Label each of the following as either a physical process or a chemical process:(a) rusting of an iron bridge, (b) melting of ice, (c) burning of a wooden stick, (d) digestion of a baked potato, (e) dissolving of sugar in water

Which of th following are chemical changes? and which are physical changes? making syrup by heating maple sap to remove water through evaporaiton?

In which state of matter do the particles of a chemical have the highest kinetic energy?

a white powder is cooled from the crucible

Which of the following is an example of a physical change?  a Burning a piece of wood  b Cooking a hamburger  c Evaporating rubbing alcohol  d Rusting iron

Which of the following an example of physical property of silver (Ag)? 1.) silverware slowly tarnishes over time 2.) tarnished silverware can be restored to a shiny metallic finish if placed in a boiling hot aqueous solutions of baking soda that also contains alumninun 3.) silver coins in pirate treasure turn black when left in the sea for centuries 4.) silver sinks in seawater 5.) silver is an excellent conductor of electricity 6.) silver is soft for a metal, though not as soft as gold

I'm not sure how to do this  number 8

2. Are the following chemical (C) or physical changes (P)? Sugar dissolves in water b) Sugar is heated to form caramel. Water evaporates. d) Charcoal burns on a grill.

In a covalent bond between a oxygen atom and a sulfur atom, which of the atoms has a partial positive charge?

In the list below, select the pure substances that are compounds: oxygen sea water air diamond gasoline carbondioxide wine silver bronze table salt (NaCl)