1. El Lipotón es un pigmento brillante y blanco que se utiliza en pinturas de interior de base acuosa y consiste en una mezcla de BaSO4 y ZnS. Cuántas moléculas se producirán de ZnS, si reaccionan 0,275 mol de ZnSO4 y 31,5 gramos de BaS al 85% de pureza, si la reacción tiene una eficiencia del 75% BaS (ac) + ZnSO4 (ac) → ZnS (s) + BaSO4 (s)

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

atp is used for energy.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.