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AnnZ [28]
3 years ago
12

(01.01 MC)

Chemistry
2 answers:
user100 [1]3 years ago
5 0

The dependent variable is plant height.

The <em>dependent variable</em> (plant height) is the <em>property that changes</em> as a result something the scientist does.

The <em>independent variable</em> is the <em>property that the scientist changes</em> systematically (the amount of CO_2) to see its effect.

The <em>number of plants</em> and the <em>types of plants</em> are <em>uncontrolled variables</em>. They may or may not affect the heights of the plants.

madreJ [45]3 years ago
3 0

Answer: It is the number of plants

Explanation:

The scientist does not care about the height of the plants but the quantity of them.

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2 years ago
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A chemist prepares a solution of barium chloride by measuring out of barium chloride into a volumetric flask and filling the fla
mezya [45]

The given question is incomplete. The complete question is:

A chemist prepares a solution of barium chloride by measuring out 110 g of barium chloride into a 440 ml volumetric flask and filling the flask to the mark with water. Calculate the concentration in mole per liter of the chemist's barium chloride solution. Round your answer to 3 significant digits.

Answer: Concentration of the chemist's barium chloride solution is 1.20 mol/L

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n\times }{V_s}

where,

n = moles of solute

V_s = volume of solution in L

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Therefore, the molarity of solution is 1.20 mol/L

8 0
3 years ago
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C is the answer.
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3 years ago
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s2008m [1.1K]

Answer:

5.15 moles

Explanation:

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6 0
2 years ago
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Arisa [49]

Answer:

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Explanation:

In short terms both the charge and the current are made up of charged particles that are always moving, they constantly move to well... stay charged, if they stopped, then the charge would fade until there is nothing left, and if there is nothing left -it means there would be no electricity to use

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