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kkurt [141]
3 years ago
13

Cu+k.HNO3 --> Cu(No3)2+..........+...........

Chemistry
1 answer:
pentagon [3]3 years ago
4 0

Answer:

Cu + HNO3 → Cu(NO3)2 + <u>H2O</u> + <u>NO2</u>

Cu + 4HNO3 → Cu(NO3)2 + <u>2H2O</u> + <u>2NO2 </u>(balanced equation)

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Visible light has an average wavelength of 550 nm. How much energy would be in this wavelength of light? 5 x 10-19​
beks73 [17]

Answer:

E = 3.6×10⁻¹⁹ J

Explanation:

Given data:

Wavelength = 550 nm  (550 ×10⁻⁹ nm)

Energy of wave = ?

Solution:

Formula:

E = h c/λ

c = 3×10⁸ m/s

h = 6.63×10⁻³⁴ Js

Now we will put the values in formula.

E = 6.63×10⁻³⁴ Js × 3×10⁸ m/s /550 ×10⁻⁹ nm

E = 19.89×10⁻²⁶ J.m /550 ×10⁻⁹ nm

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2 years ago
2(x-1 ➗ x+3)-7(x+3 ➗ x-1)=5​
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3 years ago
Which body tissue or organ contains the most mitochondria?
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3 years ago
Question 2: you have two systems: 1) solid gold and water 2) solid sodium and waterWhich one can spontaneously release energy an
Valentin [98]

Hey there!

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gladu [14]

Answer:

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Explanation:

8 0
3 years ago
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