The atoms of a metalloid have 6 valence electrons. The metalloids is used as a semiconductor. Which best describes the electron shell in which the valence electrons are located

If you have 38 grams of CH4 how many moles of CH4 do you have 0.42 moles 2.3 moles 609.6 moles 38 moles

Which of the following is produced when magnesium (Mg) combusts? A. CO2 B. MgO C. O2 D. H2O

Define stoichiometry and explain why it is such a useful tool for chemists

The total energy of all the particles in a substance is called

How are the African plate and south American plate moving relative to each other

What type of overall charge, if any, does the balloon in Diagram B have? Explain how you determined your answer.

Move deep below the ocean's surface

The Ka of an acid is 1.3 x 10^-7. Based on the Ka and its relationship with Kw, what is the value of Kb? Use KaKb=Kw 1.3 x 10^-21 7.7 x 10^-15 1.3 x 10^-14 7.7 x 10^-8

A covalent bond is best described as Question 1 options: the sharing of electrons between atoms. the transfer of electrons. a bond between a metal and a nonmetal. a bond between a metal and a polyatomic ion.

From the list below, choose which groups are part of the periodic table