Four groups of students were each asked to create table listing two elements and two compounds. Only one group’s table was correct. Which group’s table is correct? [Can someone just please answer]

Litmus paper is made from water-soluble dyes which are extracted from lichens. this paper is used as an acid-base indicator. which of these common household substances would turn blue litmus paper red? a) bleach b) lye c) soap d) vinegar

1) this is the structure in the cell nucleus that houses a cell's genetic information

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins