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3 years ago

What is the chemical equation of photosynthesis

2 answers:

8 0

A simple word equation is carbon dioxide + water —> glucose + oxygen + water
A balanced chemical equation for the process can be 6CO2 + 6H2O —> C6H12O6 + 6O2. Overall, photosynthesis uses light energy to convert carbon dioxide into a carbohydrate.
Hope this helps!

Zinaida [17]3 years ago

4 0

carbon dioxide + electron donor + light energy ==> carbohydrate + oxidized electron donor + water

CO2 + 2H2A + photons ==> [CH2O] + 2A + H2O

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A container of gas is initially at 0.25 atm and 0 ˚C. What will the pressure be at 125 ˚C?

Pani-rosa [81]

Answer:

0.37atm

Explanation:

Given parameters:

Initial pressure = 0.25atm

Initial temperature = 0°C = 273K

Final temperature = 125°C = 125 + 273 = 398K

Unknown:

Final pressure = ?

Solution:

To solve this problem, we use a derivative of the combined gas law;

$\frac{P1}{T1}$ = $\frac{P2}{T2}$

P and T are pressure and temperature

1 and 2 are initial and final values

$\frac{0.25}{273}$ = $\frac{P2}{398}$

P2 = 0.37atm

3 0

2 years ago

Calculate the number of moles in 9.22 X 10^23 atom iron

sveta [45]

1.53 moles of Fe is your solution hope it helps!

7 0

2 years ago

The half life for the decay of carbon-14 is 5.73 x 10 years. Suppose the activity due to the radioactive decay of the carbon-14

Elena-2011 [213]

Answer:

Age of the atifact is $4.2\times 10^{2}$ years

Explanation:

For first -order radioactive decay- $A_{t}=A_{0}(\frac{1}{2})^{\frac{t}{t_{\frac{1}{2}}}}$
$A_{t}$ represents activity of radioactive nuclide after t time, $A_{0}$ represents initial activity of radioactive nuclide and $t_{\frac{1}{2}}$ represents half-life
Here, $A_{t}=19Bq$ , $A_{0}=20Bq$ and $t_{\frac{1}{2}}=5.73\times 10^{3}years$

Plug-in all the given values in the above equation-

$19=20\times (\frac{1}{2})^{\frac{t}{5.73\times 10^{3}}}$

or, $t=4.2\times 10^{2}$

So, age of the atifact is $4.2\times 10^{2}$ years

6 0

3 years ago

Which statement is true?

MissTica

Answer:

The correct answer is in an exothermic reaction the energy of the product is less than the energy of the reactants.

Explanation:

Exothermic reaction is a type of reaction that generates heat.As a result in case of an exothermic reaction the energy of the reactant is more than the energy of the product.

That"s why the enthalpy change in an exothermic reaction is always positive .

8 0

3 years ago

Read 2 more answers

3. Identify the oxidizing agent in each of the fol-

Oxana [17]

Answer:

Explanation:

Oxidizing agents:

Oxidizing agents oxidize the other elements and itself gets reduced.

Reducing agents:

Reducing agents reduced the other element are it self gets oxidized.

Oxidation:

Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.

Reduction:

Reduction involve the gain of electron and oxidation number is decreased.

a) Cu²⁺ (aq) + Mg(s) + Cu(s) + Mg²⁺(aq)

Copper is oxidizing agent it accept two electrons from magnesium and oxidize the Mg and itself get reduced.

b) Fe₂O₃(s) + 3CO(g) → 2Fe(l) + 3CO₂(g)

In this reaction iron is oxidizing agent because iron itself reduced from +3 to 0.

5 0

3 years ago