How many grams of Copper are required to form 250. g of Ag? (MM Cu = 63.55 g/mol; MM Ag=107.87 g/mol)

options:

295 g

842 g

74 g

148 g

Do plants perform both photosynthesis and cellular respiration?

Organic chemistry is a science based on the study of A) functional groups. B) vital forces interacting with matter. C) carbon compounds. D) water and its interaction with other kinds of molecules. E) inorganic compounds.

A piece of glass is immersed in a liquid. it proceeds to float on the liquid's surface. this shows that the density of the glass is? the density of the liquid?

What does it mean to say that ions are solvated when an ionic substance dissolves in water?

Explain how how to correct for the partial pressure of water when calculating the partial pressure of a dry gas that is collected over water?

A chemical engineer for a fertilizer company is determining the most efficient way to produce ammonia. the engineer carries out the haber reaction under four different conditions.

What type of Bond exist in a molecule of hydrogen Iodide

Which common material is an example of a polyamide?

A particular brand of gasoline has a density of 0.737 g/mL at 25 ∘ C. How many grams of this gasoline would fill a 12.8 gal tank (1US gal=3.78L) ?

A pump contains 0.5 l of air at 203 kpa. you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of air in the pump? 0.2 l 1.0 l 2.0 l 4.0 l