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1 year ago

Motion is a change in an object

Chemistry

2 answers:

lyudmila [28]1 year ago

8 0

Answer:

motion is the phenomenon in which an object changes its position over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time.

Explanation:

Vanyuwa [196]1 year ago

5 0

Answer:

why is this in chemistry? this is physics.

Explanation:

Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time.

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4. Describe the movement of the water molecules at cold temperatures.

kenny6666 [7]

Answer:

Point out to students that molecules of hot water are moving faster and are slightly further apart. The molecules of cold water are moving slower and are a little closer together. If students do not notice a difference, move the slider all the way to the left again and then quickly to the right.

2. How do molecules move in cold water?

Compare the speed of molecules in hot water compared to molecules in cold water? Water molecules move faster in hot water and slower in cold water. water molecules in cold, room temperature, and hot water. most of the liquid.

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2 years ago

Give the number of protons and electrons in each of these ions or atoms (show your work) Cs. Ba , .s

Morgarella [4.7K]

Explanation:

The sum of total number of protons present in an element is known as atomic number of the element.

As atomic number of Cs is 55.

And, it is known that for a neutral atom the number of protons equal to the number of electrons.

Since, no charge in present on given Cs atom it means that it is neutral in nature. Hence, number of protons and electrons present in Cs are 55.

For Ba, it is also neutral in nature and atomic number of barium is 56. Hence, number of protons and electrons present in Ba are 56.

For S, there is no charge on it so it is also neutral in nature. Atomic number of S is 16. Hence, number of protons and electrons present in S are 16.

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2 years ago

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irga5000 [103]

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1 year ago

Read 2 more answers

The gas arsine, AsH3, decomposes as follows: In an experiment at a certain temperature, pure AsH3(g) was placed in an empty, rig

bazaltina [42]

The equilibrium pressure of $H_{2}$ is 288 torr. and $K_{p}$ for this reaction is 0.786 atm.

from the reaction:- $2AsH_{3}$ ⇄ $2As + 3H_{2}$

initial concentration 392 torr. 0

at equilibrium. 392 - $2x$ . $3x$

and the final pressure in the flask = 488 torr.

Hence,

$( 392 - 2x ) + 3x = 488\\ x = 488-392\\x = 96 torr.$

The partial pressure of $H_{2}$ is 3 × 96 = 288 torr.

and $AsH_{3}$ is 392 - ( 2 × 96 ) = 392 - 192 = 200 torr.

Now, to find $K_{p}$ for this reaction, we will use $K_{p} = \frac{(P_{H_{2} })^{2} }{( P_{AsH_{3} } )^{2}}$

putting all the values, we get,

$K_{p} = \frac{(288)^{3} }{(200)^{2} }$

= 597.1968 torr.

= 0.786 atm. ( 1 atm = 760 torr. )

what do you mean by equilibrium?

Equilibrium in chemistry is the phase that exists when a chemical reaction and its opposite reaction happen at the same rates. This word's Latin origin dates back to the prefix aequi-, which means equal, and lbra, that indicates scale or balance.

Learn more about equilibrium reaction here:-

brainly.com/question/15118952

#SPJ4

3 0

1 year ago

9. _____________ have a mass number of 0.

lisabon 2012 [21]

Answer:

sheeesh thats a lot

Explanation:

4 0

2 years ago