Rutherford used gold for his scattering experiment because gold is the most malleable metal and he wanted the thinnest layer as possible. The goldsheet used was around 1000 atoms thick. Therefore, Rutherford selected a Gold foil in his alpha scatttering experiment.
According to the law of conservation of mass, the quantity of the elements, involved in chemical reactions does not change. For example,
H2O2 - > H2O + O2
is wrong, because there are two O atoms on the first side of the equation, and three on the other. To correct it, coefficients must be added, until the amount of both H and O atoms is equal on both sides.
2H2O2 - > 2H2O + O2
Answer:
C. Tip had the lower pressure, it was 652.71mmHg
Explanation:
To answer this question you need to convert both values into a common unit so you can compare directly.
87kPa = 652.71 mmHg
Answer:
The atmosphere is 10 million times
Explanation:
- Atomic weight of copper = 63.5 g
- 1 mole of copper contains = 63.5g = 6.023 × 10²³ atoms of copper
- 1 g of copper contains
= 9.4 × 10²¹ atoms- Therefore, 3.11g of copper contains

- = 29.234 × 10²¹ atoms
Hope you could get an idea from here.
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