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3 years ago

Which statement is true of the particles that make up a substance?

Chemistry

1 answer:

antiseptic1488 [7]3 years ago

6 0

Answer:B

Explanation:

the particles in a gas are more far apart and have more kinetic energy than liquid because they are more close together and have less kinetic energy than gas.

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Entrance Question: What is a physical trait? Explain using complete sentences.

azamat

Answer: A physical trait is a defining aspect or feature of your body or other subject that you can see visually.

Explanation:

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3 years ago

The concentration of hydrogen in soil sample 13 * 10 ^ - 6 * M the soil is tested with a pH meter, what value should the meter r

vovikov84 [41]

Answer:

pH = 4.9

Explanation:

Given data

[H⁺] = 13 × 10⁻⁶ M

The pH is a scale used to determine <em>the acidity or basicity of a solution</em>. The pH is related to the concentration of hydrogen ions through the following expression.

pH = -log [H⁺]

pH = -log 13 × 10⁻⁶

pH = 4.9

Since the pH < 7, the soil is considered to be acid.

6 0

4 years ago

Blank are atoms that carry an electric charge

vampirchik [111]

Ions. Im 99.9% sure haha.

8 0

3 years ago

HURRY IT'S URGENT!!!

Nady [450]

Answer:

convection

Explanation:

as air is heated, it rises up and away from the heat source, cools then falls closer to the heat source over and over again.

6 0

3 years ago

you are given a solution of lead nitrate. use any of the solution used in this experiment to form a white precipitate of lead ch

Vesnalui [34]

We have as a reagent a salt, lead nitrate (Pb(NO3)2), and an unknown solution that gives us as a product lead chloride (PbCl2). That is, the solution must contain chlorine.

If a chlorine solution is used we will have the following reaction:

$Pb(NO_{3)2}+2Cl^-\rightarrow PbCl_2+2NO^-_3$

So, with a chlorine solution, we will have a white precipitate of lead chloride.

7 0

1 year ago