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Paladinen [302]

3 years ago

5

On, Inc., publishing as pe

1 answer:

enyata [817]3 years ago

8 0

-carbon
-oxygen
-nitrogen

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In the Balmer series, how many spectral lines have the wavelength greater than 400 nm?

Irina18 [472]

<span>The Balmer series or Balmer lines in atomic physics, is the designation of one of a set of six named series describing the spectral line emissions of the hydrogen atom. The Balmer series is calculated using the Balmer formula, an empirical equation discovered by Johann Balmer in 1885. this is all I know sorry</span>

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3 years ago

A boat takes off from a dock at 2.5 m/s and speeds up at 4.2 m/s squared for six seconds how far has the most traveled

GaryK [48]

The boat's position $x$ relative to its starting point $x_0=0$ is determined by

$x=x_0+v_0t+\dfrac12at^2$

where $v_0$ is its initial velocity, $a$ is its acceleration, and $t$ is time. After $t=6\,\mathrm s$ , the boat has traveled

$x=\left(2.5\,\dfrac{\mathrm m}{\mathrm s}\right)(6\,\mathrm s)+\dfrac12\left(4.2\,\dfrac{\mathrm m}{\mathrm s^2}\right)(6\,\mathrm s)^2$

$\implies x=91\,\mathrm m$

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3 years ago

The chemical name for bleach is sodium hypochlorite (NaClO). It is created by a chemical reaction between sodium (Na), chlorine

Sedbober [7]

<span>O + Na + Cl = NaClO

Reactants :

O -> </span><span>Oxygen
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Na -> Sodium

Cl-> Chlorine

hope this helps!

</span>

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3 years ago

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In a classroom, 4 out of every 6 students are female. If there are 27 students, how many of them are female?

icang [17]

Answer:

16 male students, 11 female students

7 0

2 years ago

How much 8 grams will weigh after a physical change

Ber [7]

I would look this one up on Google

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