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hodyreva [135]
3 years ago
15

Please help!

Chemistry
1 answer:
Grace [21]3 years ago
3 0
The most common reaction that causes spoilage isn't a reaction at all. Molds and Bacteria are attracted to the easily found presence of water in the fruit. They find a natural place to reproduce and what they do causes spoilage.

Very few sources talk about the chemical changes that take place. If you put fruit in a refrigerator it slows the spoiling process down. That means that the chemical reaction has to be endothermic (it requires heat to occur)

The process of spoilage is speeded up by bananas for example, giving up Ethylene gas. You do not want to put a banana with tomatoes, because tomatoes are very sensitive to Ethylene. (It's OK to eat them together. They make a terrific salad. Yum).

I cannot find a definitive source that connects all this together, but the conduct of the fruit in refrigerators confirms what I am saying.

Spoilage is a very complex reaction and interaction with the environment. I have given you a hint of what happens but you should search it out to convince yourself of the outcome.
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Answer each of the following questions with increases, decreases, or does not change.
Kaylis [27]

Answer:

1) Increases

2) decreases

3) increases

4) decreases

Explanation:

When the intermolecular forces in a liquid increases, the greater vapour pressure of the liquid decreases accordingly.

Since the vapour pressure is proportional to temperature, as temperature increases, the vapour pressure increases alongside.

As intermolecular forces increases, the boiling point increases accordingly since more energy is required to break intermolecular bonds.

Lastly, the greater the surface area, tell greater the vapour pressure since more liquid surface area is now available.

7 0
4 years ago
List two ways that the first ionization and second ionization of an atom are similar
Maru [420]
The first ionization and second ionization of an atom are similar in following ways:
1. Both ionizations involve atom and energy
2. Both lose an electron.

The difference between first and second ionization of an atom is that both started and ended with different ions/atom.
6 0
4 years ago
A gas sample occupies 8.77 L at 20 degrees Celsius and 3.98 atm. What is
Softa [21]

Answer:

1.45 mol

Explanation:

Given data

  • Volume of the gas (V): 8.77 L
  • Temperature of the gas (T): 20 °C
  • Pressure of the gas (P): 3.98 atm

Step 1: Calculate the absolute temperature (Kelvin)

We will use the following expression.

K = \°C + 273.15\\K = 20\°C + 273.15 = 293K

Step 2: Calculate the number of moles (n) of the gaseous sample

We will use the ideal gas equation.

P \times V = n \times R \times T\\n = \frac{P \times V}{R \times T} = \frac{3.98atm \times 8.77L}{\frac{0.0821atm.L}{mol.K}  \times 293K} = 1.45 mol

3 0
3 years ago
In water, HNO3 produces H+ ions. Which is the name for HNO3 in an aqueous solution?
ozzi
Nitric acid<span> is the chemical name for HNO3(</span>aq<span>). The </span>compound<span> is composed of </span>hydrogen<span>, </span>nitrogen<span> and </span>oxygen<span>. </span>
7 0
4 years ago
Read 2 more answers
1. A depression in the ground due to a cave collapse or acidic water dissolution of limestone is called a
Alexxx [7]
It is called a sinkhole.
This is used to describe a depression in the ground due to a cave collapse. It can also happen because of acidic water dissolving limestone.
6 0
4 years ago
Read 2 more answers
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