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3 years ago

What is the relationship between wavelength and frequency

Chemistry

2 answers:

Alex_Xolod [135]3 years ago

5 0

It is direct because s=f x wavelength

Vladimir [108]3 years ago

3 0

they are both types of measurements

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Which formed first: hydrogen nuclei or hydrogen atoms?

Mama L [17]

This sounds very much like a chicken-egg problem.

The first thing that formed must be hydrogen nuclei. The only other alternative is that the atom was created instantly, and the nuclei sprang forth at the same time as the atom, meaning that neither was technically first. The logic is that an atom can’t form without a nucleus, but it theoretically could be created instantly.

6 0

3 years ago

A chemistry student must write down in her lab notebook the concentration of a solution of sodium hydroxide. The concentration o

HACTEHA [7]

Answer:

1.099 gmL¯¹ ≈ 1.1 gmL¯¹

Explanation:

From the question given above, the following were obtained:

Mass of empty cylinder = 9.5 g

Mass Cylinder + NaOH = 31.92 g

Volume of solution = 20.4 mL

Concentration of solution =?

Next, we shall determine the mass of sodium hydroxide, NaOH. This can be obtained as as illustrated below:

Mass of empty cylinder = 9.5 g

Mass Cylinder + NaOH = 31.92 g

Mass of NaOH =?

Mass of NaOH = (Mass Cylinder + NaOH) – (Mass of empty cylinder)

Mass of NaOH = 31.92 – 9.5

Mass of NaOH = 22.42 g

Finally, we shall determine concentration of the solution as follow:

Mass of NaOH = 22.42 g

Volume of solution = 20.4 mL

Concentration of solution =?

Concentration = mass /volume

Concentration of solution = 22.42 / 20.4

Concentration of solution = 1.099 gmL¯¹ ≈ 1.1 gmL¯¹

Therefore, the concentration of the solution is 1.1 gmL¯¹

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3 years ago

PLZ HELP! Give me a really (winner) good idea for a kids science fair! My little sister has to do one through my school and I ne

OverLord2011 [107]

Explanation:amiga

extrañar

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2 years ago

Coal can be used to generate hydrogen gas (a potential fuel) by this endothermic reaction. If this reaction mixture is at equili

VladimirAG [237]

The question ask to predict the effect where as coal can be used to generate hydrogen gas by this endothermic reason and the best answer among your choices based on the element you give is letter C. raising the temperature of the reaction mixture. I hope my answer is correct

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3 years ago

How does atomic radius (size or atom diameter) affect bond distance (distance between atoms)?

yKpoI14uk [10]

When two atoms of the same element are covalently bonded, the radius of each atom will be half the distance between the two nuclei because they equally attract the electrons. The reason for this trend is that the bigger the radii, the further the distance between the two nuclei. Hope this helps:)

4 0

3 years ago

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