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Karo-lina-s [1.5K]
3 years ago
15

What is the overall charge of a Aluminum atom that loses 3 electrons​

Chemistry
1 answer:
Rudik [331]3 years ago
8 0
It’s charge was neutral due to the equal number of protons and electrons. when it becomes an ion it loses 3 electrons leaving behind only 10. the answer is 10. the equation is +13 +(-10)=+3
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Out of milk and water which would be the base and the acid??
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3 years ago
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Question 2 The metal molybdenum becomes superconducting at temperatures below 0.90K. Calculate the temperature at which molybden
LenKa [72]

Answer:

Temperature at which molybdenum becomes superconducting is-272.25°C

Explanation:

Conductor are those hard substances which allows path of electric current through them. And super conductors are those hard substances which have resistance against the flow of electric current through them.

As given, molybdenum becomes superconducting at temperatures below 0.90 K.

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T(°C)=273.15-T(K)

Molybdenum becomes superconducting in degrees Celsius.

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Temperature at which molybdenum becomes superconducting is -272.25 °C

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4 years ago
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3 years ago
1. If 100 mL of a gas, originally at 760 torr, is compressed to a pressure of 120 kPa
marshall27 [118]

Answer : The final volume will be, 84.4 mL

Explanation :

Boyle's Law : It is defined as the pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}{V}

or,

P_1V_1=P_2V_2

where,

P_1 = initial pressure = 760 torr

P_2 = final pressure = 120 kPa = 900 torr   (1 kPa = 7.5 torr)

V_1 = initial volume = 100 mL

V_2 = final volume = ?

Now put all the given values in the above equation, we get:

760torr\times 100mL=900torr\times V_2

V_2=84.4mL

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3 0
3 years ago
A soft drink contains 63 g of sugar in 378 g of H2O. What is the concentration of sugar in the soft drink in mass percent
Doss [256]

Answer:

\% m/m= 14.3\%

Explanation:

Hello,

In this case, the by mass percent is computed as shown below:

\% m/m=\frac{m_{solute}}{m_{solute}+m_{solvent}} *100\%

Whereas the solute is the sugar and the solvent the water, therefore, the concentration results:

\% m/m=\frac{63g}{63g+378g} *100\%\\\\\% m/m= 14.3\%

Best regards.

3 0
3 years ago
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