4 years ago

Cuso4 is an example of

Chemistry

1 answer:

Harman [31]4 years ago

8 0

Is an example of a chemical element

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Cu2(s)+O2(g)=Cu2O(g)+SO2(g) please help urgent will give brainiest

AysviL [449]

Answer:

2 Cu2S + 3 O2 = 2 Cu2O + 2 SO2

Explanation:

2 Cu2S + 3 O2 = 2 Cu2O + 2 SO2

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3 years ago

A _____ change occurs when a substance changes phase.

guapka [62]

I believe your answer is chemial

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3 years ago

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A solid piece of aluminum (51.0 g) was added to a solution of sodium hydroxide (84.1 g) in water, A balanced equation for this r

EastWind [94]

$M_{Al}=26,98\frac{g}{mol}\\
m=51g\\\\
n=\frac{m}{M_{Al}}=\frac{51g}{26,97\frac{g}{mol}}\approx1,89mol\\\\\\
M_{NaOH}=39,4\frac{g}{mol}\\
m=84,1g\\\\
n=\frac{m}{M_{NaOH}}=\frac{84,1g}{39,4\frac{g}{mol}}\approx2,14mol$

2 NaOH(aq)+ 2 Al(s)+ 2 H₂O → 2 NaAlO₂(aq)+ 3 H₂(g)
 2mol : 2mol : 3mol
2,14mol : 1,89mol : 2,835mol
remains completely consumed
2,14-1,89=0,25mol

A) Al

B)

$M_{NaOH}=39,4\frac{g}{mol}\\
n=0,25mol \Rightarrow \ \ \ m=n*M_{NaOH}=0,25mol*39,4\frac{g}{mol}=9,85g$

C)
$n=2,835mol\\
M_{H_{2}}=2,02\frac{g}{mol} \Rightarrow \ \ \ m=n*M_{H_{2}}=2,835mol*2,02\frac{g}{mol} \approx 5,73g$

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3 years ago

Which answer best describes this reaction?

Maksim231197 [3]

The photos for the reaction arent here so ill insert them below

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4 years ago

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How do mutualism and parasitism compare

Trava [24]

A) would be the only correct one from my knowledge. Mutualism is when neither Organism is harmed and both live mutually together, and Parasitism is when an Organism is living on the, ex. nutrients, of the host.

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3 years ago

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