Physical or chemical ? 1. Starch molecules are formed from smaller glucose molecules.
2. Iron rusts
3. Ice melts
4. A match burns
5. Plants leaves lose water through evaporation
6. Hydrochloric acid reacts with sodium hydroxide to produce a salt, water and heat
7. Food is digested
8. A pellet of sodium is sliced in half
9. Proteins are made from amino acids
10. A toothpick is broken in half
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Identify the lewis acid in this balanced equation: ag+ + 2nh3 -> ag(nh3)2+a. ag+b. nh3c. ag(nh3)2+

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation:

Condensation happens when water vapor cools. true or false? ?