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3 years ago

The physical state in which a substance has a no definite volume is:

Chemistry

1 answer:

AlekseyPX3 years ago

7 0

The physical state in which a substance has no definite volume is gas.

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The momentum of an object depends on which two quantities?

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The answer is D; Mass and Velocity

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3 years ago

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What is potential or potenz hydrogen?

Mrrafil [7]

Answer:

potential or pontenz Hydrogen is the negative logarithm of molar hydrogen ion concentration.

Explanation:

potential Hydrogen or potenz Hydrogen stands for pH

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${ \tt{pH = - log [H {}^{ + } ]}}$

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2 years ago

In general the state of matter with the most energy is ?

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Gas

Gas particles got the most energy because of how freely the molecules move

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Fe3+(aq) (yellow) + SCN-(aq) (colorless) FeSCN2+(aq) (blood-red) Chloride ions are colorless. Potassium ions are also colorless.

harina [27]

Explanation:

$Fe^{3+}\text{(aq)(yellow)}+SCN^-\text{(aq)(colorless)}\rightleftharpoons FeSCN^{2+}\text{(aq)(blood-red)}$

$K^+\text{(aq)(colorless)}+Cl^-\text{(aq)(colorless)}\rightarrow KCl$

The above two reactions xcan also be written in form of single chemcial equation:

$FeCl_3+K(SCN)\rightleftharpoons KCl+[Fe(SCN)]Cl_2(blood-red)$

1. Color of ferric chloride solution is yellow. This is due to presence of ferric ions which have yellow color in their aqueous solutions.

2. KSCN has the colorless solution. This due to potassium ion forms colorless aqueous solution.

3. On mixing, KSCN with $FeCl_3$ we will get blood red color solution of $[FeSCN]Cl_2$ .

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3 years ago

If 5.0 moles of water are decomposed how many moles of oxgyen are formed

JulijaS [17]

Answer:

5 moles of H2

Explanation:

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3 years ago