Long question but worth some pretty good points help plz

Chemistry

2 answers:

Assoli18 [71]3 years ago

6 0

The way you stated the question is quite clear enough, may you please restate it

bazaltina [42]3 years ago

4 0

The way you stated the question is quite clear enough, may you please restate it

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Which three phenomena occur during a double slit experiment and support the wave model of light?

Nat2105 [25]

Answer:

Option A, A-light bends around the edges of the slit.

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3 years ago

If a naturally occurring sample of an unidentified element is found to contain three isotopes (A, B, and C) and consists of 90.5

aivan3 [116]

If a naturally occurring sample of an unidentified element is found to contain three isotopes (A, B, and C) and consists of 90.5% isotope A (mass number 20), 0.3% isotope B (mass number 21), and 9.3% isotope C (mass number 22), the atomic weight of the element measured from the sample will be greater than 21 amu.

To calculate the average atomic mass, multiply the fraction through the mass number for every isotope, then add them together. Whenever we do mass calculations concerning elements or compounds (combos of elements), we usually use average atomic loads.

For instance, carbon-14 is a radioactive isotope of carbon that has six protons and 8 neutrons in its nucleus. We name it carbon-14 because the overall range of protons and neutrons within the nucleus also called the mass number, provides up to fourteen (6+8=14).

Together, the quantity of protons and the range of neutrons determine an detail's mass variety. Due to the fact, that an element's isotopes have barely unique mass numbers, the atomic mass is calculated by obtaining the suggested mass numbers for its isotopes.

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2 years ago

Which model of the atom was the first to contain a nucleus?

lara [203]

Ernest Rutherford's gold foil experiment was when he shot positively charged particles at a thin layer of gold foil. He concluded that there was a core that contained most of the atom's mass, the core is the nucleus

4 0

3 years ago

Hi! Can someone help me with this???

nikklg [1K]

Hey there,

I hope this answer solves your doubt.

Step-by-step Explanation:-

The question is asking if the bonds between Carbon and Chlorine in CCl4 will be single, double or triple bonds.

(The structure of CCl4 is attached as picture. Check it)

As per image, the structure consists of Single bonds. It is 4 single bonds.

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2 years ago

A student determines the molar mass of acetone

love history [14]

The Formula of Acetone is $C_3H_6O$
To find the Mass Molar of a compound, you add the Atomic weights of it's atoms.
If you check the Periodic table:
Atomic Weight of Carbone C: 12.0107
Atomic Weight of Hydrogen: 1.00794
Atomic Weight of Oxygen: 15.9994

So, you got:
Total Atomic Weight of Carbone in Acetone: 12.0107 * 3 = 36.0321
Total Atomic Weight of Hydrogen in Acetone: 1.00794 * 6 = 6.04764
Total Atomic Weight of Oxygen in Acetone = 15.9994 * 1 = 15.9994

Now, you add this numbers
36.0321 + 6.04764 + 15.9994 = 58.07914

So, the Molar Mass of Acetone is 58.09714 g/mol

Hope this Helps :D

7 0

3 years ago