Answer:
The Ring of Fire, also referred to as the Circum-Pacific Belt, is a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes. The majority of Earth's volcanoes and earthquakes take place along the Ring of Fire
Explanation:
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Answer:
There are a total of 56 ethnic groups in China, with 56 ethnic groups and 56 family members.
Explanation:
There are a total of 56 ethnic groups in China, with 56 ethnic groups and 56 family members.
Answer:
I think B is the answer so hope
Answer:
This is a substance that has definite composition
Explanation:
chemicals are substances that can not be broken down any further by physical process.it is a form of matter having a constant chemical characteristics and properties
Explanation:
Oxygen can be prepared in a number of ways in the laboratory.
Oxygen is an element that belongs to the sixth group on the periodic table.
It can be prepared by:
- Heating easily decomposable oxygen compounds such as KClO₃.
The catalyst often used here is MnO₂:
2KClO₃ → 2KCl + 3O₂
- Addition of hydrogen peroxide solution to manganese (IV) oxide which is a catalyst without heating:
2H₂O₂ → 2H₂O + O₂
Oxygen can also be produce by fractional distillation of air. Also electrolysis of water produces oxygen. These methods commercially produces oxygen.
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Oxygen for combustion brainly.com/question/3192341
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