1.49 moles of Al will be produced. Hope this helps you.
Answer: The Sun Could Be Seen Once during the year when north of the equator.
Molecules in the paper react differently with Hydronium and Hydroxide.
pH paper deals with acidity and basicity of something. You are correct in thinking that A is the answer. Always go with your gut. don't be like me when I was in college who always second guessed my answers. Good luck with chemistry.
