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Katen [24]
3 years ago
15

1.what happens in the nucleus of an atom when an alpha particle is emitted?

Chemistry
2 answers:
Vanyuwa [196]3 years ago
8 0

Answer: 1. The mass number is reduced by 4 units and atomic number is reduced by 2 units

2. Mass number remains same but the atomic number is increased by 1.

Explanation:

Alpha Decay: In this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. The mass number is reduced by 4 units and atomic number is reduced by 2 units.

_A^Z\textrm{X}\rightarrow _{A-2}^{Z-4}+_2^4\alpha

Beta Decay : It is a type of decay process, in which a proton gets converted to neutron and an electron. This is also known as \beta ^--decay. In this the mass number remains same but the atomic number is increased by 1.

_A^Z\textrm{X}\rightarrow _{A+1}^Z\textrm{Y}+_{-1}^0e

coldgirl [10]3 years ago
7 0
1) The nucleus of an atom loses 2 protons and 4 neutrons.
2) The nucleus of an atom gains a proton and it's neutrons remain the same.
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Chemist preformed Reaction of solid magnesium burning and found that the mass of the magnesium oxide what is greater than the ma
tankabanditka [31]

Answer:

The magnesium reacted with the oxygen in the air.

Explanation:

For argument’s sake, let’s say that the mass of magnesium oxide was 3 g and that of the oxide was 5 g.  

The reaction was

            magnesium + oxygen ⟶ magnesium oxide

Mass:           3 g                                          5 g

Mass of oxygen = 5 g – 3 g = 2 g

The 3 g of magnesium must have combined with 2 g of oxygen to form 5 g of magnesium oxide.

4 0
3 years ago
An unknown element is shiny and is found to be a good conductor of electricity, what other properties would you predict for it
VLD [36.1K]
That it is hard, and a metal? 
3 0
3 years ago
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Yanka [14]

Answer:

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by filtration

4 0
3 years ago
1.) is H2SO4 a sulfuric acid or a sulfurous acid?
Lorico [155]
1) is sulfuric acid
2)is nitrous acid
3)is hydrochlorous acid
4)is hydrobromous acid
5)is hydrophosphoric acid
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3 years ago
How to balance the chemical equation: <br> CO2+H2O--&gt;C6H12O6
Andru [333]

Answer:

6H₂O + 6CO₂ + energy  →   C₆H₁₂O₆ + 6O₂

Explanation:

The given reaction represent the formation of glucose so it is photosynthesis reaction.

Photosynthesis:

It is the process in which in the presence of sun light and chlorophyll by using carbon dioxide and water plants produce the oxygen and glucose.

Carbon dioxide + water + energy →   glucose + oxygen

water is supplied through the roots, carbon dioxide collected through stomata and sun light is capture  by chloroplast.

Chemical equation:

6H₂O + 6CO₂ + energy  →   C₆H₁₂O₆ + 6O₂

it is known from balanced chemical equation that 6 moles of carbon dioxide react with the six moles of water and created one mole of glucose and six mole of oxygen.

4 0
3 years ago
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