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iragen [17]
3 years ago
12

Write down the boiling point and freezing point of mercury an alcohol​

Physics
1 answer:
nekit [7.7K]3 years ago
8 0
Mercury has a high boiling point of 357 degrees C.
Mercury has a freezing point of −39 degrees C.
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State one use and one disadvantage of the expansion of materials when they are heated.
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An example of the use of expansion of materials when they are heated is in

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It contains mercury which expands as temperature increases. This is used

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The disadvantage of expansion of materials when they are heated can be

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Read more about Heat expansion on brainly.com/question/1166774

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2 years ago
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You are on a ParKour course. First you climb a angled wall up 9.5 meters. They you shimmy along the edge of a 3.5 meter long wal
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The average speed would be  0.65 m/s, therefore the correct option is (A).

The average speed is calculated by the formula

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8 0
3 years ago
Please answer me fast ​
meriva

Answer: i think c

Explanation:QA: “What is ordinary glass made of ?”

Glass is mostly silica, or silicon dioxide, present as quartz in many types of sand. Pure silica forms a highly transparent glass, but has a very high melting or softening temperature, around 1700°C. Even at such high temperatures it is highly viscous and difficult to work. Its use is largely confined to applications requiring high transparency to ultra-violet and infra-red radiation, stability at elevated temperatures or low thermal expansion coefficient.

“Ordinary glass” windows and drinking vessels are typically made from soda-lime glass, containing silica with around 25% sodium, calcium and other oxides, which together reduce the softening temperature to roughly 500–600°C

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