Write True if the Statement is correct and False if itis wrong-4. There are three important things neededto occur.forcombustion7. The pressence or absence of oxygen has various effects.on matter to undergo chemical change.8. Kusting is caused by the reactionSent in the air.9. The amountofofiron with oxygen pre-combustion formed in an iron depends.the moisture and humidity of the surrounding.on10. When an apple is cut, the fleshy part of the fruit changecolor into yellow.11. Carbon dioxide is a part of the air that surrounds us.and can react with other states of matter to pracluce newmaterial with different composition.12. Iron When combined with oxygen form rust.m. Oxygen can cause changes on different materials.14. Lighted candle shows the absence of oxygen.15. New chains shows the presence of oxygen.
Answer (1)
Answer:Okay, let's take a look at these statements. Here's my assessment: 4. True - Combustion requires fuel, oxygen, and heat.5. True - Oxygen is a key component in many chemical reactions, and its presence or absence can significantly alter the outcome.6. False - Rusting is caused by a chemical reaction between iron and oxygen in the presence of water.7. False - The amount of rust formed on iron depends on factors like the amount of oxygen present, the temperature, and the presence of water (humidity).8. False - The fleshy part of an apple turns brown when exposed to air due to oxidation, a chemical reaction involving oxygen.9. True - Carbon dioxide is a component of the air and can react with other substances to form new materials.10. True - Iron reacts with oxygen in the presence of water to form rust (iron oxide).11. True - Oxygen can react with various materials causing chemical changes.12. False - A lighted candle requires oxygen to burn. The flame is a sign of oxygen consumption.13. False - New chains do not necessarily show the presence of oxygen. They could be made of various materials. Let me know if you have any other questions or if there's anything else you'd like me to check.
