*explain answer for brainliest which of the following is a valid mole ratio from the balanced equation 2fe2o3 + 3c → 4fe + 3co2? two moles of f e two o three over four moles of f e four moles of c over three moles of f e two moles of f e two o three over four moles of c three moles of c over four moles of c o two

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius

Electromagnets coils of wire paper clips picked up 10 3 15 6 20 9 25 12 ms. owens' class was studying magnets. ms. owens showed her students how to make an electromagnet using a nail, a d-cell battery, and plastic coated wire. the students wrapped the wire around the nail and then attached the ends to the battery. when they were finished, they tested their magnets by investigating how many paperclips their magnets could pick up. they also tested whether they could increase the strength of their electromagnets by using more coils of wire. they recorded the class average of their results in the data table seen here. ms. owens asked her students to graph their data in a line graph. how should the students label the x-axis on their line graph? a) size of battery b) number of paper clips c) number of coils of wire d) strength of electromagnet

Which of the following is not an assumption that scientists must make about the natural world? a. regularity b. causality c. predictability d. plausibility