1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tresset_1 [31]
3 years ago
10

Using the formula velocity = distance/time, how fast does sound travel in air at 20 degrees C given a distance of 500 m and 3.92

seconds.
A- 3.92
B- 127 m/s
C- 2,941 m/s
D- 746 m/s
Chemistry
1 answer:
mixas84 [53]3 years ago
5 0

Answer:

B : 127m/s

Explanation:

= 500 ÷ 3.92

= 127.5

You might be interested in
A stock solution of 1.00 M Fe2(SO4)3 is available. How many milliliters are
Andrews [41]

Answer:

375 mL

Explanation:

M1*V1 = M2*V2

M1 = 1.00 M

V1 = ?

M2 = 0.750 M

V2 = 0.500 L

1.00 M * V1 = 0.750 M * 0.500 L

V1 = 0.750*0.500/1.00 = 0.375 L = 375 mL

5 0
3 years ago
Where is earths mantle located
matrenka [14]
<span>it is located directly under the sima</span>
4 0
3 years ago
Read 2 more answers
Symbol for protons, neutrons, electrons in chemistry.
CaHeK987 [17]
This is the symbols for protons, neutrons, and electrons

7 0
3 years ago
Read 2 more answers
How much thermal energy does a cup of coffee have
Fantom [35]

Answer:

a lot that's why it's really hot

6 0
2 years ago
Read 2 more answers
Draw the best Lewis structure for CH 3 -1. What is the formal charge on the C?
djyliett [7]

Answer :  The formal charge on the C is, (-1) charge.

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

The given molecule is, CH_3^{-1}

As we know that carbon has '4' valence electrons and hydrogen has '1' valence electron.

Therefore, the total number of valence electrons in CH_3^{-1} = 4 + 3(1) + 1 = 8

According to Lewis-dot structure, there are 6 number of bonding electrons and 2 number of non-bonding electrons.

Now we have to determine the formal charge on carbon atom.

Formula for formal charge :

\text{Formal charge}=\text{Valence electrons}-\text{Non-bonding electrons}-\frac{\text{Bonding electrons}}{2}

\text{Formal charge on C}=4-2-\frac{6}{2}=-1

The formal charge on the C is, (-1) charge.

3 0
3 years ago
Other questions:
  • Why is potassium sulfate K2SO4, but strontium sulfate SrSO4?
    13·1 answer
  • Calculate the frequency of the n = 2 line in the Lyman series of hydrogen.
    15·1 answer
  • For which purpose do biochemists insert human genes into bacteria?
    7·2 answers
  • In addition to carbon, hydrogen and oxygen, amino acids also contain?
    5·1 answer
  • You have arrived on a planet where S2, not O2, is the gas used as fuel in combustion reactions. When gaseous propane (C3H8) is b
    6·1 answer
  • How many molecules are in 128g of H2O?
    13·1 answer
  • (Dear brainly, you can't delete this question caue its about school work too)
    10·2 answers
  • An object has a mass of 441 g and a volume
    15·1 answer
  • Ammonia is produced by the Haber process. The equation is shown.
    8·2 answers
  • Based on the ksp experiment describe a way to soften water by removing calcium ions
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!