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Dmitriy789 [7]
4 years ago
14

element that is neither a non-metal nor a metalloid, and is characterized by thin, dark grey filaments exhibiting magnetic prope

rties
Chemistry
1 answer:
Digiron [165]4 years ago
6 0
Yes would you explain better
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How much energy is added to change 180g of liquid water to gas at 100 degrees Celsius
Finger [1]

Answer:

40.7 kJ  

Step-by-step explanation:

The formula for the heat, q, needed to evaporate a liquid is

q = mΔHvap


<em>Data:  </em>

        m = 180 g

ΔHvap = 2260 J/g

<em>Calculation: </em>

q = 180 g × 2260 /1

q = 40 700 J = 40.7 kJ

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4 0
4 years ago
What is the mass in grams of 2.50 mol of ammonia vapor, NH3?
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Molar mass:-

\\ \tt\longmapsto 14+3(1)=17g/mol

Now

\\ \tt\longmapsto Given\:mass=No\;of\:moles\times Molar\;mass

\\ \tt\longmapsto Given\:mass=17(2.5)

\\ \tt\longmapsto Given\:mass=42.5g

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3 years ago
I need help is it A B or C second Trimester B First Trimester or C Third Trimester?
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Answer:

A

Explanation:

Ive taken this already

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Explanation: Because it's in the earth atmosphere

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