Answer:
The stratification of Earth into its geologic layers was brought about by the formation of the Earth's iron core. The iron core was generated by a combination of radioactive decay and gravitation, which raised the temperature enough for molten iron to form.
Explanation:
Answer:
• An acid is an electrolyte that hydrolyses in water to release hydrogen ions.
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• pH level of an acid;
- Strong acid → 0 - 3.8
- Weak Acid → 4.0 - 6.7