In the copper- planting solution lab placed copper pennies in vinger is an weak acid with hydrogen ions when you put the pennies in the vinger you should haev abserved small gas bubbles. what were these bubbles composed of and how did they form

Which substances have the lowest melting points: ionic covalent, or metallic

Which statement correctly describes potassium iodide, ki? there is a one-to-one ratio of potassium ions to iodide ions. potassium gains electrons and iodine loses electrons during the reaction. the lattice is held together by potassium anions and iodide cations.

Choose all the answers that apply. as ocean depth increases, temperature decreases temperature increases pressure increases pressure decreases salinity increases density increases