What's a physical change you can see while camping.

What would happen if you took a normal-shaped bottle, sealed it at 1,000 feet, and then carried it up to 14,000 feet?

Paige heated 3.00 g mercury (ll) oxide (HgO 216.59 g/mol) to from mercury (Hg 200.59 g/mol) and oxygen (O2 32,00 g / mol). She collected 0.195 g oxygen. What was the percent yield of oxygen?

Saline solutions (nacl in water) used to deliver intravenous drugs are 0.89% (w/v). what mass of nacl is found in 200 ml of such a solution?

Matter is niether created nor destroyed in any chemical change. Is this a theory or a law?

Which is the acceleration of a 32-kg object if a 6.75-N force is applied to it? A 216.00 m/s2 B. 21.09 m/s2 C. 4.74 m/s2 D. 0.21 m/s2

For the separation of the unknown mixture, you are instructed to isolate the amine followed by the acid and finally the neutral. Does the order matter? If not, what other orders could be followed?

As ice melts and changes from solid to liquid, A) entropy increases. B) kinetic energy decreases. C) an exothermic reaction occurs. D) the random movement of molecules remains constant.

What volume of 0.480 m koh is needed to react completely with 15.8 ml of 0.150 m h2so4? assume the reaction goes to completion?

Which sample of water contains particles having the highest average kinetic energy?

Use the terms magnetic field and magnetic pole in a sentence