Cu có hai đồng vị là 63cu và 65cu biết rằng M cu = 63.54. Nếu như có 500 nguyên tử Cu thì trong đó có bao nhiêu nguyên tử là 63 Cu

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.

b.

the accuracy of the data.

can you attach the