CHEM 100 EXAM 2 Questions And Answers Solved Graded A+

The mass of the particle doesn't weigh enough to worry about. - correct answers Electron The mass of the particles is 1 a.m.u. - correct answers Proton This particle is located outside the nucleus - correct answers Electron This particle is found only in the nucleus - correct answers Proton and Neutron This particle has a charge of -1 - correct answers Electron This particle has no charge - correct answers Neutron This particle has a charge of +1 - correct answers Proton The symbol of this particle is p+ or H¹ - correct answers Proton Zinc-64 contains the following number of shells - correct answers 4 Zinc-64 shell #3 contains the following number of electrons - correct answers 18 Zinc-64 would have the following # of neutrons (in the nucleus) - correct answers 34 Zinc-64 would have the following # of electrons (total) - correct answers 30 Zinc-64 would have the following # of protons (in the nucleus) - correct answers 30 What is the atomic number of element nitrogen - correct answers 7 What is mass number of element nitrogen-15 - correct answers 15 Which grouping family has 4 valence electrons? - correct answers carbon group IV what type of compound is N₂O₃ - correct answers Covalent what type of compound is NH₄C₂H₃O₂ - correct answers Salt what type of compound is SiS₂ - correct answers Salt what type of compound is NaHSO₄ - correct answers Salt what type of compound is PbI₂ - correct answers Salt what type of compound is H₂SO₃ - correct answers Acid what type of compound is Al(OH)₃ - correct answers Base what type of compound is Co₂S₃ - correct answers Salt what type of compound is FrOh - correct answers Base what type of compound is NH₄HSO₃ - correct answers Salt what type of compound is HI - correct answers Acid what type of compound is SnI₄ - correct answers Salt what type of compound is RbOH - correct answers Base what type of compound is HClO₃ - correct answers Acid what is the name of the following compound, SiS₂ - correct answers Silicon Disulfide What is the name of the following compound, N₂O₃ - correct answers Dinitrogen Trioxide What is the name of the following compound, LiHCO₃ - correct answers Lithium Bicarbonate What is the name of the following compound, NH₄C₂H₃O₂ - correct answers Ammonium Acetate What is the formula of the following compound, carbon tetrachloride - correct answers [C⁴⁻] + [Cl⁻] → CCl₄ What is the formula of the following compound, potassium bisulfite - correct answers [K⁺] + [HSO₃⁻] → KHSO₃ What is the formula of the following compound, Tin (II) hydroxide - correct answers [Sn²⁺] + [OH⁻] → Sn(OH)₂ What is the formula of the following compound, nickel (II) chlorate - correct answers [Ni²⁺] + [ClO₃⁻] → Ni(ClO₃)₂ How many total ions are there in NaHSO₄ - correct answers [1∙Na]+[1∙S]+[4∙O] ∴ 6 How many carbon ions are there in C₂Br₆ - correct answers [2∙C] ∴ 2 How many acetate ions are there in NH₄C₂H₃O₂ - correct answers [1∙C₂H₃O₂] ∴ 1 How many hydroxide are there in (NH₄)₂S - correct answers [OH⁻∙0] ∴ 0 The molecular mass (mass of 1 molecule) of CO is - correct answers [C⇌12.011 amu] + [O⇌15.999amu] ∴ 28 amu The molar mass (mass of 1 mole) of CO is - correct answers 28.01g/mole The molar mass of Al(OH)₃ is - correct answers 78g/mole The molar mass of NH₄HCO₃ is - correct answers 79.045g/mole The mass (in grams) of 3.0 moles of zinc is - correct answers 3.0 mole (Zn) ∙ 65.38g/1 mole (Zn) = 196.2g (Zn) How many moles of NO₂ are there in 9.2 grams of NO₂ - correct answers 9.2g (NO₂) ∙ 1 mole/46.0065g (NO₂) = 0.2 mole (NO₂) What is the mass (in grams) of 15.0 moles of H₂O - correct answers 15.0 mole (H₂O) ∙ 18.01g/1mole (H₂O) = 270.2g (H₂O) How many moles of oxygen are there in 8g - correct answers 8g (O) ∙ 1mole/15.999g (O) = 0.5mole (O) The measure of an atom's attraction for the electron in a bond is called - correct answers electronegativity On the periodic chart, the electronegativity _________ as you proceed from left to right - correct answers Increase Which of the following elements has the greater electron