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3 years ago

Like charges are attracted to one another. True False

Chemistry

2 answers:

Natali5045456 [20]3 years ago

7 0

Answer:

The correct answer is False.

Explanation:

Different from the force of attraction between two objects with opposite loads, two objects with similar load repel each other. A negatively charged object will exert a repulsive force on a second negatively charged object. This repulsive force will separate the two equally charged objects.

Have a nice day!

wariber [46]3 years ago

4 0

False, because the attractive forces between two object with opposite charges would be attracted to one another. The same charges will repeal just think like it was a magnetic with a + and - and when you put them together they stay away from each other.

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A gas occupies 200ml at a temperature of 26 degrees Celsius and 76mmHg pressure. Find the volume at -3degree Celsius with the pr

sergey [27]

Answer:

184.62 ml

Explanation:

Let $p_1, v_1,$ and $T_1$ be the initial and $p_2, v_2,$ and $T_2$ be the final pressure, volume, and temperature of the gas respectively.

Given that the pressure remains constant, so

$p_1=p_2$ ...(i)

$v_1$ = 200 ml

$T_1= 26 ^{\circ}C = 273+26 =299$ K

$T_2= 3 ^{\circ}C = 273+3 =276$ K

From the ideal gas equation, pv=mRT

Where p is the pressure, v is the volume, T is the temperature in Kelvin, m is the mass of air in kg, R is the specific gas constant.

For the initial condition,

$p_1v_1=mRT_1 \\\\mR= \frac{p_1v_1}{T_1}\cdots(ii)$

For the final condition,

$p_2v_2=mRT_2 \\\\mR= \frac{p_2v_2}{T_2}\cdots(iii)$

Equating equation (i), and (ii)

$\frac{p_1v_1}{T_1}=\frac{p_2v_2}{T_2}$

$\frac{v_1}{T_1}=\frac{v_2}{T_2}$ [from equation (i)]

$v_2=\frac{T_2}{T_1} \times v_1$

Putting all the given values, we have

$v_2=\frac{276}{299} \times 200 = 184.62 \; ml$

Hence, the volume of the gas at 3 degrees Celsius is 184.62 ml.

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3 years ago

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Anna11 [10]

Answer:

1) donate an H+ ion

Explanation:

option 1 is correct

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Answer:

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Explanation:

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Answer:

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Explanation:

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A 76.00-pound flask of mercury costs $151.50. The density of mercury is 13.534 g/cm3.

Agata [3.3K]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

Please see below solution:

1 lb Hg x (151.50/76 lb) = cost of 1 lb.
<span>cost 1 lb x (1g/453.6 g) = cost of 1 g.</span>

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