subject
Chemistry, 23.11.2019 03:31 cj31150631

Why is photosynthesis an endothermic reaction?
the heat content (q) of the reaction is negative.
a large amount of energy is released into the surroundings.
a large amount of energy is required to activate the reaction.
the temperature of the surroundings increases.
there is no exchange of energy between the system and the surroundings.

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 21.06.2019 17:50
An aqueous solution of potassium hydroxide is standardized by titration with a 0.194 m solution of hydrobromic acid. if 25.2 ml of base are required to neutralize 24.2 ml of the acid, what is the molarity of the potassium hydroxide solution? m potassium hydroxide
Answers: 2
question
Chemistry, 22.06.2019 22:10
Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water
Answers: 3
question
Chemistry, 23.06.2019 00:30
Element j is 1s 2s 2p 3s . (i) how many unpaired electrons does j have? (ii) is j a good oxidizing agent or a reducing agent? (iii) state reason for the answer.
Answers: 1
question
Chemistry, 23.06.2019 03:50
How many liters of oxygen gas, at standardtemperature and pressure, will react with 35.8 grams ofiron metal? 4 fe (s) + 3 o2 (g) โ†’ 2 fe2o3 (s)
Answers: 3
You know the right answer?
Why is photosynthesis an endothermic reaction?
the heat content (q) of the reaction is negati...
Questions
question
Mathematics, 17.09.2020 02:01
question
Mathematics, 17.09.2020 02:01
question
Mathematics, 17.09.2020 02:01
question
Mathematics, 17.09.2020 02:01
question
English, 17.09.2020 02:01
question
Mathematics, 17.09.2020 02:01
question
Mathematics, 17.09.2020 02:01
question
Physics, 17.09.2020 02:01
question
Chemistry, 17.09.2020 02:01
question
Mathematics, 17.09.2020 02:01
question
Mathematics, 17.09.2020 02:01
question
Mathematics, 17.09.2020 02:01
question
Mathematics, 17.09.2020 02:01
question
Mathematics, 17.09.2020 02:01
question
Social Studies, 17.09.2020 02:01
question
Mathematics, 17.09.2020 02:01
question
Chemistry, 17.09.2020 02:01
question
Mathematics, 17.09.2020 02:01
question
Physics, 17.09.2020 02:01
question
Mathematics, 17.09.2020 02:01
Questions on the website: 13722363