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VARVARA [1.3K]
3 years ago
8

A student will measure and record the growth of two flowering plants every day for 28 days. Plant A will be watered and fertiliz

ed, Plant B will only be watered. The student predicts fertilizer added to the soil leads to taller flowering plants. Scientific conclusions are based on scientific evidence, what evidence would support the student’s prediction? A) Plant A and Plant B both die B) Plant A grows taller than Plant B C) Plant B grows taller than Plant A D) Plant A and Plant B grow to the same height
Chemistry
2 answers:
mestny [16]3 years ago
5 0
The conclusion that would support the students prediction is B) Plant "A" grows taller than Plant "B".
If the student thinks that adding fertilizer to the plant would help it grow then answer B) would make the most sence.
Jlenok [28]3 years ago
4 0

Answer:

The correct answer will be option-B

Explanation:

In the given question, the experiment was performed to test "if adding the fertilizer will increase the growth of plants" in terms of height and measured the height of the plants.

The experimental group (plant A) was provided with the water and fertilizer whereas the control group (plant B) was provided only water and the height of the plant was recorded which showed that experimental group showed more height.

This can be explained as the fertilizer adds the nutrients to the soil which the plants lack and since the plants get enough amount of fertilizer. Thus, Plant A grows taller than plant  B.

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5 0
2 years ago
A stock solution of HNO3 is prepared and found to contain 13.5 M of HNO3. If 25.0 mL of the stock solution is diluted to a final
salantis [7]

Answer : The correct option is, (C) 0.675 M

Explanation :

Using neutralization law,

M_1V_1=M_2V_2

where,

M_1 = concentration of HNO_3 = 13.5 M

M_2 = concentration of diluted solution = ?

V_1 = volume of HNO_3 = 25.0 ml  = 0.0250 L

conversion used : (1 L = 1000 mL)

V_2 = volume of diluted solution = 0.500 L

Now put all the given values in the above law, we get the concentration of the diluted solution.

13.5M\times 0.0250L=M_2\times 0.500L

M_2=0.675M

Therefore, the concentration of the diluted solution is 0.675 M

8 0
3 years ago
How many moles of oxygen are produced when 8 moles of Al are produced?
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6 0
3 years ago
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Determine the mass in grams of 5.49 × 10²¹ atoms of arsenic. (The mass of one mole of arsenic is 74.92 g.)
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Answer:

0.67 g

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We know that 1 mole of an element is 6.02 x 10^(23) atoms

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Thus;

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one mole of arsenic = 74.92 g.

Thus, 9 × 10^(-3) moles = 9 × 10^(-3) × 74.92/1 = 0.67428 g ≈ 0.67 g

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