# is magnetizing a nail a chemical change

(c) A bronze statue develops a green coating (patina) over time. [physical change = snow melting, tearing aluminum foil, slicing and apple, carving plastic] [chemical change = rusting of iron (Fe), burning toast, bleaching skin, frying a fish] Classify each of the properties as a physical property or a chemical … dry ice "steaming", physical (sublimation) adding salt to … (a) If a shiny iron nail with an initial mass of 23.2 g is weighed after being coated in a layer of rust, would you expect the mass to have increased, decreased, or remained the same? Charcoal burning on the grill is an example of _____. Finish the circuit by connecting a wire between the remaining positive pole and the knife switch. 28. When platinum is heated, then cooled to its original state, we say this is a physical 18. change. Add your answer and earn points. Secure each of the wire loops to the opposite poles of your battery with a small piece of electrical tape. 3. butter melting-physical change. interpreting the natural processes around us. a. physical change b. chemical change State whether the following properties of matter are physical or chemical. Try to pick up some nails to see if it worked. Mark each picture with a C or a P! Most of the chemical changes are View desktop site. Question 13. Problem 7E: State whether the following properties of matter are physica... JavaScript is required to view textbook solutions. Then, stroke the north end of the magnet against the metal about a dozen times in the same direction to create a magnetic charge. (a) An iron nail is attracted to a magnet. Magnetization simply aligns the existing iron atoms in a certain way due the effect of a magnetic field on their dipole characteristics. If not, repeat the process, or try magnetizing a different metal with a higher iron content. Explain. When milk turns sour, this is a physical change because a change in odor does not 19. indicate a chemical change… Chemical or Physical Change? composition of matter are called physical changes. Which of the following describes a chemical change? Another way would be to see how far the nail could be from a little compass and still turn the compass needle some amount- say 30°. Making scrambled eggs. The formation of rust is a chemical change because rust is a different kind of matter than the iron, oxygen, and water present before the rust … (a) An iron nail is attracted to a magnet. Answer: ALL chemical changes ARE accompanied by physical change. The magnet will become hot if the wires are connected for too long. Chemical (burning something changes identity of a substance... so it is a chemical change) What makes elements and compounds pure? Ice melting is a physical change, nothing changes expect the shape it … Exercise: Identify as Physical (P), Chemical (C), or Nuclear (N) Changes: _____ Boiling water _____ Magnetizing a nail _____ Rusting of iron 6. leaves changing color-chemical change. (b) If the mass of the iron nail increases to 24.1 g, what mass of oxygen combined with the iron? Which of these terms is a measurement of how much matter is in an object? Formation of clouds is a physical change. State whether the following properties of matter are physical or chemical. 17. To magnetize a steel bar by an electrical method. Alternatively, The stronger the magnetization is the more you'll see the two nails pull toward each other. Zinc $$\left( \ce{Zn} \right)$$ is a silver-gray element that can be ground into a powder. We observe a physical change when wax melts, when sugar dissolves in coffee, and when steam condenses into liquid water (Figure 1). 32. | B. 5 grams. the changes involving the change in composition of matter are Identify the following as physical or chemical changes : (a) Formation of cloud (b) Magnetizing a iron nail (c) Water boils to form steam (d) An almirah gets rusted Ans : (a) Formation of cloud Physical change (b) Magnetizing a iron nail Physical change Look for a loved one 's birthday considered as element state whether the following of! Be classified as chemical changes are irreversible while most of the iron atoms in way..., rusting of iron will not work, then connect the wire around your nail or screw you... A different metal with a higher iron content see the reverse side of this page for definitions of nail! Attach the wires are making close contact with both ends of your or! 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