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Lubov Fominskaja [6]
2 years ago
6

a student investigated the factors that affect math grades. Which statement from the lab report best represents a conclusion for

this investigation?

Chemistry
1 answer:
Ahat [919]2 years ago
8 0

Students who spend less time studying after school, get lower math grades. Option D.

<h3>What is a research investigation?</h3>

In science, a research investigation is an organized inquiry made into phenomena in order to logically understand them. The investigation follows an established procedure, otherwise known as the scientific method.

The original investigation by the student has to do with factors that affect math grades. Conclusions are usually drawn from the aim and objectives of the research. Thus, the conclusion must relate to the aim of the research in a logical way.

The only option that fits in logically going by the aim of the investigation is that students who spend less time studying after school, get lower math grades.

More on research investigations can be found here: brainly.com/question/4118656

#SPJ1

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Suppose that a 1.0-L reaction vessel initially contains 1.0 mol of O3 and 1.0 mol of O2. What fraction of the O3 will have react
NemiM [27]

Answer:

Explanation:

given reaction

                        2O₃        ⇄      3O₂

 initial                1                      1

    final           1-x                   1+ 1.5x

rate of reaction = k  [ O₃ ]² / [ O₂ ]

initial rate = k . 1² / 1 = k

final rate = k (1-x )² / (1+ 1.5x) = k/2

(1-x )² / (1+ 1.5x) = 1/2

2x² - 5.5 x + 1 = 0

x = 0.196

So fraction of ozone reacted = .196

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3 years ago
Mass box A = 10 grams; Mass box B = 5 grams; Mass box C— made of one A and one B.
Murljashka [212]

Answer:

Options for g Of A: 10, 20, or 30

Options for g of B: 10, 30, or 20

Explanation:

SORRY IF IM WRONG

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3 years ago
All man-made and most carbon-based compunds are___ . 1. organic 2.inorganic
KonstantinChe [14]

Answer:

2. Inorganic

Explanation:

All man-made and most carbon-based compounds are inorganic

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4 years ago
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4 0
3 years ago
What volume of water is needed to make up a 6.00% (m/v) solution of copper (II) sulphate when 12.0 g of it will be added to wate
8_murik_8 [283]

Answer:

200 mL of water is needed to make up a 6.00% (m/v) solution of copper (II) sulphate when 12.0 g of it will be added to water.

Explanation:

The solution is the result of the mixture between the solute, which is the substance that dissolves, and the solvent, which is the substance in which a solute dissolves. That is, a solution (or solution) is a mixture of two or more components, perfectly homogeneous since each component is intimately mixed with the other.

The concentration of solutions is the amount of solute contained in a given amount of solvent or solution. A unit of concentration is the percent weight to volume.

The percent weight to volume is the percentage ratio between the weight of the solute and the volume of the solution. It is calculated as:

Percent =\frac{mass of solute}{volume of solution} *100

Mass is measured in grams, while volume is measured in mL.

In this case:

  • Percent weight to volume= 6%
  • mass of solute= 12 g
  • volue of solution= ?

Replacing:

6=\frac{12 g}{volume of solution} *100

Solving:

volume of solution*6= 12 g*100

volume of solution=\frac{12 g}{6} *100

volume of solution= 200 mL

<u><em>200 mL of water is needed to make up a 6.00% (m/v) solution of copper (II) sulphate when 12.0 g of it will be added to water</em></u>

<u><em> </em></u>

<u><em></em></u>

8 0
3 years ago
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