Which action could be taken by an individual and would have the greatest positive impact on global consumption of nonrenewable resources? using only recycled materials in construction

using hydroelectric power instead of coal

using and recycling plastic water bottles

using less energy at home

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.