. There are two different common crystalline forms of carbondiamond and graphite. A less common form called fullerene, C60, also exists. Different
... [Show More] forms of the same element in the same physical state are calledHow many atoms are in a sulfuric acid molecule?If a sample of butane, C4H10, contains a total of 8.0 103 atoms of carbon, how many molecules of butane are in the sample?Name the molecular compound, HNO3.Name the molecular compound, SO3. a. sulfur oxide b. sulfurous acid c. sulfur trioxide d. sulfuric acid e. none of theseWhich formula / name pair does not match? a. HNO3 / nitric acid, used to produce explosives b. CH3OH / methyl alcohol, wood alcohol c. CH3CH2OH / ethyl alcohol, alcohol in wine d. CHCl3 / acetic acid, found in vinegar e. CH3CH2OCH2CH3 / diethyl ether, an anestheticName the molecular compound, CH3COCH3. a. acetone b. ethanol c. diethyl ether d. propane e. ethyl alcoholWhat is the molecular formula for ethanol? a. CH3COOH b. CH3COCH3 c. CH3CH2OCH2CH3 d. CH3CH2CO2H e. CH3CH2OHButane, a highly combustible hydrocarbon found in disposable lighters, has the chemical formula: a. CO2 b. C4H8 c. C4H10 d. C3H8 e. CH3OCH3What is the molecular formula for hydrogen chloride? a. HCl b. HClO c. HClO2 d. HClO3 e. HClO4A compound contains only calcium and fluorine. A sample of the compound is determined to contain 2.00 g of calcium and 1.90 g of fluorine. According to the Law of Definite Proportions, how much calcium should another sample of this compound contain if it contains 2.85 g of fluorine?A compound contains only magnesium and oxygen. A sample of the compound is determined to contain 3.50 g of magnesium and 2.30 g of oxygen. According to the Law of Definite Proportions, how much magnesium should another sample of this compound contain if it contains 6.91 g of oxygen?. Which of the following is not the name of a cation? a. sodium b. iron (III) c. magnesium d. sulfide e. ammoniumWhich of the following statements is incorrect? a. Potassium chloride forms molecules that consist of one K+ ion and one Cl ion. b. Ions that possess a positive charge are called cations. c. Polyatomic ions are groups of atoms that have an electric charge. d. It is acceptable to use formula unit to refer to either an ionic compound or a molecular compound. e. Ions that possess a negative charge are called anions.What is the correct classification for OCl ? a. polyatomic molecule b. monatomic cation c. polyatomic cation d. polyatomic anion e. monatomic anionWhat is the correct formula for the carbonate ion? a. CH3COO b. Cl c. CO2 2 d. CO3 2 e. (COO )2Each response below lists an ion by name and by chemical symbol or formula. Also each ion is classified as monatomic or polyatomic and as a cation or anion. Which response contains an error?Each response below lists an ion by name and by chemical symbol or formula. Also each ion is classified as monatomic or polyatomic and as a cation or anion. Which response contains an errorWhat is the formula for ammonium fluoride? a. AlF b. Al2F3 c. NH3F d. NH4F2 e. NH4FWhat is the formula for manganese(III) oxide? a. MgO b. MnO c. MnO4 d. Mg2O3 e. Mn2OWhat is the formula for aluminum oxide? a. Al2O3 b. Ag2O3 c. AlO3 d. AlO e. AlO2 [Show Less]