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Studentka2010 [4]
3 years ago
7

Can someone please help me please?

Chemistry
2 answers:
vekshin13 years ago
7 0

Answer:

The sum of the molar masses of each isotope of the element.

Ludmilka [50]3 years ago
6 0

Answer:

The average atomic mass (sometimes called atomic weight) of an element is the weighted average mass of the atoms in a naturally occurring sample of the element.

Explanation:

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Ion solution is correct. hope it helps
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Balancing chemical equations
kolbaska11 [484]

Answer:

2B2 + 3O2 → 2B2O3

Explanation:

Balance The Equation: B2 + O2 = B2O3

1. Label Each Compound With a Variable

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3. Solve For All Variables (using substitution, gauss elimination, or a calculator)

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  B: 4 4 ✔️

  O: 6 6 ✔️

hope this helps!

7 0
2 years ago
c) If a mixture of zinc powder and cobalt(II) oxide is heated, the following reaction occurs: Zn(s) + COO(s) → ZnO(s) + Co(s) (i
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Answer:

The metal which reduces the other compound is the one higher in reactivity. So in this case, it is.

Explanation:

5 0
2 years ago
What is the change in temperature when 75 grams of water releases -2657 J of energy? The specific heat of water is 4.18 J/g°C
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