesium chloride →MgCl2 (b) Calcium oxide →CaO (c) Copper nitrate →Cu(NO3)2 (d) Aluminium chloride →AlCl3 (e) Calcium carbonate →CaCO3
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Write the molecular formulae of all the compounds that can be formed by the combination of following ions
CuCl2/ CuSO4 / Cu3 (PO4 ) 2 NaCl/ Na2SO4/ Na3 PO4 FeCl3/ Fe2 (SO4)3 / FePO4
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Give the formulae of the compounds formed from the following sets of elements (a) Calcium and fluorine
(a) CaF2 (e) Na2O (b) H2S (f) CO, CO2 (c) NH3 (d) CCl4
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Write the formulae for the following and calculate the molecular mass for each one of them.
(a) KOH (39 +16+1) = 56 g mol–1 (b) NaHCO3 23 + 1 + 12 + (3 × 16) = 84 g mol–1 (c) CaCO3 40 + 12 + (3 × 16) = 100 g...
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Marble contains ,(A) calcium hydroxide (B) calcium chloride (C) calcium carbonate (D) calcium oxide
(C) calcium carbonate Marble contains calcium carbonate and its chemical formula is CaCO3.
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On heating blue coloured powder of copper (II) nitrate in a boiling tube, copper oxide (black), oxygen gas and brown gas (X) is formed.
(a) 2Cu(NO3)2 → 2CuO+ 4NO2+O2 (b) The brown gas 'X' has to be nitrogen dioxide. (c) This type of reaction falls under the category of Decomposition reactions. (d) The pH of the aqueous...
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What are covalent compounds ? How are they different from ionic compounds ? List any two properties of covalent compounds.
The compounds that are formed due to sharing of electrons between. two atoms/ compounds having covalent bonds. Ionic compounds are formed due to a transfer of electrons from one atom to...
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Which among the following will be named as dibromidobis (ethylene diamine) chromium(III bromide?
The correct answer is (a)
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