Yosef is playing with different kinds of rubber bands. some are very narrow and some are quite wide. yosef is curious about the rubber bands and develops the following scientific question: does the width of a rubber band affect how easy it is to stretch it? he decides to develop a hypothesis to test this scientific question. what could yosef’s hypothesis be?

Astudent made the lewis dot diagram of a compound shown. what is the error in the lewis dot diagram? a)an o atom should transfer all of its six electrons to mg because the formula is mgo b) both electrons of mg should be transferred to one o adam because the formula is mgo c) the electrons should be transferred from each o add him to capital mg because mg has fewer electrons d) the number of dots around mg should be four because it has to transfer two electrons to each o

Compared with the freezing-point depression of a 0.01 m c6h12o6 solution, the freezing-point depression of a 0.01 m nacl solution is

If blood contains 150g of hemoglobin per liter of blood, how much hemoglobin would be contained in 10 ml of blood