The lenght increases
Solid iron oxide and a poisonous called sulphur dioxide
Traditionally, irons were made of iron. They were heated by a fire and then applied to clothes. Today, irons are usually made of other metals.
The bar that affects the compass is the magnet, The bar that is attracted to the magnet is iron, and the bar that is not attracted to the magnet is aluminum.
Rusty iron no longer can conduct electricity because it is corroded, or it reacts chemically to form a compound that weakens it.
Fe is the chemical symbol for iron. When iron reacts with steam it corrodes, or rusts.
The copper has a higher thermal expansion coefficient than the iron. The copper wants to get longer relative to the iron so the bar bends away from the iron strip. For example if iron is on top and copper on the bottom the bar bows downward. This seems opposite to your question conclusion
This is because copper expands more than iron when heated, causing the side with copper to elongate and bend towards the iron side. This phenomenon is known as thermal expansion and is utilized in devices like thermostats to control temperature.
The bar will contract (get shorter) as it cools down, and expand (get longer) as it is heated up.
The second iron bar with a mass of 300 grams has the most thermal energy because thermal energy is proportional to both mass and temperature. The greater mass of the second iron bar means it will have more thermal energy compared to the first iron bar with a mass of 150 grams, even if they are both at the same temperature of 250°C.
A chemical reaction has ocurred her and it has now formed a compund.
A iron bar is a conductor
A iron bar is a conductor
Two metals making up the strip have different rates of expansion, so as heat is applied and the metals expand, one metal will expand faster than the other, causing that side to grow longer faster than the other side. Since the faster growing metal strip is bonded to the slower expanding, now shorter piece of metal, some movement must occur and the only means of movement is to bend.
you have to mine iron ore then put it in a furnace and you will get an iron bar called an iron ingot.
Yes, a reaction will occur when copper is heated with iron oxide. The iron in iron oxide will react with the copper to form copper oxide and iron.
You can differentiate between a bar of iron and a bar of copper by testing their magnetic properties - iron is attracted to magnets, while copper is not. A bar magnet will attract small iron objects, while a bar of copper will not be attracted.
The iron ball will expands and the iron ball will be hot .