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Cloud [144]
3 years ago
7

When the compound Na2S forms what happens to the Na and S ions

Physics
2 answers:
Mila [183]3 years ago
8 0
Nothing, ATOMS lose or gain electrons to become IONS 
<span>Two Na ATOMS lose 1 electron each and 1 S ATOM gains 2 electrons </span>
Gemiola [76]3 years ago
6 0
Since sodium ions each have a single positive charge (lacking one electron in its valence orbital) and sulfur ions each have a 2- charge (having two extra electrons in its valence orbital), the compound Na2S forms when two sodium ions are ironically bound to a central sulfur.
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One of two 25-year-old identical twins begins a trip on a spaceship traveling at 0.8 c while her twin remains on Earth. The twin
borishaifa [10]

Answer:

This equation is based on twin paradox - a phenomena where one of the twin travels to space at a speed close to speed of light and the other remains on earth. the twin from the space on return discovers that the one on earth age faster.

Solution:

t_{o} = 10 years

v = 0.8c

c = speed of light in vacuum

The problem can be solved by time dilation equation:

t = \frac{t_{o}}{\sqrt{1 - \frac{v^{2}}{c^{2}}}}            (1)

where,

t = time observed from a different inertial frame

Now, using eqn (1), we get:

t = \frac{10}{\sqrt{1 - \frac{(0.8c)^{2}}{c^{2}}}}

t = 16.67 years

The age of the twin on spaceship according to the one on earth = 25+16.67 =41.66 years

8 0
3 years ago
A microwave oven uses 1,200 watts. It runs a total of 6 hours during the corse of a week. How much energy does the microwave ove
zzz [600]

Answer:

7.2 kilowatts

Explanation:

Energy= power x time

where:

power = 1,200watts to kilowatts is 1.2kw

time = 6hours

therefore,

energy = 1.2kw x 6hrs

=7.2 kilowatts

5 0
3 years ago
I'm confused with this​ I need this ASAP
Gnoma [55]
I’m pretty sure it’s a
6 0
3 years ago
A young's interference experiment is performed with blue-green laser light. the separation between the slits is 0.500 mm, and th
fgiga [73]
What class is this for?
3 0
3 years ago
A stream moving with a speed of 7.1 m/s reaches a point where the cross-sectional area of the stream decreases to one half of th
lana66690 [7]

Answer:

14.2 m/s

Explanation:

Given data:

Speed of the stream, v₁ = 7.1 m/s

let the cross section area at initial point be A₁

now area at the second point, A₂ = (1/2)A₁ = 0.5A₁

now, from the continuity equation, we have

A₁v₁ = A₂v₂

where, v₂ is the velocity at the narrowed portion

thus, on substituting the values, we get

A₁ × 7.1 = 0.5A₁ × v₂

or

v₂ = 14.2 m/s

8 0
3 years ago
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