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4 years ago

Which is a chemical property of vinegar ?

1 answer:

4 0

A chemical property of vinegar is its acidity.

Vinegard is a diluted acid. It is acetic acid in water.

Acetic acid is CH3 COOH.

The group COOH is the carboxylic group and is what tells you that a compound is an organic acid.

COOH disociates in water into COO- and H3O+.

CH3COOH + H2O ----> CH3COO(-) + H3O(+)

All the substances that dissociate in water producing hydronium groups (H3O+) are acids.

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Under which conditions of temperature and pressure does a real gas behave most like an ideal gas

Veseljchak [2.6K]

At higher temperature, and lower pressure.

4 0

3 years ago

WILL MARK BRAINLIEST!!!!

Lyrx [107]

Answer:

5.702 mol K₂SO₄

General Formulas and Concepts:

Atomic Structure

Reading a Periodic Table
Compounds
Moles

Stoichiometry

Using Dimensional Analysis

Explanation:

Step 1: Define

[Given] 993.6 g K₂SO₄

[Solve] moles K₂SO₄

Step 2: Identify Conversions

[PT] Molar Mass of K: 39.10 g/mol

[PT] Molar Mass of S: 32.07 g/mol

[PT] Molar mass of O: 16.00 g/mol

Molar Mass of K₂SO₄: 2(39.10) + 32.07 + 4(16.00) = 174.27 g/mol

Step 3: Convert

[DA] Set up: $\displaystyle 993.6 \ g \ K_2SO_4(\frac{1 \ mol \ K_2SO_4}{174.27 \ g \ K_2SO_4})$
[DA] Divide [Cancel out units]: $\displaystyle 5.7015 \ mol \ K_2SO_4$

Step 4: Check

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

5.7015 mol K₂SO₄ ≈ 5.702 mol K₂SO₄

7 0

3 years ago

What coefficient for O2 demonstrates the law of conservation of mass?

olga2289 [7]

Answer:

Explanation:

The coefficient for O is 2 and this is an example of a combustion reaction. With the help of the coefficient 2 infront of oxygen, this equation now demonstrates law of conservation of mass.

6 0

3 years ago

Elements and compounds are more similar to each other than they are to mixtures because:

Dovator [93]

Answer:

elements and compounds can only be liquids or solids, but mixtures can be solids, liquids or gases

Explanation:

Element: A substance that is made up of only one type of atom. Compound: A substance that is made up of more than one type of atom bonded together. Mixture: A combination of two or more elements or compounds which have not reacted to bond together; each part in the mixture retains its own properties.

7 0

3 years ago

Name a physical property of gold (Au)

Lana71 [14]

Gold is a soft metal. Both malleable and ductile

7 0

3 years ago

Read 2 more answers