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Svetllana [295]
3 years ago
12

A scientist investigates on two unknown solutions. Which is not a scientific experiment she can perform on the solutions?

Chemistry
2 answers:
Serga [27]3 years ago
6 0
As you can search and read the definition of a scientific experiment is the process of testing and finding the truth through this scientific method. Thus, all items are considered scientific experiment except for item "c" Ask her coworkers which solution they thick is better.
oee [108]3 years ago
5 0

Answer:

The correct answer is option c.

Explanation:

Scientific Experiment are defined set of ordered scientific steps followed by an individual to test with help of scientific knowledge.The result of scientific experiment is always objective.

Option a, b and d are the types of scientific experiment. Where as asking her coworker about which solution will be better is not as we cannot test their viewpoint son the particular solution available,

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10.
Andru [333]

Answer: 1.8 moles Fe and 2.7 moles CO_2 are produced.

Explanation:

The balanced chemical reaction is:

Fe_2O_3+3CO\rightarrow 2Fe+3CO_2  

According to stoichiometry :

3 moles of CO require 1 mole of Fe_2O_3

Thus 2.7 moles of CO will require=\frac{1}{3}\times 2.7=0.9moles  of Fe_2O_3

Thus CO is the limiting reagent as it limits the formation of product and Fe_2O_3 is the excess reagent.

As 3 moles of CO give = 2 moles of Fe  and 3 moles of CO_2

Thus 2.7 moles of CO will give =\frac{2}{3}\times 2.7=1.8moles  of Fe  and \frac{3}{3}\times 2.7=2.7moles  of CO_2

Thus 1.8 moles Fe and 2.7 moles CO_2 are produced.

7 0
3 years ago
Which formula represents a saturated hydrocarbon
GenaCL600 [577]
Saturated hydrocarbons are organic compounds that contain only single bonds between the carbon atoms. They are known to be the simplest organic compounds. They are termed as such because they are saturated with water. Examples are the alkanes (ethane, methane, propane, butane, etc.).
6 0
3 years ago
What is the relationship between relative size of an ion and its neutral atom and the charge on the ions?
Vsevolod [243]
<span>With the addition of an electron causing a negative charge, an ion is larger than normal but with loss of an atoms electron, the positive ion is smaller. if the atom loses an electron, the ion is relatively smaller than the atom and it becomes positive. if the atom gains an electron, the ion is relatively bigger than the atom and it becomes negative.</span>
6 0
3 years ago
Which of the following is a true statement about atomic nuclei?
Free_Kalibri [48]

Answer: they have a net positive charge

Explanation:

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3 years ago
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The answer is c i had it on my test today

3 0
3 years ago
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