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3 years ago

How are copper sulfate and copper sulfide different in term of the elements they contain

2 answers:

8 0

Copper sulphide has the formula CuS and copper sulphate is CuSO4

CuS is a compound of sulphur and copper only while CuSO4 has these 2 elements plus Oxygen

Dovator [93]3 years ago

6 0

Answer: Copper sulfate has oxygen element in it while copper sulfide does not have.

Explanation:

Copper sulfate is formed by the combination of copper and sulfate ions. The chemical formula for this compound is $CuSO_4$

It is formed by the combination of atoms of copper, sulfur and oxygen elements.

Copper sulfide is formed by the combination of copper and sulfide ions. The chemical formula for this compound is $CuS$

It is formed by the combination of atoms of copper and sulfur elements.

Hence, copper sulfate has oxygen element in it while copper sulfide does not have.

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B. 4.75 × 10-4 is the answer

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3 years ago

a skateboarder wants to skate down the ramp at a skate park he will want the forces acting on him to be

kvasek [131]

Answer:

increase

Explanation:

At the skate park when a skateboarder wants to skate down a ramp, the skate boarder wishes to move faster and with speed so that it help him to skate more time. This can only be achieved if the all the forces acting on him will increase as he skates down the ramp without much of the frictional force acting on the wheels of the skate board. The less friction force acts on the wheel, the more he can skate with more speed.

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3 years ago

The equation K + NaOH => Na + KOH should it react, true or false?

Andru [333]

Answer:

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3 years ago

I need an answer ASAP What important role do sand dunes play?

Nezavi [6.7K]

Answer:

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Explanation

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3 years ago

Determain the number of moles in 2.24l of ch4 at stp

valkas [14]

Answer:

0.1 mole of CH₄

Explanation:

From the question given above, the following data were obtained:

Volume of CH₄ = 2.24 L

Number of mole of CH₄ =?

The number of mole of CH₄ can be obtained as follow:

Recall:

1 mole of a gas occupy 22.4 L at stp. This implies that 1 mole of CH₄ occupies 22.4 L at stp.

22.4 L = 1 mole of CH₄

Therefore,

2.24 L = 2.24 × 1 mole of CH₄ / 22.4

2.24 L = 0.1 mole of CH₄.

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3 years ago