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Naddik [55]
3 years ago
14

What is an indicator?

Chemistry
1 answer:
Anna [14]3 years ago
7 0

a thing, especially a trend or fact, that indicates the state or level of something.

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NaCl is ___ formula of common salt
MrMuchimi

Answer:

None of them, D

Explanation:

The actual answer is chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions.

5 0
3 years ago
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When Magnesium loses electrons to Oxygen and they form an Ionic bond.
Andreyy89

Answer:

Redox

Explanation:

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3 years ago
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Which of the following statements best compares the pH value of H3PO4 and HCl?
wel

Answer:

Option B. Both have a pH less than 7, but H3PO4 has a lower pH than HCl

Explanation:

Those are acid, so the pH would be < 7.

H₃PO₄ is a weak acid with 3 dissociations

HCl is a strong acid.

pH depends on [H]⁺

H₃PO₄  →  3H⁺  +  PO₄⁻³

HCl →  H⁺  +  Cl⁻

If both acid, have the same concentration, [H⁺]H₃PO₄ > [H⁺]HCl, that's why the pH from the phosphoric will be lower.

5 0
3 years ago
Organic molecules are defined as chemical compounds that contain ______ in distinct ratios and structures.
OLga [1]

Answer:

The answer is: <em>carbon</em>

Explanation:

Organic molecules contain the chemical element carbon (C) in its structure. In this type of molecules, carbon is usually bonded to hydrogen (H), oxygen (O) and, with less frecuency, nitrogen (N). Therefore, in these molecules, carbon forms simple, double and triple bonds with itself. Examples of organic molecules that are very important in biology are carbohydrates, lipids, proteins and nucleic acids.

8 0
3 years ago
In the simulation, open the Custom mode. The beaker will be filled to the 0.50 L mark with a neutral solution. Set the pH to 2.8
REY [17]

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3 0
3 years ago
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