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Sergeeva-Olga [200]
3 years ago
9

Did I balance this equation correctly

Chemistry
1 answer:
11111nata11111 [884]3 years ago
7 0
Yep! I typed your equation into this website"http://www.endmemo.com/chem/balancer.php" and it said it was balanced
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Can matter be created or<br> destroyed?<br><br> Yes or No
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Answer:

No

Explanation:

The same amount of matter is present before and after chemical and physical changes. Matter cannot be created or destroyed

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3 years ago
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A glass flask whose volume is 1000 cm3 at a temperature of 0.800 C is completely filled with mercury at the same temperature. Wh
ira [324]

Answer: the coefficient of volume expansion of glass = 0.86/(1000 * 52) = 0.00001654 per degree.

Explanation:

Original volume of mercury = 1000 cm3.

The final volume of mercury considering its volume expansion quotient = 1000 + 1000*(1.8*10^-4 *52) = 1000 + 9.36 = 1009.36 cm^3

Considering the glass as a non expanding substance, the complete excess volume of 9.36 cm3 of mercury should have overflown the container, but due to the expansion of glass, the capacity of mercury containment increases and so a lesser amount of mercury flows out.

The amount of mercury that actually flowed out = 8.50 cm3.

So, the expansion of the glass container = 9.36-8.50 = 0.86 cm3.

Using the formula for coefficient of expansion,

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3 years ago
Chemistry what is stoichiometry and the different formulas
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What causes attraction and repulsion between atoms?​
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3 years ago
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