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Anna11 [10]
2 years ago
14

Which statement best describes alpha decay?(1 point)

Chemistry
1 answer:
Veseljchak [2.6K]2 years ago
6 0

Answer:

After the ejection of an alpha particle, the remaining nucleus has a mass number that is four less and an atomic number that is two less, so alpha decay is a type of nuclear fission.

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The compound Fe3CI is made of what?
sergeinik [125]

Answer:

nglos324 - fe3c. Iron carbide is an interstitial compound of iron and carbon with the composition Fe- 6.68 wt % Carbon. It is a brittle ceramic material and is produced in carbon steels or cast irons during pseudo-equilibrium cooling from above the eutectoid temperature (723 C).

Explanation:

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3 years ago
In a similar way to oxidation-reduction reactions, half-reactions can be written for electrochemical reactions.
kirza4 [7]

the answer to this question would be true just thought u should know lol xd



7 0
3 years ago
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How many atoms are in 1.00 moles of He
olchik [2.2K]

Answer:

1.00 mole of He have 6,02x10^{23} atoms.

Explanation:

To solve this exercise it is important to know the definition of Avogadro's number

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6 0
3 years ago
The positon of hydrogen is conversial in mendleevs perodic table give reason​
Andreas93 [3]
The position of hydrogen is controversial in periodic table because hydrogen is the only element with out neutron. it belongs to 1 st group but it is not placed there .
6 0
2 years ago
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Write the chemical equation of the reaction with a change in colour​
Lelu [443]

Answer:

(i) Change in colour (ii) Change in temperature  (iii) Formation of precipitate

Explanation:

(i) Change in colour: Reaction between lead nitrate solution and potassium iodide solution. Pb(NO3)2(aq)+2KI → PbI2(s)+2KNO3(aq) In this reaction, colour changes from colourless to yellow. (ii)Change in temperature: Action of dilute sulphuric acid on zinc. Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2 In this reaction, heat is evolved (iii) Formation of precipitate: Action of barium chloride on sodium sulphate. BaCl2(aq) +Na2SO4(aq) →  BaSO4(s) +2NaCl(aq) BaSO4(s)

8 0
2 years ago
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