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pantera1 [17]
3 years ago
8

an isotope or barium (atomic number 56)has an mass of 138.how many neutrons are in the nucleus of this isotope

Chemistry
1 answer:
tia_tia [17]3 years ago
8 0

Answer:

Diagram of the nuclear composition and electron configuration of an atom of barium-138 (atomic number: 56), the most common isotope of this element. The nucleus consists of 56 protons (red) and 82 neutrons (blue).

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How many grams of hydrogen are needed to produce 1.80 g of water according to this equation? 2H2 + O2 → 2H2O
Arisa [49]

Hey there!:

Molar mass:

H2 = 2.01 g/mol    ;    H2O = 18.01

Given the reaction:

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