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geniusboy [140]
3 years ago
14

A change where compounds are formed or decomposed is a(n) physical change phase change nuclear change chemical change

Chemistry
2 answers:
dimaraw [331]3 years ago
4 0
It's a chemical change because a new compound is formed
lianna [129]3 years ago
3 0
       Physical change is a change in the shape, velocity, etc.
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If the H3O is 4.950 x 10-12 what is the ph?
romanna [79]

Answer:

pH = 11.3

Explanation:

From the question given above, the following data were obtained:

Concentration of hydronium ion [H₃O⁺] = 4.950×10¯¹² M

pH =.?

The pH of a solution is defined by the following equation:

pH = –Log [H₃O⁺]

Thus, with the above formula, we can obtain the pH of the solution as follow:

Concentration of hydronium ion [H₃O⁺] = 4.950×10¯¹² M

pH =.?

pH = –Log [H₃O⁺]

pH = –Log 4.950×10¯¹²

pH = 11.3

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3 years ago
A cell contains the same DNA as its parent cell. This is a result of which process? mitosis meiosis gamete formation fertilizati
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Answer:

Mitosis

Explanation:

A cell that contains the same DNA as its parent cell is a product of mitosis.

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2 years ago
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Give example of 1 solid, 1 liquid and 1 gas solution. <br> Captionless Image
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A word equation is a written description of a chemical reaction.
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Which statement best describes the properties of sucrose?
crimeas [40]

Answer:

D. They are different from the properties of carbon, oxygen, and hydrogen.  

Step-by-step explanation:

Carbon, oxygen, and hydrogen are all <em>elements. </em>

Sucrose is a <em>compound</em> containing carbon, oxygen, and hydrogen. Its properties are different from those of its elements.

For example, carbon is a <em>black solid,</em> while oxygen and hydrogen are <em>colourless gases</em>. Sucrose is a <em>white solid</em>.

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3 years ago
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