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iren [92.7K]
3 years ago
8

What is the minimum amount of heat required to completely melt 20.0 grams of ice af it's melting point

Chemistry
1 answer:
Veseljchak [2.6K]3 years ago
8 0
The answer is 6608J ..
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Scientists use bacteria to make medicines,<br><br> o True<br> o False
sladkih [1.3K]

Answer:

true they do I yes they do

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2 years ago
What temperature scale do weather reporters in the United states use to tell you how hot it is outside?
mr Goodwill [35]
US uses the <span>Fahrenheit temperature scale.</span>
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3 years ago
Mass
DiKsa [7]

The molecular formula =C₆H₁₂O₆

<h3>Further explanation</h3>

Given

6.00 g of a certain compound X

The molecular molar mass of 180. g/mol

CO₂=8.8 g

H₂O=3.6 g

Required

The molecular formula

Solution

mass C in CO₂ :

= 1.12/44 x 8.8

= 2.4 g

mass H in H₂O :

= 2.1/18 x 3.6

= 0.4 g

Mass O in compound :

= 6-(2.4+0.4)

= 3.2 g

Mol ratio C : H : O

= 2.4/12 : 0.4/1 : 3.2/16

= 0.2 : 0.4 : 0.2

= 1 : 2 : 1

The empirical formula : CH₂O

(CH₂O)n=180 g/mol

(12+2+16)n=180

(30)n=180

n=6

(CH₂O)₆=C₆H₁₂O₆

7 0
3 years ago
3)<br>0.09 moles of sodium sulfate in 12 mL of solution.<br>​
adelina 88 [10]

Answer:

7.5 M

Explanation:

In order to find a solution's molar concentration, or molarity, you need to determine how many moles of solute, which in your case is sodium sulfate,  

Na

2

SO

4

, you get in one liter of solution.

That is how molarity was defined -- the number of moles of solute in one liter of solution.

So, you know that you have  

0.090

moles of solute in  

12 mL

of solution. Your goal here will be to scale up this solution by using this information as a conversion factor to help you determine the number of moles of solute present in

6 0
2 years ago
Which examples of science rather than pseudoscience
Sladkaya [172]

Here's three i can name off the top of my head.

Physics , Chemistry  and Biology are all real types of science.

7 0
3 years ago
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