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balu736 [363]
3 years ago
14

5. All of the following involve chemical changes, except

Chemistry
1 answer:
sweet-ann [11.9K]3 years ago
8 0
The answer is B.) The dissolving of a sugar cube in a cup of coffee.
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What is the relationship between Celsius and kelvin
Inga [223]

The relationship between Celsius and kelvin is that degrees Kelvin is equal to degrees Celsius + 273.15. That means that the freezing point of water (0°C) is 273.15° kelvin. This makes an additive relationship between the two quantities, so quantities such as the boiling point and freezing point of water are the same distance apart on the Kelvin scale (100 degrees). This means that kelvin has the same magnitude as Celsius.

4 0
3 years ago
Which missing item would complete this beta decay reaction?
madam [21]

Answer:

<h3>The answer is option A.</h3>

Hope this helps you

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4 years ago
What is the cause of acid precipitation?
VLD [36.1K]

Answer:

nitrogenous oxides

Explanation:

5 0
3 years ago
Read 2 more answers
g, Assuming the precipitate is totally insoluble in water, which aqueous ions will be present in the solution (collected in the
Allushta [10]

Answer:

Cl⁻, Na⁺, OH⁻

Explanation:

The titration is:

CuCl₂(aq) + 2 NaOH(aq) → Cu(OH)₂(s) + 2 NaCl(aq)

In solution, before the reaction, the ions are Cu²⁺ and Cl⁻. The addition of NaOH (Na⁺ + OH⁻) produce the precipitation of Cu²⁺ forming Cu(OH)₂(s). When you reach the equivalence point, there is no Cu²⁺ because precipitates completely. All OH⁻ ions reacts when are added but when Cu²⁺ is finished, excess OH⁻ ions still in solution helping to detect the equivalence point.

Thus, ions present after the equivalence point are:<em> Cl⁻, Na⁺</em> (Don't react, spectator ions), and <em>OH⁻</em>.

3 0
3 years ago
The type of nuclear division that produces gametes is called
schepotkina [342]
This process is called meiosis! good luck!
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