Question

Classify the following as a physical or chemical chaner:
12 Silver nitrate dissolves in water.
13. Iron is separated from sulfur with a magnet
14. A copper turns into a liquid at 1083.0 degrees Celsius.
15. Vinegar is added to baking soda and bubbles are produced.
16. Gasoline burns in the presence of oxygen.
17. An aqueous solution of sodium chloride is heated and you are left with a
white powder.
18 Dry ice, solid carton dioxide sublimes at room temperature.
19.oily swirls are observed when boric acid dissolves in water.
20. Magnesium is added to hydrochloric acid and the test tube gets warm.​

Answer 1

Answer:

of cinnabar (Hgs), produce

metallic mercurymetallic mercury and not its oxidedoes the roasting of cinnabar (Hgs), producemany electrons are required to discharge 3 moles ofny electrons are required to discharge 3 moles of Ca++ ionelectrons are required to discharge 3 moles of Ca++ ionmetallic mercury and not its oxidedoes the roasting of cinnabar (Hgs), produceSOF2, SOBr2 or SOI2 not used in Darzen'sWhy is SOF2, SOBr2 or SOI2 not used in Darzen's reaction?1s2,2s2,2p6,3s2 while of the element B is 1s2,2s2,2p5.The formula of