S Block - Group 1 Questions and Answers

Hunter and Tyler are brothers in their thirties. They had a falling out last year because Tyler felt that Hunter was rude to his wife. They no longer speak to one another as a result of the conflict. What type of adult sibling relationship do Hunter and Tyler have? hostile competitive supportive longing apathetic

Copper(II) phthalocyanine (Cu(C32H16N3)) is produced by the cyclotetramerization of phthalonitrile (CsH4N2) according to the following reaction: C8H4N2(l) + CuCl2(s)→ Cu(C32H16N8)(s) + Cl2(g) How many grams of copper(II) phthalocyanine would be produced by the complete cyclotetramerization of 6.790 moles of phthalonitrile in the presence of excess copper(II) chloride?

Which of the following set of quantum numbers (ordered n, l, me, m.) are possible for an electron in an atom? Check all that apply. 5, 3, -3, 1/2 2, 1, 0, -1 3, 2, 2, -1/2 2, 2, 2, 1/2 4, 2, 3, -1/2 3, 1, -2, -1/2 -1, 0, 0, -1/2 5, 3, 0, 1/2

An electron resides in a 2p orbital. Which of the following statements is true? It has a charge equal to a proton, p The electron is in subshell = 2 The electron is in an orbital with a principal quantum number = 2 The electron is in the lowest energy subshell. The electron is in the highest energy subshell.

Consider the following reaction: 2 KCIO3(s) -> 2 KCI (s) + 3 O2 (g) For this reaction, the oxygen gas produced is collected over water at 27.0 °C in a 3.44 L vessel at a total pressure of 750.0 torr. How many grams of KCIO3 were consumed in the reaction? The vapor pressure of water at 27.0 °C is 26.0 torr. R = 0.08206 L atm/mol K Do NOT include units in your answer. If you round during your calculations make sure to keep at least 3 decimal places. Report your answer to one (1) decimal place.

A chemistry student weighs out 0.0825 g of hypobromous acid (HBrO) into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1500 M NaOH solution. Calculate the volume of NaOH solution the student will need to add to reach the equivalence point. Round your answer to 3 significant digits.

A chemist makes 430. mL of silver nitrate (AgNO3) working solution by adding distilled water to 170. mL of a 5.01 M stock solution of silver nitrate in water. Calculate the concentration of the chemist's working solution. Round your answer to 3 significant digits.

In a car engine, gasoline (represented by C8H18) does not burn completely, and some CO, a toxic pollutant, forms along with CO₂ and H2₂O. If 5.0% of the gasoline forms CO: (a) What is the ratio of CO₂ to CO molecules in the exhaust? (b) What is the mass ratio of CO₂ to CO? (c) What percentage of the gasoline must form CO for the mass ratio of CO₂ to CO to be exactly 1/1?

If the temperature of a bowl of ice cream increases from -10°C to 25°C, what is the increase in temperature in units of degrees Celsius and Kelvin? 15°C, 288 K 35°C, 308 K 35°C, 273 K 35°C, 35 K 15°C, 273 K

A line in the spectrum of atomic mercury has a wavelength of 254 nm. When mercury emits a photon of light at this wavelength, the frequency of this light is: 1.18 x 10^15 s^-1 7.83 x 10^-19 s^-¹ 8.47 x 10^-16 s^-1 76.1 s^-1 None of these choices are correct.

For the elements Cs, F, and S, the order of increasing electronegativity is: Cs < F< S OS< F< Cs CS <S<F F<Cs < S None of these choices are correct.

For each of the following compounds, classify it with the atomic-scale picture that best represents it in solution or as insoluble in aqueous solution.

Which of the following properties of a real gas is related to the b coefficient in the van der Waals equation? The average speed of the molecules of a real gas increases with temperature. Real gases consist of molecules or atoms that have volume. There are attractive forces between atoms or molecules of a real gas. The rate of effusion of a gas is inversely proportional to the square root of the molecular weight of the gas. None of these choices are correct.

The term urbanization refers to: a. farming becoming obsolete. b. the forced movement of farmers from rural areas to cities. c. the expansion of cities. d. a loosening of traditional values in rural communites.

Which of the following describes the element I? a. consists of diatomic molecules in elemental form b. reacts vigorously with alkali metals to form salts c. forms a basic solution in water d. is one of the group of the least reactive elements e. belongs to a group consisting entirely of gases f. is very reactive as a metal

Read the following paragraph from the article. Collier said that in the legends of the expedition, York's role has been overlooked. The bust "is really furthering that conversation here in our very, very white city." Which statement is an accurate explanation of what this paragraph means? A The York bust is bringing more attention to the role he played in the expedition. B The York bust is making people realize that York was the real leader of the expedition. C Most people in Portland are not interested in learning about York's role in the expedition. D Most people in Portland are not happy about the York bust appearing in their city.