Alpha particles (α) are positively charged particles consisting of two protons and two neutrons, identical to the nucleus of a helium-4 atom (He²⁺). They are emitted during alpha decay of heavy radioactive elements like uranium and radium.
Explanation:
Oxidation is the gain of oxygen or loss of electrons. Here, Carbon (C) gains oxygen to form Carbon dioxide (CO₂), so Carbon is oxidized. Lead oxide (PbO) loses oxygen to form Lead (Pb), so PbO is reduced. This is a classic redox reaction where both processes occur simultaneously.
Explanation:
Bronze is an alloy primarily of copper and tin, sometimes with other elements. Brass is Cu-Zn. Steel is Fe-C. Duralumin is Al-Cu-Mg-Mn. Bronze is used for statues, coins, and bearings.
Explanation:
Natural gas is predominantly methane (CH₄), typically 70-95%. Ethane, propane, butane are minor components. CNG is compressed natural gas.
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