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Leokris [45]
3 years ago
14

Which of the following is true about the concept of half-life?

Chemistry
2 answers:
Reptile [31]3 years ago
8 0
Its A. because it measures the rate of the decay of the isotope
Margaret [11]3 years ago
3 0

it is A Half-life measures the rate of decay of a radioisotope.

I took the test

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The pressure of a gas increases as the number of moles of gas increases because –
denpristay [2]

Answer:

  c) more particles collide with the walls of the container

Explanation:

More moles means more particles. If the volume remains the same, the collisions of more particles with the container walls cause the pressure to increase.

7 0
3 years ago
What does thermodynamics deal with? A. The transfer of heat and energy B. The properties of sound waves C. The movement of elect
Aneli [31]
The correct answer is <span>A. The transfer of heat and energy

Sound waves, electron movement, and conservation of matter are studied by different parts of physics. Thermo is an ancient root word/prefix that is used to refer to heat. An example of that is a Thermos, which is supposed to save heat of a liquid.</span>
5 0
3 years ago
Read 2 more answers
1. Which of the following elements has a complete outer shell of electrons?
Savatey [412]
Number one is neon, so C
3 0
3 years ago
When 429 mmhg of argon, 1.2 atm of neon, and 225 mmhg of helium are mixed, what is the total pressure?
Dmitry_Shevchenko [17]

The total pressure  1566 mm Hg.

Pressure is the force applied perpendicular to the floor of an object per unit location over which that pressure is shipped. Gauge strain additionally spelled gage pressure is the pressure relative to the ambient stress. pressure.

The SI unit of stress is pascal which is identical to one newton in keeping with rectangular meter. apparently, this name was given in 1971. earlier than that pressure in SI became measured in newtons in line with square meter.

Partial pressure of Argon = 429 mm Hg

Partial pressure of Neon = 1.2 atm

   ∵ 1 atm = 760 mm Hg

=> 1.2 atm = 1.2 * 760 mm Hg

                 = 912 mm Hg

Partial presser of He = 225 mm Hg

S0, Total pressure = Par + P ne + P he

                              =  ( 429 + 912 + 225 ) mm Hg

                              = 1566 mm Hg

Learn more about pressure here:-brainly.com/question/25965960

#SPJ4

6 0
1 year ago
Nuclear equation problem<br> Please answer asap no explanation needed <br> (Look at picture)
Ksju [112]
I think A or C but 75%C
7 0
3 years ago
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