Calculate the volume of 0.250 M H2SO4 that contains 0.00255 mol H2SO4 with explination

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

What is the value of keq for the reaction expressed in scientific notation?

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged