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dalvyx [7]
3 years ago
11

Given that a 3cm lenght of magnesium weights approximately 0.04g, calculate the number of moles of acid that reacted with the 9c

m piece of magnesium ribbon.​
Chemistry
1 answer:
pychu [463]3 years ago
7 0
Iiiiiiiiiiiiooooooopp.
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The boiling point of a substance in City A is found to be 145 degrees celcius. The boiling point of the same substance in City B
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City B is at a higher temperature because as you go higher in altitude the boiling point of water becomes lower.
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hjlf

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it'a answer number 2

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Some radioactive nuclides have very short half-lives, for example, I-31 has a half-life of approximately 8 days. Pu-234, by comp
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Answer:

Here's what I find.

Explanation:

Iodine-131

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The main danger is from ingestion. The iodine concentrates in thyroid gland, where the β-radiation destroys cells up to 2 mm from the tissues that absorbed it.

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Plutonium-239

Plutonium-239 is an alpha emitter.

_{94}^{239}\text{U} \longrightarrow \, _{92}^{235}\text{Xe} + \, _{2}^{4}\text{He}

Alpha particles cannot penetrate the skin, so external exposure isn't much of a health risk.

However, they are extremely dangerous when they are inhaled and get inside cells. They travel first to the blood or lymph system and later to the bone marrow and liver, where they cause up to 1000 times more chromosomal damage than beta or gamma rays.

It takes about 20 years for plutonium to be eliminated from the liver around 50 years for from the skeleton, so it has a long time to cause damage.

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