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Alborosie
3 years ago
13

WILL GIVE BRAINLIEST AND POINTS!!

Chemistry
1 answer:
Aleksandr [31]3 years ago
5 0

Answer:

H2O= +2

CCl4 = +4

Na+= 0

CuCl2= -2

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Neutron notes
Montano1993 [528]

Answer:

A neutron is a subatomic particle with a mass comparable to a proton and a neutral electrical charge. A neutron is a subatomic particle with a mass of 1 and charge of 0. ... While the number of protons in a atom determines its element, the number of neutrons determines its isotope

Explanation:

thank me later:()

7 0
2 years ago
The atomic mass of Aluminum is 26.98154 g/mol. Is it possible to have 5.0*10-25g of Al
suter [353]
I believe the correct answer is no, it is impossible to have 5.0*10^-25g of Al. One atom of Al weighs <span>4.48*10^-23 g/atom Al which means</span> it is impossible to have any weight of Al less than that. Hope this answers the question. Have a nice day.
7 0
3 years ago
The wavelength of a wave is 0.5 meters, and its period is 2 seconds. What is the
Salsk061 [2.6K]

Answer:

1 m/s

Explanation:

speed=wavelength*frequency

speed=0.5*2

speed=1

7 0
3 years ago
The PH solution of NH3 of 0.950molar solution is 11.612. find the Kb​
Vaselesa [24]

Answer:

1.8 x 10⁻⁵

Explanation:

 NH3(aq)  +  H2O(l)  ⇄ NH4⁺(aq)  +   OH⁻(aq)

I  0.95                              0                    0

C -x                                 +x                  +x

E 0.95-x                           x                    x

Kb= [NH₄⁺] [OH⁻] / (  NH₃) = x²/ (0.95-x )

P(OH) = 14-PH = 14-11.612 = 2.388

(OH)⁻¹ = 10⁻²°³⁸⁸ = 4.09 x 10⁻³ = x

Kb = (4.09 x 10⁻³)²/ (0.95-4.09 x 10⁻³)

= 1.8 x 10⁻⁵

8 0
3 years ago
Each astronaut produces 8.8 x 10^2 g CO2 per day that must be removed from the air on the shuttle. If a typical shuttle mission
Sever21 [200]
The answer to this would be:

The shuttle can carry a maximum of 4 astronauts for one mission.

2 LiOH + CO2 -----> Li2CO3 + H2O

(3.50 × 10^4 g LiOH) (1 mol LiOH/ 24 g LiOH) ( 1 mol CO2 / 2 mol LiOH) ( 44 g CO2 /1 mol CO2) = 32, 083.33 g CO2

32, 083.33 g / 9 (8.8 × 10^2) = 4 


7 0
3 years ago
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