How are the scientific method and the engineering method similar? Both methods identify failure points.
Both methods construct a hypothesis.
Both methods focus on designing things.
Both methods work on finding solutions to problems.

What is the percent by mass of oxygen in fe2o3

Can someone me out on this question for my national 5 chemistry homework

Use the drop-down menus to label each of the following changes p for physical change and c for chemical change. the substance changes to a new substance. the original substance can be recovered. the color changes. gas is produced and given off. the substance changes size, shape, or volume.