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3 years ago

How the glass is made up off?

Chemistry

1 answer:

Wittaler [7]3 years ago

3 0

Answer:

hope this would be helpful for you

Explanation:

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Match each statements with the state of matter it describes?

Len [333]

Answer:

Solid liquids , plasma gas

Explanation:

It retains its shape regardless of the shape of the container

5 0

3 years ago

A weather balloon calibrated at 0.00 °C to

Natasha2012 [34]

Answer:

17.3 L

Explanation:

With all other variables held constant, you can find the missing volume using the Charles' Law equation:

V₁ / T₁ = V₂ / T₂

In this equation, "V₁" and "T₁" represent the initial volume and temperature. "V₂" and "T₂" represent the final volume and temperature. Before we can solve, we need to convert Celsius to Kelvin (because we don't want negative numbers or temp. of 0).

V₁ = 20.0 L V₂ = ? L

T₁ = 0.00 °C + 273.15 = 273.15 K T₂ = -36.2 °C + 273.15 = 236.95 K

V₁ / T₁ = V₂ / T₂ <----- Charles' Law equation

20.0 L / 273.15 K = V₂ / 236.95 K <----- Insert values

0.0732 = V₂ / 236.95 K <----- Simplify left side

17.3 L = V₂ <----- Multiply both sides by 236.95

6 0

2 years ago

PLEASE ANSWER ASAP FOR 50 POINTS (scroll down to see the pictures for the questions)

sladkih [1.3K]

Absorption occurs when photons from incident light hit atoms and molecules and cause them to vibrate. The more an object's molecules move and vibrate, the hotter it becomes. This heat is then emitted from the object as thermal energy.

8 0

3 years ago

Read 2 more answers

An air bubble with a radius of 2.5 cm at the bottom of a lake where the temperature is 5.4 0C and the pressure is 3.2atm rises t

olasank [31]

Answer:

3.8 cm

Explanation:

Given data

Initial pressure (P₁): 3.2 atm

Initial volume (V₁): 65 cm³

Volume of a sphere: V = 4/3 × π × r³ = 4/3 × π × (2.5 cm)³ = 65 cm³

Initial temperature (T₁): 5.4°C + 273.15 = 278.6 K

Final pressure (P₂): 1.0 atm

Final volume (V₂): ?

Final temperature (T₂): 25.0°C + 273.15 = 298.2 K

We can find the final volume using the combined gas law.

$\frac{P_{1}\times V_{1}}{T_{1}} =\frac{P_{2}\times V_{2}}{T_{2}}\\\frac{3.2atm\times 65cm^{3} }{278.6K} =\frac{1.0atm\times V_{2}}{298.2K}\\V_{2}=223cm^{3}$

The final radius of the bubble is:

V = 4/3 × π × r³

223 cm³ = 4/3 × π × r³

r = 3.8 cm

6 0

4 years ago

Determine the number of shared and unshared electrons in the structure. shared (bonding) electrons: unshared (lone, nonbonding)

telo118 [61]

This is an incomplete question, here is a complete question.

The given molecule is, $SO_3$ and structure is shown below.

Determine the number of shared and unshared electrons in the structure.

Shared (bonding) electrons :

Unshared (lone, non-bonding) electrons :

Answer :

Shared (bonding) electrons : 8

Unshared (lone, non-bonding) electrons : 16

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

The given molecule is, $SO_3$

As we know that sulfur and oxygen has '6' valence electrons.

Therefore, the total number of valence electrons in $SO_3$ = 6 + 3(6) = 24

Bonding electrons : These are those electrons that are shared between the atoms resulting in the formation of bond.

Non-bonding electrons : They are the valence electrons of the atom which are not shared with another atom.

According to Lewis-dot structure, there are 8 number of bonding electrons and 16 number of non-bonding electrons.

4 0

3 years ago