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Helen [10]
3 years ago
12

Shiloh wanted to observe the changes that occurred during an exothermic reaction. He monitored the changes and placed them in a

chart.
Chemistry
1 answer:
Nostrana [21]3 years ago
7 0
<span>The activation energy was reached was 10:45 a.m. The additional energy did not affect the reaction.</span>
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Which of the following best describes physical science?
Alex17521 [72]

The study of matter and energy best describes physical science. Hence, option B is correct.

<h3>What is physical science?</h3>

Physical science is the study of the inorganic world.

Physics is a branch of science that studies matter and its motion through space and time, along with related concepts such as energy and force. Physics is one of the "fundamental sciences" because of the other natural sciences (like biology, geology etc.)

Thus the study of matter and energy best describes physical science. Hence, option B is correct.

Learn more about the physical science here:

brainly.com/question/12842883

#SPJ1

3 0
2 years ago
Which particle in an atom is lost or gained to make an ion
denpristay [2]

An electron because that is the only part able to be lost or gained without nuclear action needed

7 0
3 years ago
How are antibodies and receptor molecules function similarly
Montano1993 [528]

Answer:

Antigens are molecules capable of stimulating an immune response. Each antigen has distinct surface features, or epitopes, resulting in specific responses. Antibodies (immunoglobins) are Y-shaped proteins produced by B cells of the immune system in response to exposure to antigens.

7 0
3 years ago
Question 1 (2 points)
bogdanovich [222]

Answer:

3.75 L

Explanation:

We can solve this problem by using <em>Charles' law</em>, which states:

  • V₁T₂=V₂T₁

Where subscript 1 stands for initial volume and temperature and subscript 2 for final volume and temperature, meaning that in this case:

  • V₁ = 2.5 L
  • T₂ = 300 K
  • V₂ = ?
  • T₁ = 200 K

We <u>input the data</u>:

  • 2.5 L * 300 K = V₂ * 200 K

And <u>solve for V₂</u>:

  • V₂ =  3.75 L
5 0
3 years ago
A chemical reaction is occurring inside a beaker and the temperature of the beaker is monitored. What would the contents of the
Archy [21]

<u>Answer:</u>

<em>The system is the Answer </em>

<em></em>

<u>Explanation:</u>

System is the region which is taken into consideration.

While we perform a chemical reaction the system is the substance taken in the container.

So, A thermodynamic system is the amount of matter or the region in universe which is under the study.

The region outside the beaker are called as surroundings.

The beaker (the surface which separates the system from its surroundings) is said to be the boundary

System + surroundings = universe

3 0
3 years ago
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