Which of the following is an element water oxygen carbon dioxide ammonia

2.8x10^10cm/s to ft/s

What changes in every chemical reaction besides forming and breaking of chemical bonds?

In which direction does heat flow? Cold to Cold Cold to Hot Hot to Cold Hot to Hot

When a balloon is rubbed with human hair, the balloon acquires an excess static charge. This implies that some materials A) conduct electricity, while others do not. B) can accept protons more easily than others.

1. What type of path does a tornado take if it touches down? A. straight B. haphazard C. predictable D. extremely wide C

Which of Newtons law's is sometimes expressed as "for every action there is equal and opposite reaction"

Provide a general comparison of the empty space in a solid with that in a liquid as well as

Which of the following are chemicals? A. clothing B. food C. fuels D. all of the above

How many valence electrons are in atom of sulfur?

My sister needs this answered! Donald is creating an experiment to determine if fertilizer affects plant color. He makes this statement: "If each plant receives a different amount of fertilizer, then the plant's color intensity will change.