OBIRI

This page lists questions and answers that were posted by visitors named OBIRI.

Questions

The following questions were asked by visitors named OBIRI.

out of 40 students,14 are taking english and 29 are taking chemistry.if 5 students are in both classes,how many are in neither class?how many students are in either classes?

how do i know a substance is an acid or base without litmus paper

Answers

The following answers were posted by visitors named OBIRI.