The formula is Al2O<span>3. 2 aluminium and 3 oxygen
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Acting as a reference point for detecting motion
Answer:
it contains 2.56 x 10^15.
Explanation:
given no. of moles = 4.26 x 10^-9 atoms
one mole has 6.022 x 10^23 atoms
so it contains 4.26 x 10^-9 x 6.022 x 10^23 atoms
(If we suppose silver's atomic weight as 108.)
The given reaction Mg + O₂ → MgO is a type of Synthesis reaction. Hence option (1) is correct.
<h3>What is Synthesis reaction ?</h3>
Synthesis reactions are reactions that occur when two different atoms or molecules interact to form one molecule or compound.
It is also known as combination reaction
In the given reaction Mg and O combines with each other to form one product i.e, MgO. Hence, The given reaction Mg + O₂ → MgO is a type of Synthesis reaction. Thus, option (1) is correct.
Learn more about chemical reaction here ;
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