1. Calculate the pH and pOH of an 0.5 mol/L NH3∙Н2О (aqueous solution). Take in to account that NH3∙Н2О is a weak electrolyte with Кb(NH3∙Н2О) = 1.8·10-5 mol/L.

Which of the following provides support and protection for many insects a) muscle b) skeleton c) spinal cord d) exoskeleton

Which of the following would not diffuse through the plasma membrane by means of simple diffusion? 1 oxygen 2 glucose 3 a steroid hormone 4 a lipid soluble vitamin

Some familiar products contain some of the same types of atoms. for instance, the chemical formula for baking soda is nahco 3. the chemical formula for liquid bleach is naclo, and the chemical formula for table salt is nacl. which choice best describes why these three products have some of the same types of atoms in common?