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Kobotan [32]
3 years ago
6

Green plants use light from the sun to drive photosynthesis, a chemical reaction in which liquid water and carbon dioxide gas fo

rm aqueous glucose and oxygen gas. Calculate the molecules of water needed to produce ___ of oxygen. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits.
Chemistry
1 answer:
Hunter-Best [27]3 years ago
4 0

Photosynthesis is the process in which green plants and some other organisms that makes use of the energy from the sun, converts carbon dioxide and water into glucose (a sugar) and oxygen.

Equation

6 CO2 + 6 H2O → C6H12O6 + 6 O2

The number of moles of oxygen that can be obtained from 25g of water is

= 25g/ 6( (2*1)+(16) )= 25/108

= 0.23mol

Therefore 0.23moles of water yields 0.23 moles of oxygen

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Write a chemical equation for LiOH(aq) showing how it is an acid or a base according to the Arrhenius definition.
goldenfox [79]

Answer:

LiOH(aq) → Li⁺(aq) + OH⁻(aq). 

4 0
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I would say : D) Newton's 3rd law of motion.

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What happens to shape of cells when placed in hypertonic salty solutions
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2 years ago
Arunner sprints 550 feet in 100 seconds. If the runner can hold this pace for an hour
Alex
<h3>Answer:</h3>

Distance traveled is 9.055 km

<h3>Explanation:</h3>

Speed is given by dividing distance by time.

The distance given is 550 ft and the time is 100 seconds.

Therefore; Speed = 550 ft ÷ 100 sec

                              = 5.5 ft/sec

We can calculate the distance the runner covered in one and half hour.

Time = 1.5 hours

But 1 hour = 3600 sec

1.5 hours = (1.5 × 3600)

               = 5400 sec

Distance is given by multiplying speed and time

Thus; Distance = 5.5 ft/sec × 5400 sec

                         = 29700 ft

But; 1 m = 3.28 ft

1000 m = 1 km

Therefore; 29700 ft will be equivalent to

 = 29700 ft/3.28 ft

= 9054.878 M

but 1000 m = 1 km

Thus, distance = 9054.878 ÷ 1000 m

                        = 9.055 km

6 0
2 years ago
What is the oxidation state of S in so ??​
Marina86 [1]

Answer:

+2

Explanation:

If a compound SO existed, we would identify the oxidation state of sulfur using the following logic:

  • oxygen is more electronegative than sulfur, so it's more electron-withdrawing and it should have a negative oxidation state producing a positive oxidation state for sulfur;
  • oxygen typically has an oxidation state of -2;
  • we may then apply the fact that SO is expected to be a molecule with a net charge of 0;
  • if the net charge is 0 and the oxidation state of oxygen is -2, we may set the oxidation state of S to x;
  • write the equation for the net charge of 0 by adding all individual charges of the two atoms: x + (-2) = 0;
  • hence, x = 2.

That said, in this hypothetical compound S would have an oxidation state of +2.

6 0
3 years ago
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