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Anarel [89]
3 years ago
7

Text me lets play imessage gamessssss i need new friends:) 832-525-6333

Chemistry
2 answers:
Leno4ka [110]3 years ago
8 0
Yessss Omg so hard to get like 20 characters.
Sergio [31]3 years ago
3 0

Answer:

Bet texting you right now!

Explanation:

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svetlana [45]
The formula you need is: heat= specific heat x mass x ΔT

specific heat= 0.46 j/g-C
mass= 100.0 grams
ΔT= 40.2 - 15.0= 25.2C

heat= (0.46) x (100.0) x (25.2)=  1159.2 joules or 1200 joules (rounded off)

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LekaFEV [45]

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8 0
3 years ago
A sample of a pure compound that weighs 60.3 g contains 20.7 g Sb (antimony) and 39.6 g F (fluorine). What is the percent compos
Volgvan

Answer:

The percent composition of fluorine is 65.67%

Explanation:

Percent Composition is a measure of the amount of mass an element occupies in a compound. It is measured in percentage of mass.

That is, the percentage composition is the percentage by mass of each of the elements present in a compound.

The calculation of the percentage composition of an element is made by:

percent composition element A=\frac{total mass of element A}{mass of compound} *100

In this case, the percent composition of fluorine is:

percent composition of fluorine=\frac{39.6 g}{60.3 g} *100

percent composition of fluorine= 65.67%

<u><em>The percent composition of fluorine is 65.67%</em></u>

4 0
4 years ago
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