Calculate ΔE for a chemical reaction that produces 181.0 kJ of heat but does no work on its surroundings. kJ

Which type of cell is E. coli? A. bacteria B. rod-shaped C. prokaryotic D. eukaryotic

Draw the structure of a compound of molecular formula C4H8O that has a signal in its 13C NMR spectrum at ≥ 160 ppm. Then draw the structure of an isomer with no rings of molecular formula C4H8O that has all of its 13C NMR signals at < 160 ppm.

Why do we use an object's mass, rather than its weight, to indicate the amount of matter it contains?

How energy is conserved?

What technology did mackinnon use to discover the structure of the potassium ion channel?

Restate Newtons first law in terms of acceleration

Electrolysis of 10.0 g of a binary metal chloride deposits 6.207 g of the pure metal. what is the metal?

Which pair of elements are the most different

A gas held at constant volume is heated from - 5 ºC to 50 ºC, if the initial pressure is 1.0 atm, what is the new pressure the gas exerts?

Unknown element x is a metal that ionically bonds to sulfur. is the formula, x3s feasible? why or why not? a) it is feasible. the three metallic ions each receive an electron from sulfur. b) no, it is not feasible.