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Amanda [17]
4 years ago
11

Under the Doppler Effect, an observer behind a moving wave source observes

Chemistry
2 answers:
Mumz [18]4 years ago
8 0

i think it is frequency correct me if i am wrong!!

disa [49]4 years ago
3 0
Attachment is the answer
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How many grams are in 3.14 x 1015 molecules of CO?
Vesnalui [34]

Answer:

Explanation:

Not Many

1 mol of CO has a mass of

C = 12

O = 16

1 mol = 28 grams.

1 mol of molecules = 6.02 * 10^23

x mol of molecules = 3.14 * 10^15        Cross multiply

6.02*10^23 x = 1 * 3.14 * 10^15             Divide by 6.02*10^23

x = 3.14*10^15 / 6.02*10^23

x = 0.000000005 mols

x = 5*10^-9

1 mol of CO has a mass of 28

5*10^-9 mol of CO has a mass of x                        Cross Multiply

x = 5 * 10^-9 * 28

x = 1.46 * 10^-7 grams

Answer: there are 1.46 * 10-7 grams of CO if only 3.14 * 10^15 molecules are in the sample

5 0
3 years ago
Please help it’s already overdue
Gnesinka [82]

Answer:

no se amigo esquema no entiendo ingles

7 0
3 years ago
What is the best description of the side of the moon that faces earth?
Delicious77 [7]
D. Changes

Hope this helps :)
4 0
3 years ago
In the reaction C7H16+ ______ O2 --> 8H2O + 7CO2,
sammy [17]
11.

С7Н16 + 11О2 --> 8Н2О + 7СО2
3 0
3 years ago
Pls asap figure it out pls I will mark brainliest​
Maurinko [17]

Answer:

NaCl (Na is a metal and Cl is a nonmetal) MgO (Mg is a metal and O is a nonmetal) Al2O3, NaF, Na2O

Explanation:

You have to have a metal and a non metal together for it to be ionic

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3 years ago
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