Question

answer send to me now please​

Answer 1

Explanation:

ANSWER

XYZ Public School

25 March 19

NOTICE

Opportunity for science students

Its is to be notified the students from standard VI to X that our school is organising a science fair on 8th may'18.

Students those who wants to participate kindly submit their names to their respected class teachers. Details will be announced later.

PQR,

Principal

Answer 2

1. Explanation:

Our Objective

To perform a double displacement reaction using sodium sulphate and barium chloride solutions.

The Theory

Double displacement reactions may be defined as the chemical reactions in which one component each of both the reacting molecules is exchanged to form the products. During this reaction, the cations and anions of two different compounds switch places, forming two entirely different compounds.