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viva [34]
4 years ago
13

Select the correct answer.

Chemistry
1 answer:
mariarad [96]4 years ago
3 0

Answer:

A.  How does changing the amount of water affect the growth of corn?

Explanation:

To test this question, all you have to do is buy corn, and keep them all in the same area with the same amount of sunlight, temperature, etc, and only change the amount of water each plant gets.

~

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+ oxygen carbon dioxide + water + energy <br><br> Sunlight <br> Sugar<br> Oxygen <br> Carbon
alukav5142 [94]
Sunlight will be the answer
may be




(if you will provide a little more information about your question.....

it will be easy to give the answer)
8 0
4 years ago
Which one of the following substances is a liquid fuel used in rocket engines?
kotegsom [21]

Must be C because the liquid fuel is Codium nitrate to be used in rocket engines

6 0
3 years ago
Read 2 more answers
A sample of metal has a mass of 24.54 g, and a volume of 5.02 mL. What is the density of this metal? g/cm
zmey [24]

Answer:

4.88 g / cm³

Explanation:

Density of a substance is given by the mass of the substance divided by the volume of the substance .

Hence , d = m / V

V = volume

m = mass ,

d = density ,

From the question ,

The mass of the metal = 24.54 g

The volume of the metal = 5.02 mL

Hence , by using the above formula ,and putting the corresponding values , the density is calculated as -

d = m / V

d = 24.54 g / 5.02 mL

d = 4.88 g /mL

The unit 1mL = 1 cm³

Hence ,

d = 4.88 g / cm³

4 0
4 years ago
When placed in a 200-mL square box, a substance has a spherical shape and has a volume of 75 mL. When placed in a 200-mL circula
Anastasy [175]

Answer:

a. Solid

Explanation:

<em>Solid substances do not change size or shape according to their containers</em>. In other words, solid substances keep their size and shape.

<em>Liquid and gas substances take the shape of their container</em>, so any of them would be square-shaped when put in a square box, and they would be spherical shaped when put in a spherical container.

3 0
3 years ago
Is nitrogen gas a pure substance or a mixture
Verizon [17]
Its a mixture because nitrogen gas is air. Air is homogeneous mixture
3 0
3 years ago
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