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bearhunter [10]
3 years ago
12

PLS HELP

Chemistry
1 answer:
vivado [14]3 years ago
5 0

Answer:

D. All of these.

Explanation:

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If a sample of oxygen gas originally at from 171.4 K has its temperature increased to 288.4 K and
julia-pushkina [17]

Answer:

V₂ = 0.95 L

Explanation:

Given data:

Initial temperature of gas = 171.4 K

Final temperature of gas = 288.4 K

Final volume = 1.6 L

Initial volume = ?

Solution:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₁ = V₂T₁ /T₂

V₂ = 1.6 L × 171.4 K / 288.4 k

V₂ = 274.24 L.K / 288.4 K

V₂ = 0.95 L

6 0
3 years ago
An artifact contains 1/4 as much carbon-14 as the atmosphere. How old is the artifact
musickatia [10]
The artifact appears to have gone through 2 half-lives. 
One half-life for Carbon-14 is 5730 years.
After 5730 years, there would be 1/2 as much carbon-14
After another 5730 years, there would be 1/4 as much carbon-14

The answer is roughly 11,460 years
4 0
3 years ago
Alluvial fans form mostly in what regions
maxonik [38]

Answer:

what is this

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6 0
3 years ago
If the removal of many plants and trees increase in a forest, what effect could this have on the carbon dioxide and oxygen cycle
harina [27]

Answer:

I think c

Explanation:

8 0
2 years ago
Read 2 more answers
Determine the oxidation state of Cl in CIO3. A +3 B +7 C 0 D +1 E +5
Crazy boy [7]

Answer:

E.) +5

Explanation:

Oxygen always has -2 oxidation number.

Because there are 3 oxygen atoms present, this means oxygen is contributing a -6 charge (-2 x 3 = -6).

Therefore, since the overall molecule is -1, chlorine must have an oxidation number of +5 to cancel all of the negative charges but 1.

You can also think of the problem like an equation. In this equation, "x" is the oxidation number of chlorine, (-2) is the oxidation number of oxygen, (3) is the number of oxygen atoms present, and the equation is set equal to (-1) because that is the overall charge of the molecule.

x - 2(3) = -1

x - 6 = -1

x = 5

4 0
2 years ago
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