Question

when you observe a chemical property, like flammability or reactivity, does the substance always turn into something new? choose the correct answer and provide an example. no, the substance remains the same. for example, burning wood stays as wood. yes, but only if the substance is a metal. for example, iron rusts but wood does not change. no, chemical properties never change the substance. for example, water stays water when heated. yes, the substance always turns into something new. for example, burning wood turns it into ash and gases.

Explanation:

A chemical property, such as flammability or reactivity, causes a chemical change in a substance. When wood burns, it is a chemical - change process as it reacts with oxygen to form new substances like ash and gases. Heating water is a physical change as it just changes state from liquid to gas without changing its chemical composition. Iron rusting is a chemical change as iron reacts with oxygen and water in the air to form iron oxide. So, when a substance shows a chemical property like flammability, it does not always turn into something new. For example, a piece of wood might not completely burn and some of it may remain as un - burned wood.

Answer:

No, the substance remains the same. For example, burning wood stays as wood (partially un - burned).