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Fudgin [204]
3 years ago
9

Who is known as the “father of modern chemistry” because he first organized all known elements into four different groups?

Biology
2 answers:
Gemiola [76]3 years ago
6 0
<span>The answer to the following question would be, Antoine Lavoisier. </span>
TiliK225 [7]3 years ago
4 0

Answer:

Antoine Lavoisier.  

Explanation:

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The heating curve of an ice-water mixture that is slowly heated to 125°C contains three sloped and two level portions. What do t
scZoUnD [109]
The 2 level portion in the graph represents the changing of state.

Every substance has internal energy, which includes kinetic energy and potential energy. Kinetic energy means the temperature, and the potential energy means the bondings or attractions.

When a substance is heated up, they first increase their temperature as the same state. For example, the ice starts at - 5 °C, they won't start melting immediately as they're not at their melting point yet. Instead, they first absorb heat and increase their temperature to 0°C. This is same for when water increase their temperature until their boiling point. Their kinetic energy is increasing, but potential energy is unchanged as they stay at the same state. That's why the slope is increasing.

However, but once the ice or water has reached their melting or boiling point, they have to go through a state change. During that time, they do not increase their temperature (K.E. unchanged) . Instead, the heat they absorbed is used to increase the potential energy to break the bonds and turn into another state. The heat absorbed is called latent heat.

This explains why in the graph, there's 2 level portions, as the substance is going through a state change and increasing their potential energy instead of their kinetic energy (temperature)
4 0
3 years ago
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The lock-and-key mechanism refers to
Zinaida [17]
The Lock-and-key mechanism was first proposed by Emil Fischer which described as the enzymatic reactions whereby an enzyme with a single substrate binds temporarily to form a substrate complex. 
The lock-and-key mechanism is usually associated with the complementary shapes of an enzyme with a single substrate, wherein the lock  that is being referred to is the enzyme and the substrate is the key. One right sized substrate (key) fits into the active site (key hole) of the enzyme (lock).
The active site which is mentioned above is structurally complementary to the substrate. This is the temporary binding site on the enzymes. Just like a lock and key, the enzyme as the lock and the substrate as the key is said to fit together.

5 0
3 years ago
How can you interpret and analyze data for patterns in fossil record?
Crank

Answer:

Patterns can occur within one species of organism or across many species. Students who understand the concepts can: Use graphs, charts, and images to identify patterns within the fossil record. Analyze and interpret data within the fossil record to determine similarities and differences in findings.

Explanation:

3 0
3 years ago
Plz help will give 10pts.!!1
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The answer is B. They are both made up of subatomic particles.
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How many individuals in the F1 generation do not have the widow's peak<br> trait? <br> and why ?
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I can’t read it i need my glasses but i lost them do you know where they are?
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2 years ago
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