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3 years ago

What makes a gas, what are the particles

Chemistry

1 answer:

stellarik [79]3 years ago

5 0

In a gas, the partcles are very far apart and loose.

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In a molecule of fluorine, the two shared electrons give each fluorine atom how many electron(s) in the outer energy level

timofeeve [1]

Answer:

8 electrons

Explanation:

As per the <u>octet rule</u>, the atoms possess a tendency to bond in a manner that every atom must have at least eight(8) electrons in its outermost/valence shell. It can be done either by sharing, gaining, or losing electrons from one atom to another. According to this rule, flourine would have 8 electrons in its outer shell after two shared electrons are given to it.

4 0

3 years ago

The equation of state corresponding to 8 gm of Oxygen (O2) is : PV=RT,RT/4,RT/3 or RT/2?

nexus9112 [7]

In PV = nRT, n is the number of moles. When 8 grams of oxygen are present,
n = 8/32 = 1/4
So PV = RT/4

8 0

4 years ago

Read 2 more answers

4. A handful of sand has a mass of 208 g and displaces a volume of 80.0 mL. Calculate its

DerKrebs [107]

Answer:

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question we have

$density = \frac{208}{80} = 2.6 \\$

We have the final answer as

Hope this helps you

7 0

3 years ago

What happens to an earthquake’s p-waves when they strike the liquid core?

padilas [110]

Answer:

They bounce off.

Explanation:

They change into S-waves. They change into R-waves.

6 0

4 years ago

The thallium Subscript 81 Superscript 208 Baseline Tl nucleus is radioactive, with a half-life of 3.053 min. At a given instant,

Genrish500 [490]

Answer: (E) 300 bq

Explanation:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

Radioactive decay process is a type of process in which a less stable nuclei decomposes to a stable nuclei by releasing some radiations or particles like alpha, beta particles or gamma-radiations. The radioactive decay follows first order kinetics.

Half life is represented by $t_{\frac{1}{2}$

Half life of Thallium-208 = 3.053 min

Thus after 9 minutes , three half lives will be passed, after ist half life, the activity would be reduced to half of original i.e. $\frac{2400}{2}=1200$ , after second half life, the activity would be reduced to half of 1200 i.e. $\frac{1200}{2}=600$ , and after third half life, the activity would be reduced to half of 600 i.e. $\frac{600}{2}=300$ ,

Thus the activity 9 minutes later is 300 bq.

7 0

3 years ago