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Dima020 [189]
3 years ago
7

14. הכניסו בקבוק מים במסה של 100 גר' לתוך מקפיא, מה מסתו של הקרח לאחר שהמים קפאו ?

Chemistry
1 answer:
Andrei [34K]3 years ago
8 0

Answer:

whattt, can u write it in English so i can help you

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Which item is made from an alloy? A. steel tray B. glass plate C. credit card D. copper wire
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Not sure if this is correct but i would choose the steel tray.

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What was the open-range system ​
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Valence Bond theory predicts that tin will use what hybrid orbitals in Snf5 -1​
LUCKY_DIMON [66]

Answer:

sp3d

Explanation:

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In forming the compound Snf5^ -1, we have to hybridize the following orbitals on tin; 5p, 5d and 6s orbitals. This gives us a set of sp3d hybrid  hence the answer.

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3 years ago
What is the hybridization of carbon in nco-?
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The burning of a sample of propane
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Answer:

70.0°C

Explanation:

We are given;

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We are required to determine the final temperature of water;

Taking the initial temperature is x°C

We know that the specific heat of water is 4.18 J/g°C

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In this case;

Change in temp =(x-20)° C

Therefore;

104600 J = 500 g × 4.18 J/g°C × (x-20)

104600 J = 2090x -41800

146400 = 2090 x

  x = 70.0479

     =70.0 °C

Thus, the final temperature of water is 70.0°C

7 0
3 years ago
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