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asambeis [7]
1 year ago
13

Name two physical properties that could be used to distinguish between water and ethanol.

Chemistry
1 answer:
miskamm [114]1 year ago
8 0

Answer:

boiling point and melting point.

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Which statement correctly explains how magnesium and chlorine combine to form magnesium chloride?
AysviL [449]
You did not include the statements but since magnesium chloride is ionic substance that we know that magnesium and chlorine formed an ionic bond.  Therefore your statement most likely will talk about how one magnesium atom gave up 2 electrons while two chlorine atoms took 1 electron.  The reaction looks like Mg+2Cl⇒MgCl₂.  
I hope this helps.  Let me know in the comments if anything is unclear.
4 0
3 years ago
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How many moles are in 2.8x10^23 atoms of Calcium?
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Answer: 1 mole ➡️ 6.022×10²³ atoms of si.

X mole ➡️ 2.8×10²⁴ atoms of si.

X = 2.8×10×10²³/6.022×10²³

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Explanation:

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harkovskaia [24]
If its sodium it would have 11 electrons
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