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topjm [15]
3 years ago
10

The faster the object is moving the more portential energy it has?

Chemistry
1 answer:
Mazyrski [523]3 years ago
8 0

Answer:

sure

Explanation:

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1. NaOH mass of a solution of 200g in which its percentage is 25%. What mass of sulfuric acid solution is needed to completely n
Ede4ka [16]

Answer:

m_{H2SO4 = 61.25 g

m_{Na2SO4} = 88.75 g

Explanation:

m_{NaOH} = \frac{200 . 25 }{100} = 50 g

⇒ n_{NaOH} = \frac{50}{40} = 1.25 (moles)

2NaOH + H2SO4 ⇒ Na2SO4 + 2H2O

   2        :     1           :      1         :    2

 1.25                                                       (moles)

⇒  n_{H2SO4} = 1.25 × 1 ÷ 2 = 0.625 (moles) ⇒ m_{H2SO4} = 0.625 × 98 = 61.25 g

    n_{Na2SO4} = 1.25 × 1 ÷ 2 = 0.625 (moles) ⇒m_{Na2SO4} = 0.625 × 142 = 88.75 g

4 0
3 years ago
Night visin cameras are sensitive to energies around 2.21 x 10-19 J. What wavelength of electromagnetic radiation do they use?
defon

Answer:

8.99×10^-7m

Explanation:

The wavelength can be calculated using the expression below

E=hcλ

Where E= energy= 2.21 x 10^-19 J.

C= speed of light= 3x10^8 m/s

h= planks constant= 6.626 × 10^-34 m2 kg / s

E=hcλ

λ= E/(hc)

Substitute for the values

λ=( 2.21 x 10^-19 )/(6.626 × 10^-34 × 3x10^8 )

= 8.99×10^-7m

6 0
3 years ago
Which best describes the motion of molecules in the gaseous state?
artcher [175]

Answer:

They spread apart to fill the enclosed object. In other words they move freely...

hope this helped you

please mark as the brainliest(ㆁωㆁ)

5 0
3 years ago
5. What is the density of water in g/mL? Why?​
goldfiish [28.3K]

Answer:

1g/ml @ 4 degrees C by definition

Explanation:

7 0
3 years ago
Name the following Type 3 compound
Natasha_Volkova [10]

Answer:

32

Explanation:

5 0
2 years ago
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