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pashok25 [27]
2 years ago
14

The allotropic form of a non – metal is a good conductor of electricity. Name the nonmetal.

Chemistry
1 answer:
SashulF [63]2 years ago
8 0

Answer:

carbon with graphite as the allotrope

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A piece of an unknown substance weighing 124.0 grams is heated in boiling water to 100.0oc. when the substance is placed in a ca
MakcuM [25]

The heat cause 300g water temperature increase from 20 to 26 celcius. The heat transferred would be: 300g * (26 °C -20 °C) *4.2 joule/gram °C= 7560J

The unknown substance is added to the water, so its final temperature should be the same as the water. The calculation would be:

7560J= 124g * (100-26)* specific heat

specific heat= 7560J / 124g / 74 °C= 0.8238 J/gram °C

3 0
3 years ago
How do I find the moles of OH- which reacted (mol) in the titration. Table Attached
BaLLatris [955]

Answer:

It is equal to the number of moles of acid that reacted. When Oxalic acid is your limiting reactant it is the # of moles of oxalic acid used. When NaOH is your limiting reactant it is equal to the number of moles of NaOH used.

4 0
3 years ago
Why don't noble gases bond?
Luba_88 [7]
<span>Their outer shells are filled So much that they don't need to bond or react with any other atoms.</span>
7 0
3 years ago
Chose all of the correct statements pure vs mixture
GarryVolchara [31]

Answer:

I think that a  pure substance is a form of matter that has a constant composition and properties that are constant throughout the sample. Mixtures are physical combinations of two or more elements and/or compounds.

Explanation:

6 0
3 years ago
What is the pH of a solution that has [H+] of .0042M?
sveticcg [70]

Answer:

pH = 2.4

Explanation:

pH is defined as the negative log of the hydronium concentration.

Thus, we can plug in the given hydronium concentration:

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The pH of the solution is 2.4.

P.S: Although I referred to [H⁺] as hydronium concentration, it is more accurate to express it as [H₃O⁺], though they are interchangeable and means the same thing.

8 0
2 years ago
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