Classification of Elements and Periodicity Questions

Inorganic Chemistry

Classification of Elements and Periodicity Solutions

Enter the symbol for the element being described. Enter only the elemental symbol, not the name. Note: If there is more than one possible correct answer, full credit will be given for any you choose. Element with the condensed electron configuration {Kr} 5s^24d^105p^1 : In.

Inorganic Chemistry

Classification of Elements and Periodicity Solutions

Enter the symbol for the element being described. Enter only the elemental symbol, not the name. Note: If there is more than one possible correct answer, full credit will be given for any you choose. Element with the valence electron configuration 3s^23p^5: {Ne}3s^23p^5

Inorganic Chemistry

Classification of Elements and Periodicity Solutions

Enter the symbol for the element being described. Enter only the elemental symbol, not the name. Note: If there is more than one possible correct answer, full credit will be given for any you choose. Element with 4 valence electrons in the 5th energy level:

Inorganic Chemistry

Classification of Elements and Periodicity Solutions

Which of the following describes the element F? (A) belongs to a group consisting entirely of gases (B) is one of the group of the least reactive elements (C) forms a basic solution in water (D) is very reactive as a metal (E) consists of diatomic molecules in elemental form (F) reacts vigorously with alkali metals to form salts

Inorganic Chemistry

Classification of Elements and Periodicity Solutions

Which of the following describes the element Ba. a. forms a basic solution in water b. consists of diatomic molecules in elemental form c. is one of the group of the least reactive elements d. is found in nature only combined with other elements e. is very reactive as a metal f. reacts vigorously with alkali metals to form salts

Inorganic Chemistry

Classification of Elements and Periodicity Solutions

Designate the conjugate partners on the right side of this reaction: NH₄⁺(aq) + F‾(ag) → NH₃(aq) + HF(ag) a. conjugate acid: HF(aq) b. conjugate acid: NH₃(aq) c. conjugate base: HF(aq) d. conjugate base: NH₃(aq)

Inorganic Chemistry

Classification of Elements and Periodicity Solutions

1. The element aluminum forms a_______ with the charge________ . 2. The symbol for this ion is _______ and the name is _________ ion. 3. The number of electrons in this ion is _______.

Inorganic Chemistry

Classification of Elements and Periodicity Solutions

Consider the following four cases i. A chemical process in which heat is absorbed. ii. A change in which q = 30 J, w = 44 J. iii A process in which a system does work on its surroundings with no change in q. iv. A process in which work is done on a system and an equal amount of heat is withdrawn. In how many of these cases does the internal energy of the system decrease? O 0 O 1 O 2 O 3 O 4

Inorganic Chemistry

Classification of Elements and Periodicity Solutions

A 1.76 gram sample of an unknown gas is found to occupy a volume of 1.34 L at a pressure of 716 mm Hg and a temperature of 45 °C. The molar mass of the unknown gas is -------- g/mol.

Inorganic Chemistry

Classification of Elements and Periodicity Solutions

Which of the following order is correct O NaCl > KCl > RbCl > CsCl > LiCl (Melting point order) ○ BeF₂ < MgF₂ < CaF₂ < SrF₂ < BaF₂ (solubility order) O O₂ > N₂ > N > O (ionization energy) O Total number of bond angle greater than 109°28' in POF3 and PF3 is respectively 0 and 3.

Inorganic Chemistry

Classification of Elements and Periodicity Solutions

Which experimental conditions would maximize the yield of choloroethane and minimize the production of polychlorinated products during the free radical chlorination of ethane? A. equimolar amounts of chlorine & ethane B. use an excess of chlorine C. excess of ethane D. excess of chlorine & long reaction time E. equimolar amounts of chlorine & ethane and high reaction temperature

Inorganic Chemistry

Classification of Elements and Periodicity Solutions

A chemist mixes 22.6 g of ethanol with 7.47 g of acetone and 89.1 g of 1-bromobutane. Calculate the percent by mass of each component of this solution. Round each of your answers to 3 significant digits. component mass percent ethanol ? acetone ? 1-bromobutane ?