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aleksley [76]
3 years ago
7

How should an ethical scientist response if an experiment does not confirm a hypothesis? Question 2 options:Revise the hypothesi

s and develop a new experiment to test it.Alter the data so that they conform to what we already know.Publish the data without any conclusions.Perform the experiment again until it confirms the hypothesis.
Josh performs an experiment to see how different brands of fertilizer will affect the growth of tomato plants.  The amount of sun, amount of water, & type of soil is the same for every plant.  The only thing he changes is the type of fertilizer used on each plant.  The fertilizer is the ___________ variable.Question 12 options:independentdependentconstanthypothesis
Chemistry
1 answer:
miv72 [106K]3 years ago
7 0
For the first question, its revise the hypothesis and develop a new experiment to test it

For the second question, the fertilizer independent variable
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In a chemical equation, which symbol should be used to indicate that a substance is in solution?
lisov135 [29]
Example :

2FeCl_3_{(aq)}+2KI_{(aq)}=2FeCl2_{(aq)}+2KCl_{(aq)}+I_2_{(s)}

If you use the subscript (aq) (=aquaris) , this means that the substance is in a solution.

Subscripts:
-aq-this means that the substance is in a solution
-s-this means that the substance is a solid(or precipitate)
-l-this means that the substance is a liquid
-g-this means that the subtance is a gas

6 0
3 years ago
Read 2 more answers
What is 1 mol / 66.04g ​
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Answer:

15.142338 mol/kg

Explanation:

(1 mole) / (66.04 grams)

5 0
2 years ago
What is the name of the polyatomic in MgSO4?
blsea [12.9K]

Answer:

Magnesium Sulfate

Explanation:

4 0
2 years ago
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The process of cellular respiration occurs in
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Answer: plants and animal cells

Explanation:

7 0
2 years ago
A chemistry student must write down in her lab notebook the concentration of a solution of sodium hydroxide. The concentration o
HACTEHA [7]

Answer:

1.099 gmL¯¹ ≈ 1.1 gmL¯¹

Explanation:

From the question given above, the following were obtained:

Mass of empty cylinder = 9.5 g

Mass Cylinder + NaOH = 31.92 g

Volume of solution = 20.4 mL

Concentration of solution =?

Next, we shall determine the mass of sodium hydroxide, NaOH. This can be obtained as as illustrated below:

Mass of empty cylinder = 9.5 g

Mass Cylinder + NaOH = 31.92 g

Mass of NaOH =?

Mass of NaOH = (Mass Cylinder + NaOH) – (Mass of empty cylinder)

Mass of NaOH = 31.92 – 9.5

Mass of NaOH = 22.42 g

Finally, we shall determine concentration of the solution as follow:

Mass of NaOH = 22.42 g

Volume of solution = 20.4 mL

Concentration of solution =?

Concentration = mass /volume

Concentration of solution = 22.42 / 20.4

Concentration of solution = 1.099 gmL¯¹ ≈ 1.1 gmL¯¹

Therefore, the concentration of the solution is 1.1 gmL¯¹

3 0
3 years ago
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