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zhannawk [14.2K]
3 years ago
14

25 facts about azalea flower

Chemistry
1 answer:
Umnica [9.8K]3 years ago
7 0
Azaleas’ are also known as the ‘Royalty of the Garden’, and are shrubs that bloom in from autumn to spring, depending on the variety.

Azaleas are either deciduous or evergreen, depending on the species, and generally like to grow under the shade of trees.

Azaleas are from the family ‘Ericaceae’, which is the family of heaths or heathers, and belong to the genus ‘Rhododendron’, which are a group of woody plants.

Azaleas grow up to 2.5 meters (8.2 feet) tall, although some only grow to half that height.

Azalea nectar and leaves are highly poisonous, and in the past, have been seen as a death threat if the flowers have been given in a black vase.

Places in Japan, Korea and the United States have festivals to celebrate azaleas.

Azaleas are mostly native to North America, and eastern parts of Asia, and the American species are generally deciduous, while the Asian species are generally evergreen.

Azalea flowers come in white, pink, mauve, purple, red, orange and yellow in colour, and the single varieties generally have 5 petals, but doubles can have up to 30.

Azaleas are popular garden plants, although many people do not know how to grow them properly, as they require specific growing conditions, which include the need for acidic soil.

Over 10,000 different cultivars of azaleas have been recorded and the plant and flowers are very similar to rhododendrons in appearance, so it is often difficult to tell them apart.

Could only find 10 sorry :)
Hope it still helps
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Can somebody help me, please!
zavuch27 [327]

Answer:

Rubidium-85=61.2

Rubidium-87=24.36

Atomic Mass=85.56 amu

Explanation:

To find the atomic mass, we must multiply the masses of the isotope by the percent abundance, then add.

<u>Rubidium-85 </u>

This isotope has an abundance of 72%.

Convert 72% to a decimal. Divide by 100 or move the decimal two places to the left.

  • 72/100= 0.72      or        72.0 --> 7.2 ---> 0.72

Multiply the mass of the isotope, which is 85, by the abundance as a decimal.

  • mass * decimal abundance= 85* 0.72= 61.2

Rubidium-85=61.2

<u>Rubidium-87</u>

This isotope has an abundance of 28%.

Convert 28% to a decimal. Divide by 100 or move the decimal two places to the left.

  • 28/100= 0.28       or        28.0 --> 2.8 ---> 0.28

Multiply the mass of the isotope, which is 87, by the abundance as a decimal.

  • mass * decimal abundance= 87* 0.28= 24.36

Rubidium-87=24.36

<u>Atomic Mass of Rubidium:</u>

Add the two numbers together.

  • Rb-85 (61.2) and Rb-87 (24.36)
  • 61.2+24.36=85.56 amu
4 0
3 years ago
Complete the statement about the environment and its components.
borishaifa [10]

the environment is Healthy

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A nuclear power plant operates at 40.0% efficiency with a continuous production of 1042 MW of usable power in 1.00 year and cons
Sergio039 [100]

Answer:

3.00 x 10^-11 joules / atom of U-235

Explanation:

We know that the formula for Power = Work done (w)/Time (t)

We need to get the joules from power , since Joules is the SI unit of work.

From the formula P = W/t

W = Power (P) * Time (t)

The SI unit for Time is seconds, hence we change 1 year in seconds

1yr * 365 days/yr * 24hrs/day * 60mins/hr * 60 secs/min = 31536000 secs

It was stated in the question that the plant operates at an efficiency of 40%,

Thus to get the true power we divide the power provided in the question by 0.4 or 40%

= X(0.4) = 1042MW

True Power X = 1042/0.4 = 2605MW

Thus true power = 2605 * 10^6 Watts

Now we have the time in seconds and true power in Watts, we then find the work done.

From our above formula P = W/t

W = P*t = (2605* 10^6) (31536000) =

Finally, we can solve for our energy (work):

P = W / T        PT = W = (2880x10^6) (31536000) = 8.22 x 10^16 joules

We then calculate the amount of energy released by only 1 single uranium-235 atom.

= 8.22 x 10^16 joules / 1.07x10^6 g U-235 (235 g / 1 mol)(1 mol/6.0210^23 atoms)

= 3.00 x 10^-11 joules / atom of U-235

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3 years ago
Make a checklist of eight good characteristics of a experiment.
natka813 [3]
I could only find 7!

- independent variable
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