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zhenek [66]
3 years ago
9

The Bohr model of the atom suggest that the protons and neutrons are found in the nucleus and the electrons orbit the nucleus mu

ch line planets around the sun. How is our modern model of the atom different from this model?
Chemistry
1 answer:
vredina [299]3 years ago
8 0

Answer:

D) The electrons move around the nucleus in an electron cloud

Explanation:

i just did it on usa test prep !

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Calculate the number of grams of Fe that are produced when 57 grams of FeO is reacted with excess aluminum in the following reac
Dafna11 [192]

Answer:

Mass of Fe produced = 44.7 g

Explanation:

Given data:

Mass of Fe produced in gram = ?

Mass of FeO react = 57 g

Solution:

Chemical equation:

2Al + 3FeO  →  3Fe + Al₂O₃

Number of moles of FeO:

Number of moles = mass/ molar mass

Number of moles = 57 g/ 71.844 g/mol

Number of moles = 0.8 mol

Now we will compare the moles of Fe with FeO from balance chemical equation.

                    FeO          :          Fe

                       3            :           3

                    0.8            :          0.8

Mass of Fe:

Mass = Mass × molar mass

Mass = 0.8 mol ×  55.845 g/mol

Mass = 44.7 g

6 0
3 years ago
How can you remember an individual element's ionic charge?
docker41 [41]

Answer:

write it down

Explanation:

6 0
3 years ago
Read 2 more answers
Find the rms speed of the molecules of a sample of n2 (diatomic nitrogen) gas at a temperature of 32.5°c.
Korvikt [17]
The rms speed of a gas can be calculated using the following rule:
Vrms = sqrt[(3RT) / M] where
R is the gas constant = 8.314 <span>J K^−1 mol^−1
T is the temperature = 32.5 + 273 = 305.5 degree kelvin
M is the molar mass = 2*14 = 28 grams = 0.028 kg

Substitute with the givens in the equation to get the rms speed as follows:
Vrms = sqrt [(3*8.314*305.5) / 0.028]
Vrms = 521.665 m/sec</span>
5 0
3 years ago
Enter the correct ground-state (or lowest energy) configuration based on the number of electrons: 1s^2 2p^6 3s^2.
elena-14-01-66 [18.8K]

Answer:

The ground state represents the lowest-energy state of the atom.

Explanation:

sd

4 0
2 years ago
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What state of matter has no visible shape and fills its container?
Ilia_Sergeevich [38]
I believe it is b. I hope this helps you
8 0
3 years ago
Read 2 more answers
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