An engineer designing a small rocket researched the characteristics of five different potential rocket fuels. Which additional step in the engineering protocol must be carried out to successfully design a fuel-efficient rocket engine?

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

How many moles are in 7.2 x 10^23 carbon molecules?

Astudent made the lewis dot diagram of a compound as shown. mg is written with two dots shown on its top. an o is written on each side of mg. each o has six dots around it. an arrow is shown from one dot on mg toward the vacant space around the o on the right. another arrow is shown from the other dot on mg toward the vacant space around the o on the left. the title of the art is students lewis dot model. what is the error in the lewis dot diagram? an o atom should transfer all its six electrons to mg because the formula is mgo. both electrons of mg should be transferred to one o atom because the formula is mgo. the electrons should be transferred from each o atom to mg because mg has fewer electrons. the number of dots around mg should be four because it has to transfer two electrons to each o.