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Kobotan [32]
3 years ago
11

Are these correct ?! Please help !!!!!

Chemistry
1 answer:
julsineya [31]3 years ago
6 0
All part B is right.
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Calculate the average atomic mass of a
Vesna [10]

Answer: 207.217 amu

Work:

203.973 amu *(0.014) = 2.855 amu

205.974 amu *(0.241) = 49.639 amu

206.976 amu *(0.221) = 45.741 amu

207.977 amu *(0.524) = 108.979 amu

2.855 + 49.639 + 45.741 + 108.979 = <em><u>207.217amu</u></em>

Explanation:

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2 years ago
“True or False” <br> Stirring can make the dissolving of solute slower
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False

The stirring allows fresh solvent molecules to continually be in contact with the solute. If it is not stirred, then the water right at the surface of the solute becomes saturated with dissolved sugar molecules, meaning that it is more difficult for additional solute to dissolve.

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3 years ago
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The Tyndall effect is a simple process for identifying a compound.
Marianna [84]
The Tyndall Effect is the effect<span> of light scattering in many directions in colloidal dispersion, while showing no light in a true solution. This </span>effect<span> is used to determine whether a mixture is a true solution or a colloid.

Therefore, Tyndall Effect is not a process used to identify compounds. 

I hope my answer has come to your help. Thank you for posting your question here in Brainly.


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4 0
3 years ago
What does the following energy diagram represent?A. Activation energyB. Exothermic reactionC. Specific heat capacityD. Endotherm
inn [45]

Explanation:

We are given the following diagram.

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Answer: D. Endothermic reaction.

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How do I find the over all charge of protons?
d1i1m1o1n [39]
The charge of a proton is always +1
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3 years ago
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