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Vedmedyk [2.9K]
3 years ago
10

It’s a Gas!

Chemistry
1 answer:
Zielflug [23.3K]3 years ago
8 0
6.) 1
7.) 1
8.) 4
9.)4
10.) 4
11.) 4

I am pretty sure this is the answer
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Neporo4naja [7]
Black hole is likely to spin
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3 years ago
How many grams of nitrogen dioxide are required to produce 5.89x10^3 kg of hno3 in excess water
polet [3.4K]
<span>3 NO2 + H2O -------->. 2 HNO3. + NO
3(46g)------------------------> 2 ( 63g) HNO3
? kg-------------------------5.89 x10^3kg HNO3
Mass of NO2. = 5.89x10^3 x 138/ 2(63) = 6.45 x10^3 kg</span>
5 0
3 years ago
Select the sentence from the section "Cute Beavers Also Cause Trouble" that is MOST important to include in the section's summar
vichka [17]

The section "Cute Beavers Also Cause Trouble" that is MOST important to include in the section's summary is They can also be moved or killed if they cause trouble.

<h3>Are beavers a threat to humans?</h3>

Beavers are not to be creature which are not dangerous if left to be alone. But, they will often confront any threat when they are trapped or cornered, and thus a beaver will attack a human.

Hence, The section "Cute Beavers Also Cause Trouble" that is MOST important to include in the section's summary is They can also be moved or killed if they cause trouble.

Learn more about Beavers from

brainly.com/question/26756213

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5 0
2 years ago
An electron in a hydrogen atom relaxes to the n=4 level, emitting light of 74 THz.
Solnce55 [7]
Delta E = Ef - Ei
E = energy , h = plank constant  , v = frequency
h= 6.626 * 10 ^-34 j*s  ,  T = 10 ^ 12  , v = 74 * 10 ^12 Hz  ,  Hz = s^-1 

E = ( 6.626 * 10^ -34 j*s) ( 74 * 10 ^ 12 s^ -1 )  =   4.90 * 10 ^ -20 J
Delta E  = Ef  -  Ei
-4.90 * 10 ^ -20 J =  -2.18 * 10 ^ -18J ( 1/4 ^2 - 1/x ^2)
0.0225 = 0.0625 -  ( 1/x ^ 2)
0.225 - 0.0625 =  - 1/ x ^ 2 

- 0.0400 = - 1/x ^2    =   -1 / - 0.0400    =   x^2
25   =  x^2 
     x = 5 




6 0
3 years ago
When atoms come together, there is _______ between the positive nucleus and the negative electron clouds
vova2212 [387]

My guess is attraction.

3 0
3 years ago
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