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3 years ago

18. Which statement about photosynthesis is FALSE?

Chemistry

1 answer:

joja [24]3 years ago

7 0

<h3>your query : </h3>

Which statement about photosynthesis is FALSE?

Answer:

b. Oxygen is needed as a reactant to produce

glucose is the incorrect statement here

Explanation:

plants uses simple raw materials to prepare their food , which includes water ( H2O ) and Carbon dioxide ( CO2 ).

and traps sunlight by Green pigments known as chlorophyll and stores these energy in bonds of glucose molecules

so ,

after this reaction glucose and oxygen is formed as products

● hence we conclude that Oxygen is not needed as a reactant to produce glucose , oxygen is the bi product formed during photosynthesis.

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If your car gets 30.3 mi/gal, how many gallons of gasoline would you use if you drove 506.3 miles? 1 mile = 5280 ft (exactly) In

Salsk061 [2.6K]

Answer: 16.7 gallon

Explanation:

Given: The car can drive 30.3 miles when 1 gallon of gasoline is used.

Distance covered = 506.3 miles

Thus for 30.3 miles, the amount of gasoline used= 1 gallon

For 506.3 miles, the amount of gasoline used= $\frac{1}{30.3}\times 506.3=16.7gallon$

Thus the amount of gasoline used is 16.7 gallons.

4 0

3 years ago

Read 2 more answers

If 16.5g of c6h14o2 are reacted vwith .499 mol of o2. How many moles of co2 should be produced

Fed [463]

Answer:

moles of carbon dioxide produced are 410.9 mol.

Explanation:

Given data:

Mass of C₆H₁₄O₂ = 16.5 g

Moles of O₂ = 499 mol

Moles of CO₂ = ?

First of all we will write the balance chemical equation.

2C₆H₁₄O₂ + 17O₂ → 14CO₂ + 12H₂O

moles of C₆H₁₄O₂ = mass × molar mass

moles of C₆H₁₄O₂ = 16.5 g × 118 g/mol

moles of C₆H₁₄O₂ = 1947 mol

Now we compare the moles of CO₂ with moles of O₂ and C₆H₁₄O₂ from balance chemical equation.

O₂ : CO₂

17 : 14

499 : 14/17× 499 = 410.9 moles

C₆H₁₄O₂ : CO₂

2 : 14

1947 : 14/2× 1947 = 13629 moles

Oxygen will be limiting reactant so moles of carbon dioxide produced are 410.9 mol.

5 0

3 years ago

Read 2 more answers

C12H22011+1202-->12CO2+11H20

kogti [31]

Answer:

0.185moles

Explanation:

Given parameters:

Volume of O₂ = 49.8L

Unknown:

Number of moles of sucrose required = ?

Solution:

We can assume that the reaction takes place at standard temperature and pressure.

From this, we can find the number of moles of oxygen that reacted and extrapolate to that of sucrose.

Chemical equation;

C₁₂H₂₂0₁₁ + 120₂ → 12CO₂ + 11H₂0

Number moles = $\frac{volume of gas}{22.4}$ at STP

Number of moles of oxygen gas = $\frac{49.8}{22.4}$ = 2.22moles

12 moles of oxygen gas combines with 1 mole of sucrose

2.22 moles of oxygen gas will combine with $\frac{2.22}{12}$ = 0.185moles

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3 years ago

The blank of an element is the average mass of all isotopes of that element

Oxana [17]

Atomic mass is the answer

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3 years ago

On x

Lena [83]

Answer:

Explanation:

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2 years ago