What are representative elements?

What physical force can cause a change in the state of matter?

354.4 g of chlorine gas (MW=70.9g/mol) is held in a vessel with a fixed volume of 70.0 L. What is the pressure of the gas in atmospheres if its temperature is 30.0 Celsius?

What is a chemical symbol trying to portary

What are the advantages of wind power?

Material from an environmental study was suspected to contain the banned pesticide, Aldrin, of which you have a pure sample. Gas chromatography showed 6 peaks. How would you determine unequivocally which of these peaks represented Aldrin?

You know that 8.9 moles of solute particles are dissolved in that liquid solution. If the molarity of the solution is 25 M, how many liters of solution do you have?

Which of the following will most likely happen if you apply unbalanced forces to an object? It will change position. It will become charged. It will change mass. It will change size.

Magnetism easily separates what mixture? A). Sand and glass B). Sand and iron C). Sand and clay D). Sand and aluminum

Match the science with the best description?

Can magnetism be used to identify a substance