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Lapatulllka [165]
3 years ago
14

The isotope of an atom containing 40 protons and 51 neutrons suddenly has two neutrons added to it.What isotope is created

Chemistry
2 answers:
DochEvi [55]3 years ago
7 0

The correct answer is  

Zirconium-93

Since nothing else matches up with 40 protons  and 51 neutrons

So your answer is  

Zirconium-93

kap26 [50]3 years ago
4 0
<span>Zirconium-93 is created :)</span>
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Answer:

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Are these synthesis decomposition single replacement or double replacement?
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Answer:

1. Synthesis

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4. Synthesis

5. Decomposition

6. Synthesis

Explanation:

Kind of a hard picture to look at but let me define each chemical reaction:

Synthesis:

a + b ---> ab   In synthesis elements/compounds come together to form new                compounds

Decomposition:

ab ---> a + b   In decomposition a compound breaks down to form 2 elements/compounds

Single replacement:

a + bc ---> b + ac   In a single replacement one element/compound takes the place of another element/compound.

Double replacement

ab + cd ---> ad + bc In a double replacement 2 compounds exchange different elements/compounds.

Now, let's go through the assignment

1. P + O2 --> P4O10  This is a synthesis reaction because the two elements (P and O) came together to form one compound.

2. HgO ---> Hg + O2  This is a decomposition reaction because HgO broke into separate elements Hg and O.

3. Cl2 + NaBr ---> NaCl + Br2  This is a single replacement reaction because chlorine (Cl) replaced the spot of bromine (Br) to bond with sodium (Na).

4.  Mg + O2 ---> MgO  This is a synthesis reaction because two elements (Mg and O) came together to form one compound.

5. Al2O3 ---> Al + O2  This is a decomposition reactions because Al2O3 broke into separate elements Al and O.

6. H2 + N2 ---> NH3  This is a synthesis reaction because two elements (H and N) came together to form one compound.

<em>I hope this helps!!</em>

<em>- Kay :)</em>

7 0
3 years ago
Select the single best answer. Which mechanism properly shows the movement of electrons in the reaction? 2xsafari
sweet [91]

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D

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We must study the reaction pictured in the question closely before we begin to attempt to answer the question.

Now, the reaction is a free radical reaction. This implies that only one electron is transferred. The transfer of one electron is shown using a half arrow rather than a full arrow. The both species are radicals (odd electron species) and contribute one electron each.

Hence we must show electron movements in both species using a half arrow.

5 0
3 years ago
Which atoms exist as diatomic molecules?
Nikitich [7]
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4 0
3 years ago
Asolution has a pH of 8. Which best describes the solution?
alekssr [168]

Answer:

a weak base

Explanation:

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6 0
3 years ago
Read 2 more answers
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