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rodikova [14]
3 years ago
10

The diagram shows light interacting with an object. Which object is the light most likely striking?

Chemistry
2 answers:
Tamiku [17]3 years ago
6 0

a window

Explanation:

The diagram attached that shows light interacting with an object shows that the object is most definitely a window.

The window must have been made up of glass.

  • The wave path completely describes refraction of waves as they cross the boundary between two medium.
  • The light moves from a less dense to a denser medium and this causes the velocity to slow down.
  • On coming from the other side, the wave rays are attenuated.

learn more:

Refraction brainly.com/question/12370040

Reflection and diffraction brainly.com/question/3183125

#learnwithBrainly

Setler79 [48]3 years ago
6 0

Answer:

a

Explanation:

just took the test

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An unknown compound containing only C and H was burnt, yielding 10.2 g of CO2 and 6.3 g of H2O. With a molecular weight of about
Lisa [10]

Answer:

C_2H_6

Explanation:

Hello.

In this case, we can see that the mass of carbon of the unknown compound comes from the yielded mass of carbon dioxide, thus, we compute the moles of carbon as follows:

m_C=10.2gCO_2*\frac{1molCO_2}{44gCO_2}*\frac{1mol C}{1molCO_2}=0.232 molC

Moreover, the mass of hydrogen comes from the yielded water, therefore we can also compute the moles of water:

m_H=6.3gH_2O*\frac{1molH_2O}{18gH_2O}*\frac{2molH_2}{1molH_2O}  =0.7molH

Then, to find the subscripts in the empirical formula, we divide by the moles of carbon as the smallest:

C:\frac{0.232}{0.232}=1\\ \\H:\frac{0.7}{0.232}=3

Whose molar mass is:

M_{CH_3}=12+1*3=15g/mol

Thus, the ratio of the molecular formula to the empirical formula is:

\frac{30}{15}=2

Therefore, the molecular formula is twice the empirical formula:

C_2H_6

Which is actually ethane.

Regards.

3 0
3 years ago
If a neutral atom of oxygen has 8 protons, 8 electrons, and 7 neutrons, what number is the mass number of this atom?
irakobra [83]
Mass number = number of protons + number of neutrons

mass number= 8 + 7= 15 ---> the answer is B. 
4 0
4 years ago
1. You may "feel" cold when you touch certain kinds of matter because​
Vinil7 [7]
You may feel cold when you touch certain kinds of matter because some matter gives off cold air. I’m NOT SURE
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asambeis [7]

Explanation:

The teacher is most likely talking about the fractional distillation process.

Fractional distillation: It is a separation technique used to separate different components of the given mixture on the basis of their difference in boiling points of the different components. The component with lowest boiling point will get separate out first from the mixture and the vapors formed from boiling are condensed in a separate container.

So, when the fractional distillation of mixture of oils and fuels is carried out  gasoline will separate out first due to lower boiling temperature and then kerosene followed by diesel and others (fuels and oils).

6 0
3 years ago
The __________________variable is the one factor you manipulate or change in the experiment
SVEN [57.7K]
The independent variable is the one factor you manipulate or change in the experiment.


The dependent is what you are measuring. The independent is the one thing you are altering so you can carry out your experiment.
8 0
3 years ago
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