How many moles are represented by 118 grams of cobalt? cobalt has an atomic mass of 58.93amu

Which statement best describes electrolytic and voltaic cells? A.) Electrolytic cells and voltaic cells each carry out spontaneous reactions. B.) Electrolytic cells and voltaic cells each carry out nonspontaneous reactions. C.

Which energy transfer takes place when water freezes to form ice crystals in the atmosphere? No energy is transferred. Energy is transferred from the air into the water. Energy is transferred from the water into the air.

Which of the following is an example of a colloid Muddy water Mayonnaise Orange juice Cake mix

Which properties make a metal a good material to use for electrical wires? malleability and reactivity conductivity and ductility ductility and malleability reactivity and conductivity

The amount of matter in an object is known as

Is baking soda a element compound homogeneous mixture or heterogeneous mixture?

For the reaction: C (CH3) 3I + Cl - → C (CH3) 3Cl + I- What is the activation barrier for the SN2 reaction mechanism, in units of kcal/mol? Provide your answer to the nearest 0.1 kcal/mol.

Which of the following utilizes the measurement of a short - or long-lived radioactive element, with its decay product, to determine the absolute age of an object? A. varves B. radiometric dating C. dendrochronology

A student-made sample of sodium carbonate weighing 0.169g that generates 37.6 mL of CO2 gas when treated with sulfuric acid. The atmospheric pressure in the lab is 731.8 mm Hg and the temp. is 21.3-degree Celsius. A.

In order to understand the prehistory of the Hawaiian island of Lana'i better, anthropologists Maria Sweeney, Melinda Allen, andBoyd Dixon used radiocarbon dating on charcoal found in an ancient dwelling site, the Kaunolu Village National Historic