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Rashid [163]
3 years ago
15

Tell me WHAT you hope to learn in this class / HALF page Chemistry

Chemistry
1 answer:
Mrac [35]3 years ago
6 0

Answer:

My experience in/with scienceI begin with what I believe science means to me. Science is the natural world around me&emdash;trees, animals, earth, air, people, flowers, birds, machinery, working tools. As a nurse science also means the body and how it is made and functions. How illness occurs and how we heal, how the mind thinks.

My experience with science began as a child. My father and mother both had scientific interests&emdash;gardening, astronomy, archery, fishing, outdoors, farming. I was a girl guide so camping, fires etc. were interesting to me.

Nursing started out as science&emdash;physiology and medications, surgery and healing. I grew older and began to realize that all these things I saw as science were actually connected to people and people were all unique and wonderful. The rules of science don't fit with people&emdash;because each person has a different relationship with the rules of science and often-mysterious things happen.

Health that started out as an experimental hard scientific definition has now become a word with meaning&emdash;different for each person. In my practice health is a central focus and I am wanting to learn how to facilitate health for the people that I come into contact with. I have learned that what I do to people to facilitate their health and wellness contributes minimally towards their capacity of health&emdash;but what I do with people has more potential to support their being healthy or their perceiving health.

I see science now from this broader perspective and look forward to working and learning in my personal and professional life in this manner. Science defined in this way opens many more doors to understanding people and the world that we live in. I think that this meaning of science also assists me to grow as a person in my view of the world I live in.

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Sati [7]
Hypothesis is a smart guess that you make on the result of your experiment. You make this even before doing the experiment through inferential analysis. If the hypothesis you made was that, cotton will grow larger balls, then in the experiment, you should measure the cotton boll's size. The size should be in terms of diameter. So, the answer is b.
4 0
4 years ago
A chemical engineer must calculate the maximum safe operating temperature of a high-pressure gas reaction vessel. The vessel is
Anuta_ua [19.1K]

The maximum safe operating temperature for this reaction is equal to 895°C.

<u>Given the following data:</u>

  • Width of cylinder = 22 cm.
  • Height, h = 26.4 cm.
  • Maximum safe pressure = 6.30mpa.
  • Mass = 0.537 kg.

<u>Scientific data:</u>

  • Ideal gas constant, R = 8.314 L-kPa/Kmol.
  • Molar mass of of dinitrogen monoxide (N_2F_2) gas = 66 g/mol.

Radius, r = \frac{width}{2} =\frac{22}{2} =11\;cm

<h3>How to calculate the maximum safe operating temperature.</h3>

First of all, we would determine the volume of the stainless-steel cylinder by using this formula:

V=\pi r^2 h\\\\V = 3.142 \times 11^2 \times 26.4\\\\

Volume, V = 10,036.81 cm^3.

In liters, we have:

Volume, V = 10.04 Liters.

Next, we would determine the number of moles of dinitrogen monoxide (N_2F_2) gas:

Number \;of \;moles = \frac {mass}{molar\;mass}\\\\Number \;of \;moles = \frac {537}{66}

Number of moles = 8.136 moles.

Now, we can solve for the maximum safe operating temperature by applying the ideal gas equation:

PV=nRT\\\\T=\frac{PV}{nR} \\\\T=\frac{6.30 \times 10^3 \times 10.04}{8.136 \times 8.314}\\\\T=\frac{60541.2}{67.6427}

T = 895.02 ≈ 895°C.

Read more on temperature here: brainly.com/question/24769208

5 0
3 years ago
When an aluminum cube of edge 0.100 m and temperature T0= 5.00°C is submerged in a bucket of water, the level of the water rises
vodka [1.7K]

Answer:

5.52cm³ of water will rise and might spill over the edge

Explanation:

Use the change in volume of a liquid with changing temperature equation which is written as

ΔV = β x V₀ x ΔT, where β is the coefficient of expansion, V₀ is the volume being submerged and ΔT is the difference in temperature

ΔV = (69 x 10⁻⁶) x (0.1 x 0.1 x 0.1) x (85 - 5)

ΔV = 5.52 x 10⁻⁶ m³

ΔV = 5.52cm³

7 0
3 years ago
What type of reaction is shown below?
natima [27]
An exothermic reaction is a type of chemical reaction in which energy is released to the environment in form of heat or light. Endothermic reaction in the other hand is a chemical reaction where energy is taken from the surroundings and thus the surroundings end up with less energy than they started with. In this case; the above reaction is an Exothermic reaction (heat is being released to the surroundings).
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How many moles of HCI would be required to produce a total of 2 moles of H2
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Answer:

Should be 4 moles.

4 0
3 years ago
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