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iren2701 [21]
3 years ago
6

What are three characteristics of a chemical reaction

Chemistry
2 answers:
daser333 [38]3 years ago
8 0

Answer:

change in colour , change in temperature , form of bullbes

Explanation:

Alex73 [517]3 years ago
4 0

Answer:

Evolution of gas.

Formation of a precipitate.

Change in color.

Explanation:

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Balance the following skeleton ionic reaction, and calculate E°cell to decide whether the reaction is spontaneous: Ag(s) + Cu2+
tia_tia [17]

Answer:

2Ag(s) + Cu^2+(aq) ----------> 2Ag^+(aq) + Cu(s)

Explanation:

Ag(s)/Ag^+ (aq) is the anode as shown while Cu^2+(aq)/Cu^2(s) is the cathode.

E°cell= E°cathode -E°anode= 0.34 -0.80= -0.5V

The cell is not spontaneous as written because E°cell is negative. This implies that the electrodes of the cell must be interchanged to make the cell spontaneous.

5 0
4 years ago
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Put the levels of organization in order from smallest to largest
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organism
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3 years ago
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A compound that conducts electricity when dissolved in water would most likely be classified as
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Answer:

Electrolyte

Explanation:

A compound that conducts electricity when dissolved in water would most likely be classified as electrolyte.

The ionic compound in solid form do not conduct the electricity but when dissolve in water they separated into ions and have ability to conduct the electricity because of mobile ions that move freely and allow the charge to flow.

The ionic compounds are called electrolyte and electrolyte solution is formed when they dissolve in water.

For example when sodium chloride is placed into water it split into ions and conduct electricity because of mobile ions.

Chemical equation:

NaCl → Na⁺ + Cl⁻

6 0
3 years ago
In a lunar month do the same pattern moon phases repeat monthly
vitfil [10]

Answer:   The Gregorian calendar month, which is ​1⁄12 of a tropical year, is about 30.44 days, while the cycle of lunar phases (the Moon's synodic period) repeats every 29.53 days on average. Therefore, the timing of the lunar phases shifts by an average of almost one day for each successive month.

Explanation: This is what GOOGLE says

hope it helps a little!!

8 0
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O que são processos físicos de separação das misturas? Dê 3 exemplos
chubhunter [2.5K]

Answer:

Explanation:

The physical methods of separating mixtures are used in sorting a mixture of substances.

It requires no chemical changes occurring between their components and parts in any significant way.

Examples are:

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The methods simply relies on the physical properties of matter.

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3 years ago
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