Answer:
the first one which is A
Explanation:
the burning of fossil fuels causes both air pollution and water pollution
Answer:
![T \approx 5s](https://tex.z-dn.net/?f=T%20%5Capprox%205s)
Explanation:
From the question we are told that:
Power ![P=686600w Js^{-1}](https://tex.z-dn.net/?f=P%3D686600w%20Js%5E%7B-1%7D)
Work ![W=3430000 J](https://tex.z-dn.net/?f=W%3D3430000%20J)
Generally the equation for Time t is mathematically given by
![T=\frac{Work}{Power}](https://tex.z-dn.net/?f=T%3D%5Cfrac%7BWork%7D%7BPower%7D)
![T=\frac{W}{P}](https://tex.z-dn.net/?f=T%3D%5Cfrac%7BW%7D%7BP%7D)
Therefore
![T=\frac{3430000 }{686600}](https://tex.z-dn.net/?f=T%3D%5Cfrac%7B3430000%20%7D%7B686600%7D)
![T=4.996](https://tex.z-dn.net/?f=T%3D4.996)
![T \approx 5 s](https://tex.z-dn.net/?f=T%20%5Capprox%205%20s)
C)
<em>O</em><em>n</em><em>l</em><em>y</em><em> </em><em>v</em><em>a</em><em>lence</em><em> </em><em>electrons</em><em> </em><em>are involved in forming chemical bonds betwen two atoms</em><em>.</em>
Hope this helped you- have a good day bro cya)
(a) The mass of hydrogen sulfide produced in the reaction is 9.44 g.
(b) Water is the limiting reagent in the given reaction.
<h3>
Mass of hydrogen sulfide produced</h3>
Al2S3 + 6H2O ---> 2Al(OH)3 + 3H2S
mass of water in the reaction = 6(18 g/mol) = 108 g/mol
mass of hydrogen sulfide in the reaction: = 3(34) = 102 g/mol
108 g/mol of H2O ------- > 102 g/mol of H2S
10 of H2O -----------> ?
= 9.44 g
Aluminum sulfide will be completely consumed by the reaction while some fraction of water will remain. Thus, water is the limiting reagent in the given reaction.
Learn more about limiting reagents here: brainly.com/question/26905271
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You would get 15 Fe because you can multiply the reactants by eachother to get the fe.
Mark as braliest please.
Hope this helps!