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kvasek [131]
3 years ago
9

Help please!

Biology
1 answer:
Lesechka [4]3 years ago
5 0

Answer with Explanation:

Hydrogen peroxide is considered<em> "unstable,"</em> thus, storing it in the refrigerator provides two advantages:

1. It slows down thermal decomposition.

  • The rate of decomposition slows down when the temperature is lowered. It increases when the temperature rises.

2. It prevents photolytic decomposition.

  • Photolytic decomposition happens when hydrogen peroxide is exposed to sunlight or bright light. It therefore increases the rate of reaction. Therefore, hydrogen peroxide should be stored in a <em>cool and dark place</em>, such as the refrigerator.
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The mass of a nucleus is less than the total mass of its nucleons. This difference in mass indicates that some of the mass has b
elena-14-01-66 [18.8K]

Answer:

Option B , Binding Energy

Explanation:

The energy in combining two nucleus is lost in binding them. This binding energy is too large that it causes significant loss of mass and is calculated using the Einstein’s theory of relativity.  

When two nucleons combine , mass defect is caused which leads to loss of mass associated with energy and therefore the mass of nucleus is less than the mass of nucleons.  

Hence, Option B is correct.

6 0
3 years ago
How do animals survive in air pollution?
bixtya [17]
There is no absolute reason as to how they survive besides organisms learning to adapt. In order to live in a polluted environment the animals have to survive and learn to adapt.
6 0
3 years ago
What is one way a plain can form?
ryzh [129]

Answer:

A. Erosion from wind, water, or ice removes crustal material.

Explanation:

Plain formation can occur in many different ways some plates some planes can form as wind, water and ice erode wear away or remove dirt and rocks on higher land.

Wind picks up and carries along small particles which can be abrasive against surfaces, slowly wearing them away to form more particles. The water and ice transport the fragments of rock and dirt as sediment down hillsides, where it is eventually deposited. This occurs until several layers of sediment are accumulated. Plains can also form at the bases of mountains where water carries a flow of sentiments downhill to flat areas where it further spreads out to deposit the sediment in a fan shape -this is called an alluvial plain.

7 0
3 years ago
You are dispatched to a​ 1-year-old child with respiratory distress. En​ route, you review how to assess and treat infants with
Anastasy [175]

Answer:

B. Mental status

Explanation:

Respiratory diseases are medical conditions that affect the lungs and breathing capacity, but do not alter the child's mental state, so in assessing the child's breathing, it will not be necessary to evaluate breathing work, chest expansion and sounds of the child's breath. It is not necessary to evaluate the mental states to know if the child has breathing problems.

Some breathing problems are genetic while others are caused by lifestyle or environmental factors. Common breathing problems include asthma, bronchitis, emphysema, tuberculosis and sinusitis.

8 0
3 years ago
Do animal cells have a large vacuoles?
Vladimir [108]

Answer:

no thwy dont have vacoules

Explanation:

8 0
3 years ago
Read 2 more answers
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