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zhannawk [14.2K]
3 years ago
12

Which of the following statements best describes the number of neutrons in an atom?

Chemistry
1 answer:
Alexeev081 [22]3 years ago
7 0

Answer:

its the last one

Explanation:

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Driving cars lowers the pH of the oceans by _______.
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A) releasing CO2 that dissolves and forms acid in the oceans (i think i'm sorry if its wrong)
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Which of the following is the best piece of laboratory glassware for preparing 500.0 mL of an aqueous solution of a solid?
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Answer:

The correct answer is option A.

Explanation:

Volumetric flask  : A glass ware with round lower body with flat bottom and with thin cylindrical neck along with mark which indicates the specific volume filled to that mark.It is used in preparation of standard solution of compound with desired concentration with fixed volume.

Erlenmeyer flask : is a flask with conical shape with flat bottom used in titration  experiments to carry out reaction with fixed volume of solution.

Test tube : Small cylindrical tube with rounded bottom used to observe reaction in between reactant taken in small amount.

Graduated beaker : Laboratory glassware used measure larger volumes of solution or to mix or stir solutions and liquids.

Graduated cylinder : Laboratory thin cylindrical glassware with accurate marking of volume used to measure an accurate volume of solutions or liquids required in an experiment.

<em><u>Volumetric flask</u></em> is the best piece of laboratory glassware for preparing 500.0 mL of an aqueous solution of a solid

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Why did Rutherford choose alpha particles in his experiment?
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Does the surface area of an object affect how fast it falls?
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You know that an unlabeled bottle contains an aqueous solution of one of the following: AgNO3, KCl, or (NH4)2SO4. A friend sugge
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Answer:

These tests determine the solubility of the compounds formed upon adding the test solution

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Addition of NaCl solution will cause a precipitate (AgCl) to form in the solution of AgNO₃. No precipitates will form in the other unknown solutions. Thus, whether or not the solution is silver nitrate can be determined.

If no precipitates form, then the unknown solution must be KCl.

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3 years ago
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