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VLD [36.1K]
4 years ago
10

Which statement best describes what a circle graph shows?

Chemistry
2 answers:
vichka [17]4 years ago
6 0
The answer is to the question would be B
Masteriza [31]4 years ago
4 0

I think it's B I'm sorry if I get that wrong. Idk

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Please help!!! Is it balanced or unbalanced?
Black_prince [1.1K]

Hey there!

I believe the answer you are looking for is Unbalanced!

If I am incorrect I am very sorry and would love any feedback.

Have a nice day, and Happy Halloween!

6 0
4 years ago
A scientist wants to use a model to help present the results of his detailed scientific investigation.
masha68 [24]

Answer:

Because the model makes the concepts easier to understand

Explanation:

Models are created to give a visual of every aspect of an experiment. This allows for a better understanding across the board for everyone.

8 0
3 years ago
Titanium(IV) chloride decomposes to form titanium and chlorine, like this:_____.
leonid [27]

Answer:

K = 8.6x10⁻⁶

Explanation:

<em>a chemist finds that a 5.2L reaction vessel...</em>

To solve this question we need first to find the equation of the equilibrium constant using the chemical eqiation:

TiCl₄(l) ⇄ Ti(s) + 2Cl₂(g)

The equilibrium constant expression is:

K = [Cl₂]²

<em>Because equilibrium constant is defined as the ratio berween concentrationa of products over reactant powered to its reaction coefficient. But pure liquids as TiCl₄(l) and pure solids as Ti(s) are not taken into account</em>

<em />

Now, we need to find the molar concentration of Cl₂, [Cl₂]:

<em>Moles Cl₂ -Molar mass: 70.9g/mol-:</em>

1.08g * (1mol / 70.9g) = 0.0152 moles / 5.2L =

2.93x10⁻³M = [Cl₂]

K = (2.93x10⁻³)²

<h3>K = 8.6x10⁻⁶</h3>
7 0
3 years ago
Name at least two Benefits of using models in science
Alex787 [66]
They provide a way to understand the processes that might otherwise be outside the scope of humans. Also they provide scientists with foundations for further experiments and hypothesis.
6 0
3 years ago
Read 2 more answers
Please Help ! Express the quantity 255000m in each unit. <br><br> a. mm <br><br> c. cm
ASHA 777 [7]
255000000 mm
25500000 cm
7 0
3 years ago
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