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strojnjashka [21]
4 years ago
7

Bohr model for silicon

Chemistry
1 answer:
Lunna [17]4 years ago
5 0
Hope this answer helps you

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What is the effect of tap water, sea water, and rainwater on the rusting rate of iron?
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The more acidic the solution the faster it rusts. More Na = more rust

Explanation:

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3 years ago
How do you think the invention of the microscope influenced the cell theory?
ikadub [295]
Since cells are hard to see the microscope helped them see. scientist were able to actually see cells in tissues placed under the microscope.
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Is talc and water a colloid?
lisov135 [29]
<h2>NO</h2>

Talc is not soluble in water, but it is slightly soluble in dilute mineral acids. In any case, solving it will keep intact its structure. This is naturally true for the case of silicates, which are characteristics by their insolubility.

A is milk in water, actually is does not have to be in water since milk already is a mixture of fats and water. ... A colloid is just a mixture where a substance of dispersed insoluble particles is suspended throughout another substance. Chalk powder is very little soluble in water therefore this will form an suspension.

5 0
3 years ago
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The monomer of poly(vinyl chloride) has the formula C2H3Cl. If there are 1,565 repeat units in a single chain of the polymer, wh
monitta

Answer:

\large \boxed{9.780 \times 10^{4}\text{ u}}

Explanation:

The molecular mass of a monomer unit is:

C₂H₃Cl = 2×12.01 + 3×1.008 + 35.45 = 24.02 + 3.024 + 35.45 = 62.494 u

For 1565 units,

\text{Molecular mass} = \text{1565 units} \times \dfrac{\text{62.494 u}}{\text{1 unit }} = \mathbf{9.780 \times 10^{4}}\textbf{ u}\\\\\text{The molecular mass of the chain is $\large \boxed{\mathbf{9.780 \times 10^{4}}\textbf{ u}}$}

8 0
3 years ago
The quantities 1 mol and 22.4 L can be used in conversion factors that change moles to volume and volume to moles at STP.
Luden [163]
True. Bc 1 mol and 22.4 L=23.4
6 0
3 years ago
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