Answer:
The stoichiometric coefficient for aluminum is 2
Explanation:
Step 1: Data given
Aluminum metal = Al(s)
aqueous iron(III) oxide = Fe2O3(s)
aqueous aluminum oxide = Al2O3(s)
iron metal = Fe(s)
Step 2: The unbalanced equation
Al(s) + Fe2O3(s) → Al2O3(s) + Fe(s)
Step 3: Balancing the equation
On the left side we have 1x Al , on the right we have 2x Al (in Al2O3). To balance the amount of Al on both sides, we have to multiply Al (on the left side) by 2.
2Al(s) + Fe2O3(s) → Al2O3(s) + Fe(s)
On the left side we have 2x Fe (in Fe2O3) , on the right we have 1x Fe. To balance the amount of Fe on both sides, we have to multiply Fe (on the right side) by 2. Now the equation is balanced.
2Al(s) + Fe2O3(s) → Al2O3(s) +2Fe(s)
The stoichiometric coefficient for aluminum is 2
But with (added) speed
It can't be double the speed because 2x0=0
Answer: Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt. Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement.
Explanation: Hope this helps :)
Answer:
4200ml
Explanation:
Converting 3.1kg to g
3.1*1000= 3100g
Since density = mass/volume, then
volume = mass/ density
Therefore volume = 3100/0.74
= 4189.2ml
converting it to two significant figures
= 4200ml