Which of the following statements related to a mole are true? Select all that apply.

Under normal conditions, the movement of electrons in metals is a. random b. directional

Balance the equation αC6H14 (g) βO2 (g) →γCO2 (g) δH2O (g)

Is eating a piece of candy physical change, chemical change, or both?

Which of these is a significant limitation of using wind power for energy? A. Wind is not capable of traveling long distances. B. Wind energy is mostly produced in rural areas while most of the energy needed is in urban areas. C.

Which of these compounds is the ester formed from the reaction of propanoic acid (ch3ch2cooh) and ethanol (ch3ch2oh) ?

Write the chemical formula for Zn2 + and I

What salt is formed in the reaction of aluminum with hydrochloric acid? write the formular of salt

What is molarity?

H2S (g) + O2 (g) - > SO2 + H2O, how many grams of O2 are needed to make 25.0 g of SO2 (Hint: balance the equation first) a.) 12.5g b.) 18.7g c.) 32.0g d.) can't be determined

With the exception of our sun, most stars are huge, bright balls of gas located trillions of miles away from earth true or false