Answer:
Fe is just the shortened version of Iron whereas Fe2+ is a positive ion,cation to be more specific
It's el mapa so the answer is incorrect. Even though mapa has an 'a' at the end, you will still use el.
<u>Answer:</u> The moles of water produced are 1.54 moles.
<u>Explanation:</u>
To calculate the number of moles, we use the equation:

Given mass of ethane = 15.42 g
Molar mass of ethane = 30.07 g/mol
Putting values in above equation, we get:

The chemical equation for the combustion of ethane follows:

By Stoichiometry of the reaction:
2 moles of ethane produces 6 moles of water
So, 0.513 moles of ethane will produce =
of water
Hence, the moles of water produced are 1.54 moles.
Answer:
the particles would not change. solids have definite shape and volume
Explanation: