I need this answer. any thing will help

Chemistry

1 answer:

Licemer1 [7]3 years ago

8 0

Answer: condensaytion

Explanation: its reverse vaporation instead of water turning into gas gas turns into water

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Iron-59 has a half-life of 44 days. a radioactive sample has an activity of 0.64 mbq. what is the activity of the sample after 8

myrzilka [38]

Radioactive decay is a pseudo-first order reaction. When you know the half-life of the material, you could use this equation.

A= A₀(1/2)^t/h
where
A is the final activity
A₀ is the initial activity
t is the time
h is the half-life

A = (0.64)(1/2)^88/44 = <em>0.16 mbq</em>

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Your correct answer would be of when the "e<span>lectrons flow from the negative end of a source towards the positive end."

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Which statement is TRUE according to the kinetic molecular theory? Which statement is TRUE according to the kinetic molecular th

vodka [1.7K]

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The average kinetic energy of a particle is proportional to the temperature in Kelvin.

Explanation:

The kinetic molecular theory states that particles of matter are in constant motion and collide frequently with each other as well as with the walls of the container.

The collisions between particles are completely elastic. The kinetic energy of the particles of a body depends on the temperature of the body since temperature is defined as a measure of the average kinetic energy of the particles of a body.

Therefore, the average kinetic energy of a particle is proportional to the temperature in Kelvin.

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