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Liono4ka [1.6K]
3 years ago
9

Can someone help me pls i only have 5 mins to complete

Chemistry
1 answer:
Inessa [10]3 years ago
5 0
I think it is carbon
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How do you convert 16.7 inches to feet?
beks73 [17]
There are 12 inches in a foot.

16.7 in ÷ 12 in = 1.39 ft

Or if you prefer to the nearest tenth:

1.4 ft.

Good luck! :)
6 0
3 years ago
Read 2 more answers
Which of the following assumptions appears reasonable for the isothermal process? H20 (liq, 1 bar) → H2O (liq, 1300 bar), T = 20
Vitek1552 [10]

Answer : The assumptions appears reasonable for the isothermal process is, \Delta U=0 and \Delta H=0

Explanation :

First law of thermodynamic : It states that the energy can not be created or destroyed, it can only change or transfer from one state to another state.

As per first law of thermodynamic,

\Delta U=q+w

The expression for internal energy is:

\Delta U=nC_vdt

The expression for enthalpy is:

\Delta H=nC_pdt

where,

\Delta U = internal energy

q = heat

w = work done

n = number of moles

C_v = specific heat capacity at constant volume

C_p = specific heat capacity at constant pressure

dt = change in temperature

As we know that, the term internal energy and enthalpy is the depend on the temperature and the process is isothermal that means at constant temperature.

T = constant

\dt = 0

So, at constant temperature the internal energy and enthalpy is equal to zero. That means,

\Delta U=0 and \Delta H=0

3 0
4 years ago
If two atoms are bonded to a central atom with no lone pairs , how will they be arranged?
Dmitriy789 [7]
Most likely the geometric form of the molecule will be linear.
Explanation:
One possibility is the central atom being an atom with two valance electrons. This will create a liner molecule with no lone pairs of electrons
Another possibility is a central atom being an atom with four valance electrons. If the two atoms each require two bonds like oxygen the result will be a linear molecule with no lone pairs of electrons.
3 0
3 years ago
AlF3 is almost insoluble in anhydrous HF but dissolves if KF is present.passage of BF3 through the resulting solution causes AlF
miskamm [114]
<span>It's because the product formed with BF3 is more complex which able to decompose AlF3.

</span>AlF3 doesn't dissolve in HF because of the fluorine. It's doesn't allow for coordination due to the hydrogen. However, it will dissolve in KF. If you look at the chemical reaction, it's able to form a salt.

<span>3KF+Al<span>F3</span>−>3KF.Al<span>F3</span></span>
4 0
4 years ago
Which of these are examples of negative tropism? (Select all that apply.)
irina1246 [14]
Negative tropism is the growth or movement of an organism away from a stimulus. A common example that can be used to explain negative tropism is the shoot of the plants that grow against gravity
7 0
3 years ago
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