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2 years ago

2) Why does the bottle collapse when sitting on the counter?

Chemistry

1 answer:

icang [17]2 years ago

5 0

Answer:

vapour pressure I's crushing the bottle

mark brainliest

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How many atoms are present in a sample of Potassium (K) weighing 33.49g?

madam [21]

Answer:

5.158 × 10²³ atoms K

General Formulas and Concepts:

Chemistry - Atomic Structure

Reading a Periodic Table
Using Dimensional Analysis
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Explanation:

Step 1: Define

33.49 g K

Step 2: Identify Conversions

Avogadro's Number

Molar Mass of K - 39.10 g/mol

Step 3: Convert

$33.49 \ g \ K(\frac{1 \ mol \ K}{39.10 \ g \ K} )(\frac{6.022 \cdot 10^{23} \ atoms \ K}{1 \ mol \ K} )$ = 5.15797 × 10²³ atoms K

Step 4: Check

We are given 4 sig figs. Follow sig figs and round.

5.15797 × 10²³ atoms K ≈ 5.158 × 10²³ atoms K

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3 years ago

The charge of single electron

irga5000 [103]

The answer is B.

plz mark me as brainliest. i really need it.

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3 years ago

What is the name of an atom with 3 protons and 4 neutrons?

asambeis [7]

Answer:

Those with 3 protons and 3 neutrons are known as the isotope lithium-6. Those with 3 protons and 4 neutrons are known as the isotope lithium-7.

Explanation:

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3 years ago

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How many carbon atoms does the common group of amino acids have? a. 0 c. 2 b. 1 d. 3

zzz [600]

I definitly believe the answer is c. 2

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4 years ago

What is the main idea of the kinetic theory of heat?

Goshia [24]

– liquids, solids or gases – are made up of atoms and molecules that are in constant motion. The theory also states that collisions between atoms and molecules are elastic

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3 years ago