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mafiozo [28]
2 years ago
13

How are the functions of a flower's stamen and pistil related to reproduction?

Chemistry
1 answer:
Alina [70]2 years ago
6 0

Answer: the essential parts of a flower

Explanation:

are engaged with seed creation. In the event that a blossom contains both useful stamens and pistils, it is known as an ideal bloom, regardless of whether it doesn't contain petals and sepals. On the off chance that either stamens or pistils are deficient with regards to, the blossom is called imperfect.

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A mixture containing 0.477 mol he(g), 0.265 mol ne(g), and 0.115 mol ar(g) is confined in a 7.00-l vessel at 25 ∘c. part a calcu
enot [183]
Q1)
we can use the ideal gas law equation to find the total pressure of the system ;
PV = nRT
where P - pressure
V - volume - 7 x 10⁻³ m³
n - number of moles 
total number of moles - 0.477 + 0.265 + 0.115 = 0.857 mol
R - universal gas constant - 8.314 Jmol⁻¹K⁻¹
T - temperature in K - 273 + 25 °C = 298 K
substituting the values in the equation 
 P x 7 x 10⁻³ m³ = 0.857 mol x 8.314 Jmol⁻¹K⁻¹ x 298 K
P = 303.33 kPa
1 atm = 101.325 kPa
Therefore total pressure - 303.33 kPa / 101.325 kPa/atm = 2.99 atm

Q2)
partial pressure is the pressure exerted by the individual gases in the mixture.
partial pressure for each gas can be calculated by multiplying the total pressure by mole fraction of the individual gas.

total number of moles - 0.477 + 0.265 + 0.115 = 0.857 mol
mole fraction of He - \frac{0.477}{0.857}  = 0.557
mole fraction of Ne - \frac{0.265}{0.857} =   0.309
mole fraction of Ar - \frac{0.115}{0.857}  = 0.134
partial pressure - total pressure x mole fraction
partial pressure of He - 2.99 atm x 0.557 = 1.67 atm
partial pressure of Ne - 2.99 atm x 0.309 = 0.924 atm
partial pressure of Ar - 2.99 atm x 0.134 = 0.401 atm
6 0
3 years ago
I only need help in the bottom section? Please someone help me please?
kherson [118]
Energy in the nucleus of an atom of uranium: Nuclear energy
Energy of a moving object: Kinetic Energy 
Energy stored in chemical bonds: Potential Energy
Energy emitted from light bulb: Radiant Energy
Energy in a battery: Stored Energy
Energy in our food: Chemical Energy
Energy emitted from a radio: Electromagnetic Energy
Energy affected by mass and speed: Kinetic Energy
Energy affected by position and condition: Potential Energy
Energy from our star that some homes use for electricity: Radiant Energy
I hope this was found helpful!
I was happy to assist you with your Homework :)
4 0
3 years ago
Read 2 more answers
Are hydroxides a type of oxide or are oxides and hydroxides two different things entirely?
Alexandra [31]

Answer:

Mark me as Brainilist please!!

Explanation:

Oxides and their hydroxide counterparts made possible the industrial innovations we live in. Indeed, steel is a member of this family. Earth's crust contains them in vast quantities, making them the second most common element.

On a molecular scale, you would find that each oxygen atom is coupled with metal or semimetal atoms that fill in the gaps between them in oxide minerals. Oxides are divided into two groups: simple oxides, with a single metal or semimetal added, and complex oxides, where several metals can be incorporated into the molecule's structure. Hydroxides, on the other hand, are composed of metal ions attached to a highly reactive hydroxide ion (OH). Minerals formed by hydroxide are softer and less dense than oxides and usually form at lower temperatures.

8 0
3 years ago
PLEASE ANSWER!!!!<br><br><br> what is mass and volume????
azamat
Mass and volume are two units used to measure objects. Mass- the amount of matter an object contains and volume- how much space it takes up
6 0
3 years ago
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When aluminum, Al, metal is dipped in an aqueous solution of hydrochloric acid, HCl, hydrogen gas, H2, is produced with the form
Nataliya [291]

Answer:

Al(s) + 3HCl(aq) → AlCl₃(aq) + 3/2H₂(g).

Explanation:

  • We should apply the law of conversation of mass to balance any chemical reaction; that the no. of atoms in the reactants side is equal to that in the products side.

So, the balanced equation is:

<em>Al(s) + 3HCl(aq) → AlCl₃(aq) + 3/2H₂(g).</em>

7 0
3 years ago
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