Trong tự nhiên Cu có 2 đồng vị là Cu63 và Cu65 Tính phần trăm về số lượng
Tính khối lượng của Cu63 cod trong 14,4g Cu2O
Tính phần trăm khối lượng của Cu63 có trong 14,4g Cu2O

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

give me abc and i will get it for u.

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl