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makkiz [27]
3 years ago
5

What is the symbol for the element that is in group 7a and period 6?

Chemistry
1 answer:
yawa3891 [41]3 years ago
8 0
The answer is: Aststine (At) 
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If temperature is increased, the number of collisions per second <br> .
Hatshy [7]

Answer

If the temperature is increased , the number of collision per second increases.

Explanation

Temperature is proportional to the average kinetic energy of a sample of a gas according to the equation PV=n R T. An increased in temperature , increases the kinetic energy of the gas particles which in turn rises the velocity of the gas particles hitting the walls of the container. The more the number of particles the higher the collision rate and greater the pressure as long as the volume of container and the temperature are constant.


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draw the structure of a compound with the formula c9h20 that has two non-adjacent chirality centers, both r.
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Answer:

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Explanation:

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2 years ago
An area of high pressure will most likely result<br> in which type of weather?
JulijaS [17]

Answer:

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A student combines a sample of gas (2.0 L) at 3.5 atm with with another gas (1.5 L) at 2.8 atm pressure into an empty 7.0 L flas
Sedbober [7]

Answer:

Total gas pressure is 1.60 atm

Explanation:

To solve this question we can use the Ideal Gases Law. We need to determine how many moles of each gas will be finally present at the flask of 7 L.

Let's asume the gas, are at Asbsolute T°, 273K

P. V = n . R . T

3.5 atm . 2L = n . 0.082 . 273K

(3.5 atm . 2L) / (0.082 . 273K) = 0.313 moles

(2.8 atm . 1.5L) / (0.082 . 273K) =  0.188 moles

Total moles = 0.313 mol + 0.188 mol = 0.501 mol

Let's calcualte the hole pressure

P . 7L = 0.501 moles . 0.082 . 273K

P = (0.501 moles . 0.082 . 273K) / 7L → 1.60 atm

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2 years ago
Which activity requires people to use fossil-fuel resources?
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Answer:

b and d

Explanation:

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