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ch4aika [34]
3 years ago
14

What about matter can change and what does not change according to the law of conservation?

Chemistry
1 answer:
Ivenika [448]3 years ago
7 0
The state of matter or phase (solid liquid or gas). It cannot form new matter or destroy it.
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What mass of chloride gas will react with 96.6g of sodium?
Oduvanchick [21]
Molar mass :

Cl₂ =  71.0 g/mol        Na = 23.0 g/mol

<span>2 Na + Cl</span>₂<span> = 2 NaCl
</span>
2 x 23 g Na -------> 71.0 g Cl₂
96.6 g Na ----------> ?

Mass Cl₂ = ( 96.6 x 71.0 ) / ( 2 x 23 )

Mass Cl₂ = 6858.6 / 46

= 149.1 g of Cl₂

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What physical effect can change the boiling point of a substance?
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5 0
3 years ago
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Scientists have discovered how to use electricity to power cars. Running cars on electricity could help
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Which molecule has the greatest difference in electronegativity (DE) between the two different elements? A. CO_2 B. H_2S C. NH_3
Natalka [10]

Answer:

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ΔEN H₂O → 3.4 - 2.1 = 1.3   Option D.

Explanation:

We should find the Electronegativity data in the Periodic table for all the elements:

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S: 2.6

N: 3.0

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d. ΔEN H₂O → 3.4 - 2.1 = 1.3

3 0
3 years ago
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