Chemistry Questions and Answers (Q&A)

Water is a solvent. It has numerous properties that set it apart from other solvents. The basic one is its property of surrounding different ions so that molecules break into separate charged entities within it. However, this property of breaking up molecules into ions is also dependent on the...Read More

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The correct answer to this question is B, square planar. While IF4- has an octahedral electron geometry, the molecular geometry of IF4- takes on a square planar shape. The cause of this is that iodine carries two lone pairs, with one above the plane on the x-axis and one below the plane on the...Read More

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The correct answer to this question is D, potassium oxide. This is the correct name because Potassium (the K) is a metal with one valence electron while Oxygen (the O) is a nonmetal with two valence electrons. Thus, K2O is the ionic compound that is composed of oxygen and potassium. K2O i...Read More

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The correct answer to this question is A, Fe2(SO4)3 which is the chemical formula. The IUPAC name is iron(III) sulfate, which is determined by the set of rules that provide compounds with their name developed by the International Union of Pure and Applied Chemistry. Fe2(SO4)3 is the formula for...Read More

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The correct answer to this question is C, CuS. This is the chemical formula, whereas Copper Suflide is the IUPAC name. The IUPAC name is the set of rules that provide compounds with their name, set by the International Union of Pure and Applied Chemistry. Such names are published in the...Read More

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The correct answer to this question is C, phosphorus pentachloride. The P stands for Phosphorus, while the Cl represents chloride. The 5 means that there are 5 Cl atoms bonded to the Phosphorus atom, which represents the prefix Pentain the Pentachloride. The naming conventions for a molecular...Read More

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The correct answer to this question is B, Iron(II) oxide. Iron(II) oxide is also know as ferrous oxide following the older system of naming conventons. It is an inorganic compound. Since Oxygen has an oxidation number of -2, Iron must have a +2 charge. The roman numerals are used to indic...Read More

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The correct answer to this question is B. Composition stoichiometry refers to the atomic makeup of a molecule, the quantitative relationships among elements in compounds, and is the study of the mass relationships among reactants and products in a chemical reaction. Composition stoich...Read More

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To create a balanced equation when aluminium reacts with copper (II) sulphate, provide the correct coefficient for each compound. Be sure to count all atoms on each side of the chemical equation.
Of all the options above only option listed above, only option B is correct.
2AL +...
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The correct answer to this question is D; the empirical formula for a compound that is 43.6% phosphorus and 56.4% oxygen is P2O5. In the formula, the P stands for phosphorus and the O standards for oxygen, so there are 2 phosphorus (P) atoms and 5 oxygen (O) atoms in the compound. The ato...Read More

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