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SCORPION-xisa [38]
3 years ago
7

Car traveling with constant speed travels 150 km in 7200 s. What is the speed of the car?

Chemistry
1 answer:
Pepsi [2]3 years ago
6 0
<span>0.0208 km/s is your speed</span>
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Jonathan is working in his basement on a science fair project when his little sister closes and locks the door. Jonathan wants t
solmaris [256]

Answer:

he can bang metal pipes but i would rather say that he has to yell for help

Explanation:

why because the basement is very loud and echo so when is parents hear him they can run to basement and get him out

hope this helped

4 0
3 years ago
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A compound contains 72% magnesium and 28% nitrogen. What is its empirical formula?
SashulF [63]

So the empirical formula is Mg3N2

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Can reactions be more than one of the five types
ehidna [41]
Yes you can it will not just have 5 :)

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3 years ago
It is desired to produce 2.25 grams of dichloromethane (CH2Cl2) by the following reaction. If the percent yield of dichlorometha
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Answer:- 3.12 g carbon tetrachloride are needed.

Solution:- The balanced equation is:

CH_4+CCl_4\rightarrow 2CH_2Cl_2

From given actual yield and percent yield we will calculate the theoretical yield that would be further used to calculate the grams of carbon tetrachloride.

percent yield formula is:

percent yield = (\frac{actual}{theoretical})100

65.5=(\frac{2.25}{theoretical})100

theoretical=(\frac{2.25(100)}{65.5})

theoretical = 3.44 g

From balanced equation, there is 2:1 mol ratio between dichloethane and carbon tetrachloride.

Molar mass of dichloroethane is 84.93 gram per mol and molar mass of carbon tetrachloride is 153.82 gram per mol.

3.44gCH_2Cl_2(\frac{1molCH_2Cl_2}{84.93gCH_2Cl_2})(\frac{1molCCl_4}{2molCH_2Cl_2})(\frac{153.82gCCl_4}{1molCCl_4})

= 3.12gCCl_4

So, 3.12 grams of carbon tetrachloride are needed to be reacted.

8 0
3 years ago
The volcano in the image is called Ol Doinyo Lengai. This volcano formed as a result of two plates separating. Which other type
creativ13 [48]

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Convergent

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I did the test

8 0
3 years ago
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