Rabindranath Tagore felt that children ought to be subjected to strict discipline. true or false​

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

How many atoms are there in 5.70 mol of mg

Name the element in group 17, period 2. (periodic table)