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3 years ago

what is an ordered arrangement of particles extends over a long distance in a solid, the material is called?

Chemistry

2 answers:

MrRissso [65]3 years ago

8 0

Answer:

Crystalline

Explanation:

A crystalline solid consist of atoms , molecules and ions that possess a definite repetitive pattern.The crystal structure depict the microscopic arrangement of atom inside it. The constituent(molecules, ions and atoms) that makes up the crystals are well ordered forming a crystal lattice in all direction.

The pattern of formation of the crystals are repetitive. The process of formation of this crystal structure is known as crystallization. Not all solid are crystal form example glass and ice. This orderly arrangement of the particles in the solid usually exist through out the solid. This solid are characterize by long range order with a small repeat unit . The pattern of array is called the crystal lattice. Example of crystalline solid is salt.

Artyom0805 [142]3 years ago

5 0

Plasmodium is the best answer

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Which of the following is NOT a clue that a chemical change has occurred? * 1 point Sugar turns blackish-brown as it is heated.

Vladimir [108]

Answer:

The answer is Steam is produced when water is heated. The color does not change, a precipice is not formed, and the odor does not change!

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3 years ago

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Answer:

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3 years ago

2. How much heat is released when 432g of water cools down from 710C to 180C?

nadya68 [22]

The heat released by the water when it cools down by a temperature difference AT

is Q = mC,AT

where

m=432 g is the mass of the water

C, = 4.18J/gºC

is the specific heat capacity of water

AT = 71°C -18°C = 530

is the decrease of temperature of the water

Plugging the numbers into the equation, we find

Q = (4329)(4.18J/9°C)(53°C) = 9.57. 104J

and this is the amount of heat released by the water.

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3 years ago

In ionic bonding, during the transfer of electrons between two neutrally charged atoms, one electron moves from one atom to anot

forsale [732]

The given question is incomplete . The complete question is :

In ionic bonding, during the transfer of electrons between two neutrally charged atoms, one electron moves from one atom to another. What are the new relative charges between the two atoms?

a. The giving atom and receiving atom are both negatively charged

b. The giving atom is now positively charged and the receiving atom is now negatively charged.

c. The giving and receiving atom are both positively charged

d. The giving atom is now negatively charged and the receiving atom is now positively charged.

Answer: The giving atom is now positively charged and the receiving atom is now negatively charged.

Explanation:

Ionic compounds are formed by transference of electrons between metals and non metals. The bond formed between a metal and a non-metal is always ionic in nature.

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.

Thus when one electron moves from one atom to another, the metal acquires a positive charge and the non metal acquires negative charge.

For example: $NaCl$ is formed by transfer of one electron from sodium to chlorine , thus forming $Na^+$ and $Cl^-$

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2 years ago

Develop a demonstration to show how mass is not the same thing as weight

pychu [463]

This is more of a physics explanation, but here we go.

Mass is a measure of how much "matter" is in an object. Weight is the force applied onto an object by gravity. Weight itself can be related to mass like this:

$f_g = mg$

where g is a gravitational constant. For our purposes, it's defined by whatever planet you are on. Following this, we can demonstrate that mass is NOT the same thing as weight if we take two objects of the same mass and put them on different planets.

Let E refer to Earth and F refer to Mars

$g_E = 9.81 m/s^2\\g_F = 3.711 m/s^2$

Following this, we can see clearly that weight is not the same as mass:

$m*9.81 : m*3.711 \\\int\limits^a_b {x} \, dx 9.81 \neq 3.711\\f_g E \neq f_g F\\$

If weight was the same thing as mass, the two values would be the same, as the mass of the two objects is the same. But since weight is defined in the context of gravity, they are not.

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2 years ago