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zhenek [66]
3 years ago
15

Read temprature on thermometer i am confusion

Chemistry
1 answer:
balu736 [363]3 years ago
8 0

Answer:

a)22.2°C after adding magnesium

b)17.3°C before adding magnesium

c) 4.9 is change

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Determina el numero de masa para el paladio en la siguiente tabla:*
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The concept of atomic masses we can find that the correct answer is:

       c) 101

The atomic mass or mass number of an element is the sum of its protons plus the neutrons that are in the atomic nucleus, the electrons are not taken into account because they have a mass much lower than the masses of protons and neutrons.

   

In the table they indicate that there are 46 protons and 55 neutrons, therefore

          M = #_ {protons} + #_ {neutrons}

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In conclusion using the concept of atomic masses we find that the correct answer is:

c) 101

Learn more about atomic mass here:

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--------------

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What type of reaction is represented by the following equation:
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