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3 years ago

Why is bronze considered an alloy?

Chemistry

2 answers:

natulia [17]3 years ago

5 0

Answer:

Option B, Bronze is made of the metals copper and tin.

Alloys are essentially materials that consist of two or more metal elements

Explanation:

Serggg [28]3 years ago

3 0

Option B, Bronze is made of the metals copper and tin.

Alloys are essentially materials that consist of two or more metal elements.

-T.B.

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How many grams of chlorine are required in order to consume 100g of sodium chloride?

11111nata11111 [884]

Answer:

92.1 g

Explanation:

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3 years ago

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Which of the following is not a correct formula? A)Ba2O B)Ca3N2 C)KCl D)Li2S

love history [14]

Answer:- A. $Ba_2O$ is not the correct formula.

Explanations:- Charge for Ba is +2 and charge for O is -2, Here the charges are in equal and opposite so their ratio is 1:1 and hence the formula must be BaO and not $Ba_2O$ .

Rest of the formulas are correct as charge for Ca is +2 and charge for N is -3 . On criss cross we get the formula $Ca_3N_2$ .

Charge for K is +1 and charge for Cl is -1 and so KCl is correct.

Charge for Li is +1 and that for S is -2. On criss cross we get the formula $Li_2S$ .

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3 years ago

Wich has more energy rolling down a hill - a bowling ball or soccer ball? Explain your answer

goldfiish [28.3K]

Answer:

Bowling ball

Explanation:

They are traveling at the same speed, but the bowling ball has more mass. The bowling ball has more kinetic energy because more force is needed to stop the rolling bowling ball. Two balls with different masses moving at the same speed have different amounts of kinetic energy.

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3 years ago

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A galvanic (voltaic) cell consists of an electrode composed of nickel in a 1.0 M nickel(II) ion solution and another electrode c

Andre45 [30]

Answer: The standard potential of the cell is 0.77 V

Explanation:

We know that:

$E^o_{Ni^{2+}/Ni}=-0.25V\\E^o_{Cu^{+}/Cu}=0.52V$

The substance having highest positive $E^o$ reduction potential will always get reduced and will undergo reduction reaction.

The half reaction follows:

Oxidation half reaction: $Ni(s)\rightarrow Ni^{2+}(aq)+2e^-$

Reduction half reaction: $Cu^{+}(aq)+e^-\rightarrow Cu(s)$ ( × 2)

To calculate the $E^o_{cell}$ of the reaction, we use the equation:

$E^o_{cell}=E^o_{cathode}-E^o_{anode}$

Substance getting oxidized always act as anode and the one getting reduced always act as cathode.

Putting values in above equation follows:

$E^o_{cell}=0.52-(-0.25)=0.77V$

Hence, the standard potential of the cell is 0.77 V

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3 years ago

How many formula units are there in 2.3g of NH4SO2

Murrr4er [49]

1.7 x 10 to the power of 22 formula units

A formula is the empirical formula of any ionic or covalent network solid compound used as an independent entity for stoichiometric calculations.

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3 years ago