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shtirl [24]
3 years ago
5

Compare and contrast the ease at which molecules are able to move relative to each other in the three states of matter

Chemistry
1 answer:
ANTONII [103]3 years ago
5 0
The arrangement of molecules within the 3 phases of matter are shown in the picture. 

For the solid, the molecules are packed closely together. They don't have much space to move, so they just practically vibrate. For the liquid, the molecules are relatively farther from each other. The liquid molecules can flow freely but not as much as the gases. In the gases, the molecules are very far from each other. They are very sensitive to slight changes of pressure, volume and temperature.

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Sodium has______ Valence electrons and bismuth has ________ electrons
Triss [41]

Answer:

Sodium has 1 valence electron and bismuth has 83 electrons (5 valence electrons)

Explanation:

5 0
3 years ago
How many valence electrons are in potassium
klasskru [66]

One because Potassium is in the first column on the periodic table. Any element in the first column on the periodic table has one valence electron in their outer shell.

3 0
3 years ago
Can someone solve the equations for these? 45 points
Volgvan
2)

formula equation: Pb(NO₃)₂(aq) + 2KI(aq) ----> PbI₂(s) + 2KNO₃(aq)
total ionic equation: Pb⁺² + 2NO₃⁻¹ + 2K⁺¹ + 2I⁻¹----> PbI₂(s) + 2K⁺¹ + 2NO₃⁻¹
net ionic equation: Pb⁺² + 2 I⁻¹----> PbI₂(s)

3) 

formula equation: Zn(NO₃)₂(aq) + K₂CO₃(aq) -----> ZnCO₃(s) + 2KNO₃(aq)
total ionic equation: Zn⁺² + 2NO₃⁻¹ + 2K⁺¹ + CO₃⁻² ---> ZnCO₃ (s) + 2K⁺¹ + 2NO₃⁻¹
net ionic equation: Zn⁺² + CO₃⁻² ----> ZnCO₃ (s)


note: if I did not specify the state of the molecule in the reaction, you can assume they are aqueous unless state otherwise. 
8 0
3 years ago
Vaping is... A. ...Holding an e-cigarette or vape device to look cool. B. ...The act of inhaling and exhaling tobacco from a cig
Lelechka [254]

Answer:

D

Explanation:

Process of elimination. There is more than just water vapor in a vape so it can't be D, it isn't a cigarette so it can't be B, and A is just clearly not the answer haha.

5 0
3 years ago
Which quantity can be calculated using the equation E=MC^2
r-ruslan [8.4K]

Answer:

The energy needed to split an atom into separate protons, neutrons, and electrons

Explanation:

The equation E = MC^2 is developed by Einstein’s Special Relativity Theory

where,

E = Energy

M = mass

C = speed of the light

The energy should be measured in Joules i.e J

The mass should be measured in Kilogram i.e Kg

And, the speed of the light should be measured in meters per second i.e ms-1

The C should be squared

Now the energy is required to divided into three particles i.e protons, electrons and neutrons

It also needs to allocate the nucleus into distinct protons and neutrons that we called binding energy of nuclear

And if the energy is required to take off an electron from an atom we called the energy of ionization

And if the energy is required to add an electron to an atom so we called it affinity of electron

8 0
3 years ago
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