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Diano4ka-milaya [45]
3 years ago
13

HURRY!! 30 points!!

Chemistry
1 answer:
AnnZ [28]3 years ago
3 0

Answer:

The amount of each element that begins photosynthesis equals the amount of each element that is produced

Explanation:

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Part a the sun produces energy via fusion. one of the fusion reactions that occurs in the sun is 411h→42he+201e how much energy
Orlov [11]
The equation for the nuclear fusion reaction is,
4 ¹₁H → ₂⁴He + 2 ₁⁰e
Calculation of mass defect,
Δm = [mass of products - mass of reactants]
      = 4(1.00782) - [4.00260 + 2(0.00054858)]
      = 0.0275828 g/mole
Given that,
Mass of Hydrogen-1 = 2.58 g
The no. of moles of ₁¹H = 2.58 g / 1.00782 = 2.56 moles
Therefore, the mass defect for 2.58 g of ₁¹H is, 
= 2.56 moles * (0.0275828 g / 4) = 0.01765 x 10⁻³ kg
Energy for (0.01765 x 10⁻³ kg) is, 
= (0.01765 x 10⁻³ kg) (3.0 x 10⁸)² = 1.59 x 10¹² J
4 0
3 years ago
Read 2 more answers
What is the missing part of the equation below?
Illusion [34]
 
<span>A. Missing part is ⁴He₂

You can also calculate it by adding/subtracting for atomic mass & atomic numbers

Hope this helps!
</span>
3 0
3 years ago
Read 2 more answers
Write the balanced equation for the decomposition of hydrogen peroxide to form water and oxygen.
Lerok [7]
Hydrogen peroxide is H2O2, while water is H2O and oxygen (a diatomic gas) is O2. The (unbalanced) reaction is:
H2O2 --> H2O + O2
Notice that the H2O2 has 2 H atoms, and so does H2. This means that both must have the same coefficients, and we can adjust the coefficient of O2. Since H2O2 has 2 O atoms, and H2O has 1, we multiply O2 by 1/2:
H2O2 --> H2O + (1/2)O2
This has an equivalent number of H and O atoms on either side, but we want the coefficients to be whole numbers, so we multiply everything by 2:
2H2O2 --> 2H2O + O2
7 0
2 years ago
Can someone help me please
zhuklara [117]

Answer:

unicellular means having one cell and multicellular means having many cell

example of unicellular organism are euglena,amoeba and paramecium

example of multicellular are man,mushroom and

dog

Explanation:

hope it helps you

8 0
2 years ago
Why is acetic acid a liquid at room temperature? give reason.
Reptile [31]

Answer:

Acetic acid is a liquid at room temperature if room temperature is 20 C or above. ... Pure acetic acid is often called glacial because at a low temperature it solidifies and looks like ice. The melting point is 16.6C so not much below room temp.

Explanation:

3 0
2 years ago
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