Question

part c now build a model of liquid water. place your materials on a sheet of paper. the regular - size marshmallows can represent the larger oxygen atoms, and the mini marshmallows can represent the smaller hydrogen atoms. connect the marshmallows with toothpicks using the picture as a guide. create a total of four molecules. what was difficult about building the model?

Explanation:

Building a model of liquid - water using marshmallows and toothpicks may face several difficulties. For example, accurately representing the three - dimensional structure and the correct bond angles between oxygen and hydrogen atoms can be challenging. Also, maintaining the stability of the model as liquid water has mobile molecules, and the marshmallow - toothpick structure might be fragile.

Answer:

Accurately representing the 3 - D structure and bond angles, and maintaining model stability.