What would be the product(s) of the reaction between aqueous HCl and solid Ca?
a. CaH2 + Cl2
b. CaCl2
c. H2+CaCl2
d. H + CaCl

c. H2+CaCl2

Explanation:

Ca + 2HCl ---> CaCl2 + H2

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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