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Kryger [21]
2 years ago
8

Why are iron needles used in compasses

Chemistry
1 answer:
ludmilkaskok [199]2 years ago
4 0

A compass needle points north because the north pole of the magnet inside it is attracted to the south pole of Earth's built-in magnet . <u><em>And irons are heavily attracked to magnet</em></u> .So this is why iron needles used in compasses .

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What percentage of a radioactive species would be found as daughter material after six half–lives?
Novosadov [1.4K]
100%.....50%.....25%......12.5%......6.25%......3.125%......1.5625%
...........1............2...........3..............4.................5................6..................

After six half-lives would be found 1.5625% of readioactive species.
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3 years ago
a sample of gold is heated from 12 degrees to 28 degrees celsius and absorbs 460 joules of energy. What is the mass of gold?
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Answer:

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Explanation:

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2 years ago
you are given 500 mL of a 5M stock solution of ammonium chloride but for your experiment, you only need 100 mL of a 0.65M soluti
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Answer:

13ml

Explanation:

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6 0
3 years ago
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Grasshoppers are also eaten up by Hawks. so both brids and hawks are feeding upon grasshoppers thus the amount of energy transferred from the grass to the grasshopper is the same as the amount of energy transferred from the grasshopper to the bird.

8 0
3 years ago
Read 2 more answers
M. element<br>cenabrecht<br>0.5 mele of an​
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Answer:

Number of moles (n)=

molecular weight

weight

Weight=n×Molecular weight

=0.5×14

Mass=7g

5 0
3 years ago
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