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dimulka [17.4K]
3 years ago
11

Help mee pleasee its urgent .. thank uuuu<3

Chemistry
2 answers:
Papessa [141]3 years ago
8 0

1. Melting

2. Condensation

3. Freezing

4. Sublimation

Eddi Din [679]3 years ago
8 0
Melting
condinstation
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Δs is positive for the reaction ________.
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C. The reaction goes from one of less moles to more causing it to be more disordered and therefore have a positive change in s
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Mandelic Acid is an organic acid composed of carbon (63.15%), hydrogen (5.30%), and oxygen (31.55%). Its molar mass is 152.14 g/
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Answer:

Empirical formula is C3H3O

Molecular formula C9H9O3

Explanation:

From the question given, we obtained the following data:

Carbon = 63.15%

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Oxygen = 31.55%

We can obtain the empirical and molecular formula by doing the following as illustrated in the attached file. Please see attachment for explanation.

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I need help filling out nitrogen
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Protons - 7
Neutrons - 8
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Write the formula and calculate the molecular mass of
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The molecular formula is the sum of the atomic masses of all atoms in the molecule.

The formula of Soda Ash:

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The formula of Baking Soda:

NaHCO₃ is also known as Sodium bicarbonate.

The molecular mass of Baking Soda is

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The formula of Lime Stone:

CaCO₃ is also known as Calcium carbonate.

The molecular mass of Lime Stone:

(1×Ca)+(1×H)+(1×C)+(3×O)=100g/mol

The formula of Ethanol:

C₂H₅OH is the formula of ethanol.

The molecular mass of Ethanol:

(2×C)+(6×H)+(1×O)=46g/mol

The formula of Common Salt:

NaCl is also known as Sodium chloride.

The molecular mass of Common Salt:

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Learn more about chemical formulas here:

brainly.com/question/26694427

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