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sveta [45]
3 years ago
13

What was Thomson's model of the atom called?

Chemistry
1 answer:
trasher [3.6K]3 years ago
3 0
The answer is C: The plum-pudding model
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Heat is the movement from areas of ___ temperature to areas of ___ temperature
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heat is the movement from areas of <u>high </u>temperature to areas of <u>low </u>temperature

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3 years ago
How much energy moves onto the next level, in an energy pyramid
dybincka [34]
10% is normally how it works .
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3 years ago
Nitrosyl fluoride has the chemical formula NOF. Nitrogen has five valence electrons, oxygen has six, and fluorine has seven. Com
alexira [117]

Answer:

Watch the attached image, please.

Explanation:

To complete the Lewis structure for this covalent compound, you have to draw all the atoms with their valence electrons.

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3 years ago
How are organelles specialized to perform various tasks in a cell?
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8 0
2 years ago
The atomic radius of a gold atom is 144×10^-12. The volume of a gold atom can be calculated using the volume of a sphere. The de
Alekssandra [29.7K]
Given:
Atomic radius of gold = 144 x 10⁻¹² m = 144 pm 
Density of gold = 19.3 g/cm³ = 19.3 x 10⁻³ kg/cm³
Mass of gold sample = 1.40 g = 1.4 x 10⁻³ kg

Calculate the volume of an atom. 
v = [(4π)/3]*(144 x 10⁻¹² m)³ = 1.2508 x 10⁻²⁹ m³

Calculate the mass of an atom.
m=(1.2508\tmes10^{-29}\,m^{3})*(19.3\times 10^{-3}\, \frac{kg}{cm^{3}} )*(10^{2}\, \frac{cm}{m})^{3} \\ = 2.4142 \times 10^{-25}  \, kg

Calculate the number of atoms in a sample of mass 1.40 g.
N =  \frac{1.40 \time 10^{-3} kg}{2.4142 \times 10^{-25} \,  \frac{kg}{atom} } =5.8 \times 10^{21} \, atoms

Answer:  5.8 x 10²¹ atoms
3 0
3 years ago
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