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Vadim26 [7]
3 years ago
13

Sodium ethanoate ? --> solid sodium ethanoate

Chemistry
1 answer:
timurjin [86]3 years ago
7 0
I’m pretty sure it craters sodium acetate
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Chemical reactions can be detected by precipitation of a _____ from a solution.
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Answer: solid

Explanation: Chemical reactions are those which involve rearrangement of atoms.

Chemical changes are accompanied by following changes:

1) Absorption or release of heat

2) Change in color

3) Formation of gas bubbles

4) Formation of a solid product called as precipitate

Example of formation of precipitate or solid in chemical reaction:2AgNO_3(aq)+BaCl_2(aq)\rightarrow 2AgCl(s)+Ba(NO_3)_2(aq)


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Which two options are examples of waves refecting
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Answer:

A voice echo

Your image in a mirror

Explanation:

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Refer to the map of "The Major North American Land Biomes" to answer the question.
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18.A 2.50 L sample of dry air in a cylinder exerts a pressure of
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Answer:

\boxed{\text{7.50 L}}

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p_{1}V_{1} = p_{2}V_{2}

Data:

\begin{array}{rclrcl}p_{1}& =& \text{3.00 atm}\qquad & V_{1} &= & \text{2.50 L} \\p_{2}& =& \text{1.00 atm}\qquad & V_{2} &= & ?\\\end{array}

Calculations:

\begin{array}{rcl}3.00 \times 2.50 & =& 1.00V_{2}\\7.500 & = & 1.00V_{2}\\V_{2} & = &\textbf{7.50 L}\\\end{array}\\\text{The volume of the gas is } \boxed{\textbf{7.50 L}}

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How can the chemical properties of an element help determine the types of materials it can form?
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The quantity of protons likewise decides the character of the component. Electrons have a negative charge. The furthest or valence electrons of a particle are the ones that partake in synthetic responses. A component's substance properties rely upon its valence electrons.  

The general properties of issue, for example, shading, thickness, hardness, are instances of physical properties. Properties that portray how a substance changes into a totally extraordinary substance are called synthetic properties. Combustibility and consumption/oxidation obstruction are instances of compound properties.  

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Toxicity.

Coordination number.

Flammability.

Enthalpy of formation.

Heat of combustion.

Oxidation states.

Chemical stability

5 0
3 years ago
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