Show how you would work carry out this calculation: 1.96g of an unknown hydroxide X(OH)2 was dissolved in water, and the solution was made up to 250.00cm in a volumetric flask. In a titration, 25.00cm of this solution of
X(OH)2 required 21.20cm of 0.250 mol dm' HCl(aq) to reach the end point.
Equation: 2HCl(aq) + X(OH)2(aq) → XC12(aq) + 2H2O(1)
2021 XChalones
Identify the unknown hydroxide X(OH)2

Five students had to answer the question how are elements arranged in a periodic tabledamon: i think the elements are arranged by increasing massflo: i think the elements are arranged according to their properties sienna: i think the elements are arranged by when their discovers kyle: i think the elements are arranged according to how common they areglenda: i don't agree with any of themwho is right

Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent

Which of the following contributes to the structural rigidity of cellulose? adjacent glucose polymers are stabilized by hydrogen bonding. glucose residues are joined by (α1→4) linkages. cellulose is a highly branched molecule. the conformation of the glucose polymer is a coiled structure.