Question

изучите физические свойства: а) сахара и соли; б) лимонной кислоты и соды. для определения температуры плавления и кипения веществ используйте интернет. результаты проведенного анализа оформите в виде таблицы​

Answer 1

Ответ:Всё на картинке

Объяснение:

Answer 2

Physical Properties of Sugar and Salt

To determine the physical properties of sugar and salt, we can look at their melting and boiling points. Let's explore these properties using information from the internet.

# Sugar:

- Melting Point: The melting point of sugar, also known as sucrose, is approximately 186-186.5 degrees Celsius. - Boiling Point: Sugar does not have a specific boiling point since it decomposes before reaching its boiling point. However, it starts to decompose around 160 degrees Celsius.

# Salt:

- Melting Point: The melting point of salt, also known as sodium chloride, is approximately 801 degrees Celsius. - Boiling Point: The boiling point of salt is approximately 1465 degrees Celsius.

Physical Properties of Lemon Acid and Baking Soda

Now let's explore the physical properties of lemon acid (citric acid) and baking soda (sodium bicarbonate).

# Lemon Acid (Citric Acid):

- Melting Point: The melting point of citric acid is approximately 153 degrees Celsius. - Boiling Point: Citric acid decomposes before reaching its boiling point, so it does not have a specific boiling point.

# Baking Soda (Sodium Bicarbonate):

- Melting Point: The melting point of sodium bicarbonate is approximately 50-70 degrees Celsius. - Boiling Point: Baking soda decomposes before reaching its boiling point, so it does not have a specific boiling point.

Summary of Physical Properties:

Here is a summary of the physical properties of the substances mentioned:

| Substance | Melting Point (°C) | Boiling Point (°C) | |------------------|-------------------|--------------------| | Sugar (Sucrose) | 186-186.5 | Decomposes | | Salt (NaCl) | 801 | 1465 | | Lemon Acid | 153 | Decomposes | | Baking Soda | 50-70 | Decomposes |

Please note that these values are approximate and can vary depending on the purity of the substances.

I hope this information helps! Let me know if you have any further questions.