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Alexandra [31]
3 years ago
14

Bohr recognized that the electrons in the shells surrounding the nucleus were able to move to different energy levels. if an ele

ctron ________ enough energy it would jump to a higher energy level.
Chemistry
2 answers:
Ksenya-84 [330]3 years ago
7 0

Answer: absorbs

Explanation:

Bohr in his structure of atom explained that electrons revolve around the nucleus in fixed orbit or shell or energy levels.These energy levels are stable and are stationary along with different energy value.

A electron can jump to higher energy levels on absorbing the enough energy required to do so.

The electron in higher energy level is unstable and thus gets back to its original state by emitting the energy absorbed.

Thus electron would jump to a higher energy level when it absorbs enough energy.

Over [174]3 years ago
4 0
If an electron absorbs enough energy it would jump to a higher energy level.
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A solution of rubbing alcohol is 68.6 % (v/v) isopropanol in water. How many milliliters of isopropanol are in a 88.2 mL sample
KonstantinChe [14]


From the information given, the total volume of  rubbing alcohol is 88.2 ml

68.6 % of this volume is isopropanol. 

We will assume 88.2 ml represents 100% volume, so the volume of water will be 31.4 %

The volume of isopropanol is

68.6/100 x 88.2 → 0.686 × 88.2 = 60.505 ml

The volume of isopropanol is 60.5 ml.

Volume of water will be 88.20 - 60.5 = 27.7 ml

(27.7 / 88.2 × 100 = 31.4% )

Adding 60.5 ml of isopropanol to 27.7 ml of water to make up 88.2 ml will give 68.6 % v/v isopropanol to water  solution.



8 0
3 years ago
How many atoms of iodine are in 12.75g of CaI2? Hint. How many Iodines are there in one CaI2 particle?
xenn [34]

Answer:

5.225x10^{22}atoms\ I

Explanation:

Hello!

In this case, since 12.75 g of calcium iodide has the following number of moles (molar mass = 293.89 g/mol):

n_{CaI_2}=12.75gCaI_2*\frac{1molCaI_2}{293.89gCaI_2}=0.0434molCaI_2

In such a way, since 1 mole of calcium iodide contains 2 moles of atoms of iodine, and one mole of atoms of iodine contains 6.022x10²³ atoms (Avogadro's number), we compute the resulting atoms as shown below:

atoms\ I=0.0434molCaI_2*\frac{2molI}{1molCaI_2} *\frac{6.022x10^{23}atoms\ I}{1molI} \\\\atoms\ I = 5.225x10^{22}atoms\ I

Best regards!

4 0
3 years ago
Jonah and Rachel volunteer at the recycling center sorting and organizing recyclable objects. Jonah is sorting aluminum cans and
maria [59]

Answer:

A change in form or appearance of matter

Explanation:

4 0
2 years ago
Which of the following measurements are listed in the proper mathematical relationship?(Select all that apply)
Igoryamba

The measurements which are listed in the proper mathematical relationship include:

  • PV=k
  • V/T=k
  • PV/T = k

<h3>What is a Constant?</h3>

This is used in mathematical expressions and has a constant value which doesn't change in expression.

Options A,B and C have the appropriate constants as pressure is usually multiplied by volume.

Read more about Constant here brainly.com/question/15989275

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8 0
1 year ago
The volume of 5.00 M KBr needed to have 1.00 mol KBr mL
astra-53 [7]

Answer: molarity = mole solute/ liter of solution.

=> volume= mole/molarity = 1/5 = 0.2 L = 200mL

Explanation:

7 0
3 years ago
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