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TEA [102]
2 years ago
6

Which instrument is used to measure mass?

Chemistry
2 answers:
otez555 [7]2 years ago
6 0

Triple beam balance..

lara [203]2 years ago
5 0
A triple beam balance is used to measure mass
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We want to find how much charge is on the electrons in a nickel coin. follow this method. a nickel coin has a mass of about 5 g.
Lady bird [3.3K]
The mass of a nickel coin is 5 g.
1 mol of Ni weighs 58 g. 1 mol contains 6.022 x 10²³ atoms of Ni.
therefore in 58 g  there are 6.022 x 10²³ atoms of Ni
then in 5 g the number of Ni atoms are - 6.022 x 10²³ /58 x 5 = 5.2 x 10²² Ni atoms
Therefore number of Ni atoms are 5.2 x 10²² atoms in a nickel coin

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3 years ago
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How many joules are needed to warm 675 grams of water (specific heat= 4.186 J/g degrees Celsius) from 12 degrees Celsius to 85 d
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85-12 = 73 degrees needed
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Each type of mineral has a chemical composition that is what
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