The periodic law states that the physical and chemical properties of the elements are periodic within the sequence of their atomic numbers. true or false

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

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.

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false