the answer would be 616.133
The three chemical properties of a penny
Penny ( Pennies: plural; refer to a number of individual coins)
- A chemical property of a substance is a characteristic of a particular substance that can be observed in a chemical reaction. Some major chemical properties include flammability, toxicity, heat of combustion, pH value, rate of radioactive decay, and chemical stability.
<h3>What is chemical property?</h3>
The chemical properties of a substance can be determined by performing experiments that use specific materials or processes with known characteristics.
The following are three chemical properties to consider when choosing an element to make coins:
It should malleable, ductile, and an extremely good conductor of both heat and electricity.
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Answer: It is a Double Displacement(Replacement) Reaction.
Explanation:
Answer: 16.32 g of 
as excess reagent are left.
Explanation:
To calculate the moles :
According to stoichiometry :
2 moles of 
require = 1 mole of
Thus 0.34 moles of will require=
of
Thus is the limiting reagent as it limits the formation of product and is the excess reagent.
Moles of left = (0.68-0.17) mol = 0.51 mol
Mass of 
Thus 16.32 g of as excess reagent are left.
