4. What is a disadvantage of making a model? A model may represent a complex object or process. b model may lack important information. C There is not a sufficient variety of model types. D Most models are too large for practical use.

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

Which metals are called noble metals

True or false exosphere is the least dense