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ddd [48]
2 years ago
11

Nerves impulses _____.

Chemistry
1 answer:
ollegr [7]2 years ago
6 0
Electric signals that travel back and forward
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How many total of atoms are in 0.370gr of P2O5
Irina-Kira [14]
142 g ---------------- 6.02 x 10²³ molecules
0.920g g ------------ ( molecules )

molecules = 0.920 x ( 6.02 x 10²³ ) / 142

molecules = 5.53 x 10²³ / 142

= 3.89 x 10²¹ molecules

1 molecule P2O5 -------------------------- 7 atoms
3.89 x 10²¹ molecules -------------------- ( atoms )

atoms = ( 3.89 x 10²¹) x 7 / 1

atoms = <span>2.72 x 10²² atoms of P2O5


 Hope this helps!!!
</span>
8 0
2 years ago
A 0.532 mol sample of SO2 gas requires 52.3 s to effuse through a tiny hole. Under the same conditions, how long will it take 0.
scoundrel [369]

Answer:

41.3 s

Explanation:

Let t₁ represent the time taken for SO₂ to effuse.

Let t₂ represent the time taken for Ar to effuse.

Let M₁ represent the molar mass of SO₂

Let M₂ represent the molar mass of Ar

From the question given above,

Time taken (t₁) for SO₂ = 52.3 s

Time taken (t₂) for Ar =?

Molar mass (M₁) of SO₂ = 32 + (16×2) = 32 + 32 = 64 g/mol

Molar mass (M₂) of Ar = 40 g/mol

Finally, we shall determine the time taken for Ar to effuse by using the Graham's law equation as shown below:

t₂ / t₁ = √(M₂ / M₁)

t₂ / 52.3 = √(40 / 64)

t₂ / 52.3 = √0.625

t₂ / 52.3 = 0.79

Cross multiply

t₂ = 52.3 × 0.79

t₂ = 41.3 s

Thus, the time taken for the amount of Ar to effuse is 41.3 s

3 0
2 years ago
The movement of atoms molecules waves and electrons is
nikdorinn [45]
Energy, I think, haven't done that since 8th grade
4 0
3 years ago
Enlista cuatro compuestos del carbono,naturales y sintéticos,de uso en la vida cotidiana.
Mice21 [21]
Below is the list of both Natural and Synthetic compounds containing Carbon.

Natural Compounds Containing Carbon:

          1) Food:
                       Carbohydrates, Proteins, Lipids, Fibers

          2) Clothing:
                        Silk, Wool, Cotton

          3) Transportation:
                                      Coal, Natural Gas, Petroleum

          4) Wood:
                        Building, Furniture

Synthetic Compounds Containing Carbon:

          1) Clothing:
                              Nylon, Polyester, 

          2) Transportation:
                                      Petrol, Diesel, Jet Fuels

          3) Building:
                           High Density Polyethylene, Polyvinyl Chloride

          4) Home Appliances:
                        Teflon in non-stick Pans, polyethylene terephthalate bottles


          
5 0
3 years ago
Read 2 more answers
What is<br>metal refinning<br>​
nikklg [1K]

Answer:

It is the way of cleaning of impurities present in metals

7 0
3 years ago
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