How is helium which is produced by the conversion of hydrogen into energy related to the solar core
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Answer : The phenomenon called as Nuclear Fusion is observed in the sun's core or solar core, where 4 atoms of Hydrogen molecule combines to give two atoms of Helium. It is due to fusing of two Hydrogen atoms to form one Helium molecule. In the core of sun this fusion process occurs, changing of mass of Hydrogen atom into Helium releases lot of energy in the form of heat and light.
The reaction that occurs inside the solar core is given below;
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2CuSO4 (aq) + 2H20 (1) -> 2Cu(s) + 2H2SO4(l) + O2(g)
A. CuSO4
B. Cu
C. H2SO4
D. H2
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Cu will be produced at the negative electrode for the following reaction:
2CuSO4 (a q) + 2H20 (1) -> 2Cu(s) + 2H2SO4(l) + O2(g) ,therefore option (b) is correct.
What do you mean by the term electrolysis ?
Electrolysis is defined as a process of decomposing ionic compounds into their elements by passing a direct electric current through the compound in a molten form.
Characteristics of negative electrode -:
The negative electrode in an electrolytic cell, is the one toward which positively charged particles are attracted.
The cathode has a negative charge because it is connected to the negatively charged .
When an electrolyte is dissolved in water and an electric current is passed through it, the Cations move towards the cathode and Anions move towards anode .
Cu will be produced at the negative electrode for the following reaction:
2CuSO4 (a q) + 2H20 (1) -> 2Cu(s) + 2H2SO4(l) + O2(g) ,hence option (b) is correct.
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The H2 product will be produced at the negative electrode for the following reaction 2CuSO₄ (aq) + 2H₂0 (1) -> 2Cu(s) + 2H₂SO₄(l) + O₂(g). option D is correct.
What is electrodes?
The electrode is an electrical conductor or source of electricity that carries electric current or circuit to the non-metallic circuit parts of a circuit, some examples are electrolyte and semiconductor.
The following reaction 2CuSO₄ (aq) + 2H₂0 (1) -> 2Cu(s) + 2H₂SO₄(l) + O2(g) is a redox reaction in which the negative end is producing the H2 gas and copper gets solidify at the positive end.
Therefore, H₂ product will be produced at the negative electrode for the following reaction 2CuSO₄ (aq) + 2H₂0 (1) -> 2Cu(s) + 2H₂SO₄(l) + O₂(g). option D is correct.
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18°
23°
45°
60°
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Answer: Value of impulse is
Explanation: lmpulse is defined as the amount of force acting over a short time interval 't' which is equal to the change in momentum of the body having mass 'm'.
Mathematically,
And,
Given:
Putting values in above equation, we get:
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HCl(aq) ------------> H₃O⁺(aq) + Cl⁻(aq)
↓ ↓ ↓
1x10⁻⁴ M 0 0
-1 x 10⁻⁴ + 1 x 10⁻⁴ +1 x 10⁻⁴
_____________________________________
0 + 1 x 10⁻⁴ M + 1 x 10⁻⁴ M
PH = - log [ H₃O⁺ ]
PH = - log [ 1 x 10⁻⁴]
PH = 4.0
hope this helps!
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1s^2 2s^2 2p^6 3s^2 3p^6 3d^2 4s^2
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When rocks break down because of chemical reactions it is called chemical weathering. The rocks are weakened and subsequent disintegration of rock by chemical reactions. They can be oxidation, hydrolysis and carbonation.