Explain how you would determine the number of moles of aluminum in 96.7 g of aluminum.

If an atom has 8 valence electrons, how many electrons does it need to gain to achieve a stable electron configuration?

Hexane and hexene are hydrocarbon compounds from different homologous series. the combustion of these two compounds produce different amount of soot. explain the difference based on the percentage of carbon by mass.

What trend does the first ionization energy follow, going down the periodic table?

Desvribe all lab equipment that can be used to accurately measure the volume of a liquid

Two chemical bonds unite three atoms into a molecule. Which types of bonds are they?

Before a race, an athlete warms up by jogging around the track shown below at a constant rate of 2.3 m/s. What statement best describes his motion as he jogs around the curved part of the track?

What physical property is changed when a waitress pours coffee from a pot into four mugs? temperature density volume color

Calcule o calor especifico do estanho sabendo que foram necessarias 100 cal para elevar em 20ºC a temperatura de 100 g de estanho

What's the smallest part of a compound

The inertness of the noble gases is due to a. the outermost shell has six electrons. b. the bonds they form with other elements. c. the number of protons and neutrons. d.