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alukav5142 [94]
2 years ago
15

A houseplant is placed on a window sill that gets direct, bright sunlight

Chemistry
1 answer:
Molodets [167]2 years ago
7 0

Answer:

D. Phototropism

Explanation:

Plants, like every other living organism, responds to external stimulus. In this question, the stimulus is LIGHT from the sun entering through the window sill. The plant is responding positively to the light stimuli by growing towards the direction where the light is coming from. This exhibit is called PHOTOTROPISM.

Phototropism, comes from two words viz photo- meaning light and tropism- meaning movement. Hence, phototropism is the growth of an organism (plant in this case) in response to a light stimulus. The case described in this question is POSITIVE PHOTOTROPISM because the growth occurs towards the light source.

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Why less electro negative elements are taken as central atom​
sladkih [1.3K]

Answer:

The least electronegative elements in the center of lewis structures because an atom in the central position shares more of its electrons than does a terminal atom. Atoms with higher electronegative are generally more reluctant to share their electrons.

Explanation:

3 0
2 years ago
Match the solutions to the descriptions of the freezing points.a. One mole of the ionic compound Na3PO4 dissolved in 1000 g H2O
rosijanka [135]

Explanation:

Depression in Freezing point

= Kf × i × m

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Since molality and Kf remain the same

depression in freezing point is proportional to i

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i=1 for C2h6O

i= 3 for MgCl2 ( MgCl2--------> Mg+2+ 2Cl-)

So the freezing point depression is highest for MgCl2 and lowest for C2H6O

so freezing point of the solution = freezing point of pure solvent- freezing point depression

since MgCl2 has got highest freezing point depression it will have loweest freezing point and C2H6O will have highest freezing point

5 0
2 years ago
Joseph drives 25miles North in 15 minutes then he drives 40 miles east in 30 minutes, then he uses cruise control option for 1 h
Musya8 [376]

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Explanation:

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i.e Average speed = (Total distance / Time taken)

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= 150 miles

Total time taken = ( 15 minutes + 30 minutes + 1 hour + 15 minutes) = 120 minutes

Since 60 minutes = 1 hour, the total time taken is 120 minutes

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= (150 miles / 120 minutes)

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Thus, Joseph drove with an average speed of 1.25 miles per minute.

7 0
2 years ago
True or false The atomic number of an element is always more than the mass number of that element.
Veseljchak [2.6K]
The sentence is true
8 0
3 years ago
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Anastasy [175]

Answer:

I think it would be false

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All things have a unique freezing/melting point

6 0
3 years ago
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