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Evgen [1.6K]
3 years ago
7

What evidence is there that all state of matter have mass

Chemistry
1 answer:
katovenus [111]3 years ago
8 0

Answer:

Matter is the "stuff" that makes up the universe everything that takes up space and has mass is matter.

All matter is made up of atoms, which are in turn made up of protons, neutrons and electrons

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Calculate the atomic mass of oxygen if the three common isotopes of oxygen have masses of 15.995 amu (99.759% abundance), 16.995
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Answer:

16 amu

Explanation:

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3 years ago
Which element would be expected to have chemical and physical properties closest to those of rubidium?
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Rubidium is an element that belongs to Group 1.  As such it will have physical properties similar to the other Group 1 elements.  Rubidium is below Potassium in the periodic table but above Cesium.  As such it would be most like one of those two elements.

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Solid substance A has a melting point of 100°C. Liquid substance B has a freezing point of 110°C. For each substance, identify i
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Answer:

both will be at liquid state. the particles will move rapidly in all directions and will collide with other particles in random motion

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3 years ago
Laney left a nail in water for two weeks, and the nail became rusted from sitting in the water.
Simora [160]
B) A chemical change because the nail reacts with water/oxygen to create rust (a type of oxide)
5 0
3 years ago
Consider the insoluble compound nickel(II) hydroxide , Ni(OH)2 . The nickel ion also forms a complex with cyanide ions . Write a
natali 33 [55]

Answer: Equilibrium constant for this reaction is 2.8 \times 10^{15}.

Explanation:

Chemical reaction equation for the formation of nickel cyanide complex is as follows.

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We know that,

      K = K_{f} \times K_{sp}

We are given that, K_{f} = 1.0 \times 10^{31}

and,    K_{sp} = 2.8 \times 10^{-16}

Hence, we will calculate the value of K as follows.

     K = K_{f} \times K_{sp}

     K = (1.0 \times 10^{31}) \times (2.8 \times 10^{-16})

        = 2.8 \times 10^{15}

Thus, we can conclude that equilibrium constant for this reaction is 2.8 \times 10^{15}.

4 0
2 years ago
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