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3 years ago

If a bar magnet's neutral region is broken into tow, what will mist likely occur

2 answers:

7 0

The answer is C. The north post of one magnet pulls in the south shaft of a moment magnet, while the north shaft of one magnet repulses the other magnet's north shaft. So we have the normal saying: like shafts repulse, dissimilar to posts draw in. A magnet makes an undetectable region of attraction surrounding it called an attractive field.

Korolek [52]3 years ago

7 0

Assuming that the division of the magnet was gentle in nature, so as to not disturb the alignment of the domains, the answer is B. each of the two segments of the original bar magnet will have a north and a south pole. This is due to the fact that a magnet is essentially filled with bundles of magnetic domains, each having its north pole facing towards the magnet's north pole and its south pole facing the magnet's south pole. Therefore, cutting gently will only expose the poles from the middle of the magnet.

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a steel cylinder is left out in the sun the pressure at 2:00 pm was 1014 kpa at 33.0 c at 7:00 am at a temperature of 21.4c what

e-lub [12.9K]

The easiest way is to use the Law of Gay-Lussac. This law states that there is a direct relation between the temperature in Kelvin of a gas and the pressure.

Then, namig p the pressure and T the temperature in Kelvin and using subscripts for every state:

p/T is constant ==> p_1 / T_1 = p_2/T_2

From which you obtain:

p_2 = [p_1 / T_1] * T_2

T_1 = 33.0 + 273.15 = 306.15 K
T _2 = 21.4 + 273.15 = 294.55 K

p_1 = 1014 kPa

p_2 = 1014 kPa * 294.55 K / 306.15 K = 975.6 kPa

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3 years ago

In a chemical equation, the sum of the masses ______.

Readme [11.4K]

C. Of the products is equal to the reactants.

Good luck out there! :)

5 0

3 years ago

Read 2 more answers

How many moles of water would form the reaction of exactly 58.3 grams of magnesium hydroxide

Marat540 [252]

Answer:

$\boxed{\text{2.00 mol}}$

Explanation:

We know we will need a balanced chemical equation with masses and molar masses, so, let's gather all the information in one place.

You don't tell us what the reaction is, but we can solve the problem so long as we balance the OH.

M_r: 58.32

Mg(OH)₂ + … ⟶ … + 2HOH

m/g: 58.3

(a) Moles of Mg(OH)₂

$\text{Moles of Mg(OH)$_{2}$} =\text{58.3 g Mg(OH)$_{2}$} \times \dfrac{\text{1 mol Mg(OH)$_{2}$}}{\text{58.32 g Mg(OH)$_{2}$}}\\\\=\text{0.9997 mol Mg(OH)$_{2}$}$

(b) Moles of H₂O

The molar ratio is 2 mol H₂O = 1 mol Mg(OH)₂.

$\text{Moles of H$_{2}$O}= \text{0.9995 mol Mg(OH)$_{2}$} \times \dfrac{\text{2 mol {H$_{2}$O}}}{ \text{1 mol Mg(OH)$_{2}$}}\\\\= \textbf{2.00 mol H$_{2}$O}$

The reaction will form $\boxed{\textbf{2.00 mol}}$ of water.

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3 years ago

Evaluate each of the statements below. Select those that accurately describe the role of genes and chromosomes in

Mashcka [7]

Answer:

HEY CAN YOU POST YOUR LAST QUESTION AGAIN? CAUSE I HAVE THE ANSWER

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3 years ago

What type of compound does the formula CuCl2 represent? A) ionic salt B) covalent molecule

Salsk061 [2.6K]

Answer: A) ionic salt

Explanation: Chlorine has a high electronegativity of 3.0. Copper like most metals has a low electronegativity, So the bonding is ionic making the compound an ionic salt.

3 0

3 years ago

Read 2 more answers