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2 years ago

A plant that has both male and female reproductive structures is able to.

Chemistry

2 answers:

zhuklara [117]2 years ago

5 0

A plant that has both male and female reproductive structures can self pollinate

Nataly [62]2 years ago

4 0

<u><em>Hello!</em></u>

<h2></h2><h2>The Answer is: Self pollinate </h2><h2></h2>

<em><u>Thank you for asking this question!</u></em>

<em><u>It would be greatly appreciated if you thanked me and marked me as the brainliest!</u></em>

<em><u>Have an amazing day.</u></em>

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Chemistry help!<br><br><br><br><br>Zoom in to see better!!

Julli [10]

Answer:

2.5 moles of Al

Explanation:

We'll begin by calculating the number of mole in 127 g of Al₂O₃. This can be obtained as follow:

Mass of Al₂O₃ = 127 g

Molar mass of Al₂O₃ = 101.961 g/mol

Mole of Al₂O₃ =?

Mole = mass / molar mass

Mole of Al₂O₃ = 127 / 101.961

Mole of Al₂O₃ = 1.25 mole

Finally, we shall determine the number of mole of Al that reacted. This can be obtained as follow:

4Al + 3O₂ —> 2Al₂O₃

From the balanced equation above,

4 moles of Al reacted to produce 2 moles of Al₂O₃.

Therefore, Xmol of Al will react to produce 1.25 moles of Al₂O₃ i.e

Xmol of Al = (1.25 × 4)/2

Xmol of Al = 2.5 moles.

Thus, 2.5 moles of Al is needed for the reaction.

4 0

2 years ago

1. How much heat is required to melt 25.0 g of ice at 0°C?

tigry1 [53]

Answer: The heat required to melt 25.0 g of ice at $0^0C$ is 8350 Joules

Explanation:

Heat of Fusion tells us how much energy is needed to convert 1g of a solid to a liquid at the same temperature.

$Q=m\times L$

Q = Heat absorbed = ?

m = mass of ice = 25.0 g

L = Latent heat of fusion of ice = 334 J/g

Putting in the values, we get:

$Q=25.0g\times 334J/g=8350J$

Thus heat required to melt 25.0 g of ice at $0^0C$ is 8350 Joules

8 0

2 years ago

The focus of the earthquake is the:

Fynjy0 [20]

<span>point of failure of crustal rocks where the waves originate...b, i took the pennfost test and got it right.</span>

6 0

3 years ago

The work function of palladium (Pd) is 5.22 eV. What is the minimum frequency of light to observe the photoelectric effect from

Ivan

Answer:

1)4×10^13Hz

2) 9.95×10-9J

Explanation:

From the image attached, it is clear that the work function of the palladium metal must first be obtained in joules. Then, the frequency is obtained from E=hf.

The kinetic energy if the photoelectrons is obtained as the difference between the energy of the photon and the work function of the metal.

4 0

3 years ago

The standard heat of formation for solid copper is zero. True False

Vlada [557]

The answer is false.

3 0

3 years ago