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2 years ago

What is a plate boundary

Chemistry

2 answers:

garik1379 [7]2 years ago

8 0

Answer:

Plate boundaries are the edges where two plates meet. Most geologic activities, including volcanoes, earthquakes, and mountain building, take place at plate boundaries. ... Divergent plate boundaries: the two plates move away from each other. Convergent plate boundaries: the two plates move towards each other.

Explanation:

AURORKA [14]2 years ago

5 0

The zone of motion between two plates called plate boundary. Depending on relative motions of adjacent plates, the plate boundaries are classified in 3 groups:

Constructive (divergent)
Destructive (convergent)
Conservative (transform fault

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I would like to know the meaning of the electrostatics? if someone knew please tell me

Andreyy89

Electrostatics is a branch of physics that deals with the phenomena and properties of stationary or slow-moving electric charges. :) Hope this helps

6 0

3 years ago

Calculate the pH at of a 0.10 Msolution of anilinium chloride . Note that aniline is a weak base with a of . Round your answer t

notsponge [240]

The question is incomplete, here is the complete question:

Calculate the pH at of a 0.10 M solution of anilinium chloride $(C_6H_5NH_3Cl)$ . Note that aniline $(C6H5NH2)$ is a weak base with a $pK_b$ of 4.87. Round your answer to 1 decimal place.

Answer: The pH of the solution is 5.1

Explanation:

Anilinium chloride is the salt formed by the combination of a weak base (aniline) and a strong acid (HCl).

To calculate the pH of the solution, we use the equation:

$pH=7-\frac{1}{2}[pK_b+\log C]$

where,

$pK_b$ = negative logarithm of weak base which is aniline = 4.87

C = concentration of the salt = 0.10 M

Putting values in above equation, we get:

$pH=7-\frac{1}{2}[4.87+\log (0.10)]\\\\pH=5.06=5.1$

Hence, the pH of the solution is 5.1

8 0

2 years ago

2.4 g of a solid is added to 91 g of water. What is the mass % concentration of the solution?

vladimir2022 [97]

Answer:

2.64%

Explanation:

mass percent = (grams of solute / grams of solution) x 100

mass percent = (2.4 / 91) × 100

mass percent = 2.64% to 3sf

8 0

10 months ago

A giant mass of air that carries warm weather to regions of the earth?

Scilla [17]

Continental air masses are characterized by dry air near the surface while maritime air masses are moist .Polar air masses are characterized by cold air near the surface while tropical air masses are warm or hot. Arctic air masses are extremely cold.
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3 years ago

If an atom has three shell and number of valence electrons are two. Is this element metal

cluponka [151]

Answer:

Metal

Element: Calcium

Valency: 2

Explanation:

To find the element, let's use the periodic table. (Look below)

We already went past 3 shells, just need the 2 electrons after it.

Just skip to the 4th row and count 2 to the right

We end up at Calcium.

Calcium is a metal and we're also on the alkaline earth metals column.

Calcium will need to lose 2 electrons to reach stability, so the valency is 2.

3 0

2 years ago