TL: filings? 10. Which of the following separation techniques can be used to separate the mixture of sand and iron TH S w Colt Ver from Ta AT Pe Water B А C D 11. Seawater is a mixture of salt and water. Which of the following statements BEST describes seawater? A. The components are chemically combined. B. The components are strongly bonded to one another. C. The components cannot be filtered and show a single physical appearance. D. The components show the different physical characteristics. 12. Which h of the following statements distinguishes pure substances from mixtures? A. They can be separated by physical means. B. They are consist of two or more kinds of matter. C. They have no specific solubility and densities. D. They have constant boiling temperature and melting temperature. 13. Which of the following groups contain only pure substances? A. ammonia, silicon and vinegar C. air, methane and sodium chloride B. air, carbon dioxide and water D. calcium fluoride, ethanol and iron 14. Water purifying stations use distillation to make pure and drinkable water. This process uses heat to evaporate only the liquid water and leaves some heavy substances or other impurities. That idea can be drawn from this information? A. Distillation is not the only way to purify water. B. Distillation is a process that can be used to separate impurities in water. C. Water stations purify water by 100% pure. D. Water is always drinkable because it only contains minerals. 15. Which of the following group of materials are composed of mixtures? A. alcohol (70%), carbon, vinegar C. bleach, carbon dioxide, oil B. air, blood, calamansi juice D. sodium chloride, oxygen, water OTOR​