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ira [324]
3 years ago
9

Perform the following operation and express the answer in scientific notation. 1.26x104 + 2.50x104 [?]x10​

Chemistry
1 answer:
ss7ja [257]3 years ago
4 0
Since your multiplying by the same number, 104, both terms, you can group them like this:
104(1.26+2.50)
104(3.76)
391.04

Knowing that scientific notation needs to be a number x, that’s greater or equal to 1, and less then 10.
3.9104 * 10^2
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Answer:- New pressure is 0.942 atm.

Solution:- The volume of the glass bottle would remain constant here and the pressure will change with the temperature.

Pressure is directly proportional to the kelvin temperature. The equation used here is:

P_1T_2=P_2T_1

Where, T_1 and T_2 are initial and final temperatures, P_1 and P_2 are initial and final pressures.

T_1 = 20.3 + 273.15 = 293.45 K

T_2 = -2.0 + 273.15 = 271.15 K

P_1 = 1.02 atm

T_2  = ?

Let's plug in the values in the equation and solve it for final pressure.

1.02atm(271.15K)=P_2(293.45K)

P_2=\frac{1.02atm*271.15K}{293.45K}

P_2 = 0.942 atm

So, the new pressure of the jar is 0.942 atm.


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3 years ago
What is the treatment and disposal of Mercury<br>​
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<h2>Hey there! :) </h2>

<h3>The treatment and disposal of Mercury:</h3>

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Dvinal [7]

The hydrogen bonding in H₂O is stronger than that of HF

Explanation:

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  • The strength of hydrogen bonds depends on the how electronegative an atom is.
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Learn more:

hydrogen bond brainly.com/question/12408823

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Answer:

Volume = 135.7375

Explanation:

volume = mass/density

v = m/d

v = 108.59/0.8

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Answer:

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Explanation:

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