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iren2701 [21]
4 years ago
10

Mrs. Rushing fills a balloon with hydrogen gas to demonstrate its ability to burn. Which combination could she

Chemistry
2 answers:
Mars2501 [29]4 years ago
8 0

Answer:

H2SO, and CaCO

Explanation:

kolezko [41]4 years ago
4 0

Answer:

D. Mg and HCl

Explanation:

I did this on ed

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Atoms of metals tend to1) lose electrons and form negative ions2) lose electrons and form positive ions3) gain electrons and for
timofeeve [1]

Answer:

2) lose electrons and form positive ions

Explanation:

Metals are generally electropositive elements due to the fact that they lose electrons to their non-metal counterparts and hence, form CATIONS or positively charged atoms. Non-metals, on the contrary, gains electrons and become negatively charged i.e form anions. These ions combine to form stable ionic compounds.

This electron-losing characteristics of metals make them have properties that includes: good conductors of electricity and heat, being lustrous etc.

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Which of the following objects does not decompose?
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Mg₃N₂ is the formula of magnesium nitride.

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Find the no. Of electron involved in the electro deposition of 63.5g of cu from a solution of cuso4
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This is a redox reaction, meaning reduction-oxidation reaction. This represents the reaction in one side of the electrode in an electrolysis set-up. First, we find the oxidation number of Cu in CuSO4:

(ox. # of Cu)+ ox.# of S + 4(ox.# of oxygen) = 0
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CuSO4 ---> Cu + SO42-
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The stoichiometric equation would be 2 electrons per mole Copper. Copper has a molar mass of <span>63.5 g/mol. Then, it would only need 2 electrons.


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