Explain weather car battery acid is a pure substance or a mixture

Battery acid could refer to any acid used in a chemical cell or battery, but usually, this term describes the acid used in a lead-acid battery, such as those found in motor vehicles.

Car or automotive battery acid is 30-50% sulfuric acid (H2SO4) in water. Usually, the acid has a mole fraction of 29%-32% sulfuric acid, a density of 1.25–1.28 kg/L and concentration of 4.2–5 mol/L. Battery acid has a pH of approximately 0.8.

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

a scenario where a cell may be needed to perform a form of endocytosis is when transporting large molecules. a scenario where a cell may be needed to perform a form of exocytosis is when releasing the large molecule from the cell.