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iris [78.8K]
3 years ago
13

Enter your answer in the provided box.

Chemistry
1 answer:
telo118 [61]3 years ago
8 0

Answer:

i really dont know i just need points bad sorry bud

You might be interested in
How many atoms are in 9.35 moles of lithium?
Fudgin [204]

Answer:

3.45 moles Li  contains  2.08 × 10 (to the power of)24  atoms .

Explanation:

The relationship between atoms and moles is:

1  mole atoms =

6.022 × 10 (to the power of)23

atoms

In order to determine how many atoms occupy a given number of moles, multiply the given moles by  

6.022 × 10 (to the power of)23

atoms/mole

.

In the case of 3.45 moles lithium (Li):

3.45 mol Li × 6.022 × 10 (to the power of)23  atoms Li/ 1 mol Li =

2.08 × 10 (to the power of)24

atoms Li  rounded to three

6 0
3 years ago
Which of the following molecule(s) is (are) polar? CO2, CH4, CBr4, or CHBr3
PolarNik [594]
CO2 is not polar as in this case the same types of molecules are pulling in the same as well as opposite direction. CH4 is also not polar as there is no imbalance in the charge of the molecules. CBr4 is also not polar because in this case also no imbalance in the molecular charges can be seen. CHBr3 is a bit polar in nature because it has different kind of charges at its opposite ends. S among the all 4 options CHBr3 is polar.


4 0
3 years ago
The periodic trend for electronegativity is similar to what other trend?
Lesechka [4]
D. The trend for first ionization energy
6 0
3 years ago
Read 2 more answers
I NEED HELP PLEASE! :)
riadik2000 [5.3K]

Answer:

C_{21} H_{23} NO_{5}

Explanation:

First thing is we have assume all the percents are grams so we have

68.279g C, 6.2760g H, 3.7898g N, and 21.656g O

Now convert each gram to moles by dividing the the molar mass of each element

68.279g/12.01g= 5.685 moles of C

6.2760g/1.01g= 6.214 moles of H

3.7898g N/14.01g= 0.271 moles  of N

21.656g O/ 16.00g= 1.354 moles of O

Now to find the lowest ratios divide all the moles by the smallest number of moles you found, in our case, the smallest moles is 0.271 moles of N so divide everything by that....

5.685 moles/0.271 moles ------> ~21 C

6.214 moles/0.271 moles --------> ~23 H

0.271 moles  / 0.271 moles  ---------> 1 N

1.354 moles/ 0.271 moles ----------> ~5 O

So the empirical formula is C21H23NO5 C_{21} H_{23} NO_{5}

5 0
3 years ago
Weathering and erosion are the only
stealth61 [152]

Answer:

false

Explanation:

there are more than 2 forces of nature that change the environment and landforms

4 0
3 years ago
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