Select all that apply. Which items are properties of acids?

1) soapy
2) sour
3) possible burns
4) sweet
5) sharp

I need this answer fast pls and ty

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?

Acompound has a molar mass of 92.02 grams/mole, and its percent composition is 30.4% nitrogen (n) and 69.6% oxygen (o). what is its molecular formula? a. n2o4 b. no2 c. n2o d. n4o2