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kvasek [131]
2 years ago
10

Which of the following is the best example of a physical system?

Chemistry
1 answer:
Natasha2012 [34]2 years ago
4 0
A) a city would be bet
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Saline solutions (nacl in water) used to deliver intravenous drugs are 0.89%(w/v). what mass of nacl is found in 200 ml of such
Gnom [1K]

A ratio of 0.89% w / v or 0.0089 in fraction means that there is 0.89 weight of NaCl pero volume of solution. Therefore the mass of NaCl is:

mass NaCl = 0.0089 * 200

<span>mass NaCl = 1.78 grams</span>

6 0
3 years ago
1. Define fission and fusion. Give an example of fission and fusion reflecting in real life application.
Alja [10]

Answer :

  • Nuclear fission : In nuclear reaction, the nucleus of a larger atom breaks into two or more smaller nuclei. In fission process, protons and neutrons are produced and larger amount of energy is released.

Example : In nuclear power plant, the energy released from the process of nuclear fission which is converted into electrical energy that is used in our homes and factories.

  • Nuclear fusion : In nuclear reaction, the nuclei of two or more smaller atoms combine together to form single larger molecule. In fusion process, the mass of the resulting nuclei is more as compared to the starting nuclei and large amount of energy is also released.

Example : This process occurs in the sun and stars. In this, the isotopes of Hydrogen, Tritium and Deuterium combine together to form a neutron and a helium atom under high pressure and temperature.


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2 years ago
To help pay for her college education, lisa recently began working part-time at a local vitamin shop. she has noticed there is a
Olenka [21]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

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Research suggests that the health benefits of phytochemicals are most prevalent when phytochemicals are consumed in dietary <span>supplement form.</span>
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3 years ago
Complete the following calculation. Round off the answers to the correct
timofeeve [1]

Answer:

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Explanation:

6 0
2 years ago
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Water exhibits a type of magnetism called ___________________ whereby in the presence of a strong magnetic field, the normally n
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The answer is diamagnetism.  It is a significant mechanical effect that happens in all materials; when it is the only influence to the magnetism, the material is named diamagnetic. Quartz and water are samples of diamagnetic materials. The diamagnetic influence is usually unimportant in materials holding strong lasting magnetic moments.

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3 years ago
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