How does adding an iron bar to a solenoid affect the magnetic field of the electromagnet? It changes the magnetic field to a current. It changes the magnetic field’s direction. It increases the magnetic field’s strength. It decreases the magnetic field’s strength

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.

For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with ph. if the solubility does change, pick the ph at which you'd expect the highest solubility. you'll find ksp data in the aleks data tab. compounds does solubility change with ph

The number at the end of an isotope’s name is the number.