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vivado [14]
3 years ago
6

Melissa burned her hand on the stove. Why did putting her hand in a bowl of cold water make the burn less severe?

Chemistry
1 answer:
larisa [96]3 years ago
8 0

The correct answer would be D.

Heat transferred from her hand to the water by conduction.


Hope this helps,

Davinia. (:

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3 years ago
when a number in scientific notation contains a significant zero, is that zero also significant in the expanded notation? give t
AlexFokin [52]
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4 0
4 years ago
If is found that 24.68 mL of .1165 M NaOH is needed to titrate .2931 g of an unknown acid to the phenolphthalein end point. Calc
Lemur [1.5K]

Answer: The equivalent mass of the acid is 83.16 grams

Explanation:

To calculate the number of moles for given molarity, we use the equation:

\text{Moles of solute}={\text{Molarity of the solution}}\times{\text{Volume of solution (in L)}}  

Molarity of NaOH solution = 0.1165 M

Volume of NaOH solution = 24.68 mL = 0.02468 L

Putting values in equation 1, we get:

\text{Moles of} NaOH={0.1165M}\times{0.02468L}=2.875\times 10^{-3}moles=2.875\times 10^{-3}geq    

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For end point:  gram equivalents of acid =  gram equivalents of base = 2.875\times 10^{-3}

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{\text {Equivalent mass}}=83.16g

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5 0
3 years ago
1)Fe+ Cl2 → FeCl,<br> How to balance this <br> 2)Fe+ O2 →Fe2O3<br> How to balance this
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4 0
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8 0
3 years ago
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