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diamong [38]
3 years ago
5

What should I do if I have a friend who i talk to everyday and I like him but he doesn’t like me?

Chemistry
2 answers:
Lera25 [3.4K]3 years ago
7 0

Answer:

Well, you should talk to him and invite him out to dinner at a fancy restaurant. Now's your chance to dress super pretty and look gorgeous. Then he will definitely fall for you.

azamat3 years ago
5 0

Answer:

you never know but manifestation never hurts.

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What happens to the pressure if the gas volume is cut in half while n and I are<br> held constant?
N76 [4]

Answer: You can use Boyle's law, which states that pressure is inversely related to volume when other variables are held constant. If the final pressure of a gas is half of the initial, the volume must double if temperature is to remain the same.

Explanation:

5 0
3 years ago
En el aire que respiramos y en el aire comprimido de los tanques de los buzos se encuentra, además de oxígeno, el gas nitrógeno
marysya [2.9K]

Answer: can someone please translate so i can answer.

Explanation:

sorry

7 0
3 years ago
Electric power is measured in watts (1 W = 1 J/s). About 95% of the power output of an incandescent bulb is converted to heat an
nlexa [21]

Answer:

9.430 * 10¹⁷ protons per second whill shine on the book from a 62 W bulb

Explanation:

To answer this question, first let's calculate the energy of a single photon with a wavelength (λ) of 504 nm:

E = hc/λ

Where h is Planck's constant (6.626*10⁻³⁴ J·s) and c is the speed of light (3*10⁸ m/s).

E = 6.626*10⁻³⁴ J·s * 3*10⁸ m/s ÷ (504*10⁻⁹m) = 3.944 * 10⁻¹⁹ J.

So now we can make the equivalency for this problem, that

<u>1 proton =  3.944 * 10⁻¹⁹ J</u>

Now we convert watts from J/s to proton/s:

1 \frac{J}{s}*\frac{1proton}{3.944*10^{-19}J}=2.535*10^{18} \frac{proton}{s} = 1 W

Solving the problem, a 62 W bulb converts 5% of its output into light, so:

  • 62 * 5/100 = 3.1 W

3.1 watts are equal to [ 2.535*10¹⁸ proton/s * 3.1 ] = 7.858 * 10¹⁸ proton/s

Of those protons per second, 12% will shine on the chemistry textbook, thus:

7.858 * 10¹⁸ proton/s * 12/100 = 9.430 * 10¹⁷ protons/s

8 0
2 years ago
Is oxygen an element?
laiz [17]
Yes oxygen is an element it is
the 8th element 
the second period
16th group
noble gas configuration [He]2s^22p^4
7 0
3 years ago
What does the Roman numeral in the name Tin IV Fluoride indicate?
Gre4nikov [31]

Answer:

It indicates the number 4

Explanation:

IV=4

4 0
3 years ago
Read 2 more answers
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