A car traveling with constant speed travels 150km in 7200 s. What is the speed of the car

Did water condense on a can of juice that was removed from the refrigerator? Is this a physical change or chemical change? 2. Did you eat toast for breakfast? Is this a physical change or a chemical change? 3. Observe a dull penny and shiny penny.

Chemical reactions can be recognized by the presence of heat, light, or gas formation. The ultimate outcome for any chemical reaction is the ... a) change from solid to a liquid b) presence of sound c) formation of a new chemical substance

Discuss what trophic level humans occupy on an ecological pyramid, and explain what happens to contaminants and environmental pollution (such as mercury) as you move down and up the ecological pyramid (what is this called?)

Sodium atom has lower electron affinity than chlorine atom why?

Which of these is not a monatomic element

When oxygen and aluminum form an ionic compound, what is the formula?

True or false forensic technicians receive OSHA data sheets regarding toxic chemicals they deal with in their lab.

What did robert boyle believe about atoms

Where do most carbon monoxide emissions come from?

The osmotic pressure exerted by a solution is equal to the molarity multiplied by the absolute temperature and the gas constant RSuppose the osmotic pressure of a certain solution is measured to be 22. atm at an absolute temperature of 353.