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4 years ago

7

The energy that moving electric charges carry is called

1 answer:

katovenus [111]4 years ago

8 0

<span>The answer is electrical energy. This is the energy freshly resulting from electric potential energy or kinetic energy. When lightly used to label energy engaged or perhaps brought by an electrical circuit (for instance, one providing by an electric power usefulness) "electrical energy" talks about energy which has been transformed from electric potential energy. </span>

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Given the unbalanced equation: ___Al2(SO4)3+___Ca(OH)2—>___Al(OH)3+__CaSO4

nasty-shy [4]

Answer:

The answer to your question is letter B. 9

Explanation:

Unbalanced reaction

Al₂(SO₄)₃ + Ca(OH)₂ ⇒ Al(OH)₃ + CaSO₄

Reactants Elements Products

2 Al 1

3 S 1

14 O 7

1 Ca 1

2 H 3

Balanced reaction

Al₂(SO₄)₃ + 3Ca(OH)₂ ⇒ 2Al(OH)₃ + 3CaSO₄

Reactants Elements Products

2 Al 2

3 S 3

18 O 18

3 Ca 3

6 H 6

The sum of the coefficients is 1 + 3+ 2+ 3 = 9

8 0

3 years ago

Water's ________ specific heat makes it heat up and cool down slowly; this stability has helped water support life.

Valentin [98]

Answer:

high

Explanation:

8 0

3 years ago

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It takes 495.0 kJ of energy to remove 1 mole of electron from an atom on the surface of sodium metal. How much energy does it ta

Zigmanuir [339]

Answer:

$\lambda=241.9\ nm$

Explanation:

The work function of the sodium= 495.0 kJ/mol

It means that

1 mole of electrons can be removed by applying of 495.0 kJ of energy.

Also,

1 mole = $6.023\times 10^{23}\ electrons$

So,

$6.023\times 10^{23}$ electrons can be removed by applying of 495.0 kJ of energy.

1 electron can be removed by applying of $\frac {495.0}{6.023\times 10^{23}}\ kJ$ of energy.

Energy required = $82.18\times 10^{-23}\ kJ$

Also,

1 kJ = 1000 J

So,

Energy required = $82.18\times 10^{-20}\ J$

Also, $E=\frac {h\times c}{\lambda}$

Where,

h is Plank's constant having value $6.626\times 10^{-34}\ Js$

c is the speed of light having value $3\times 10^8\ m/s$

So,

$79.78\times 10^{-20}=\frac {6.626\times 10^{-34}\times 3\times 10^8}{\lambda}$

$\lambda=\frac{6.626\times 10^{-34}\times 3\times 10^8}{82.18\times 10^{-20}}$

$\lambda=\frac{10^{-26}\times \:19.878}{10^{-20}\times \:82.18}$

$\lambda=\frac{19.878}{10^6\times \:82.18}$

$\lambda=2.4188\times 10^{-7}\ m$

Also,

1 m = 10⁻⁹ nm

So,

$\lambda=241.9\ nm$

6 0

3 years ago

Which of the following compounds is least soluble in water?

hjlf

Answer:

3) iron (iii) hydroxide

Explanation:

4 0

3 years ago

What is the mass in grams of 17.46 mL m L of acetone?

Crazy boy [7]

Answer:

17,46gram

Explanation:

because 1l is egal to kg

4 0

3 years ago

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