Why does the pressure infiltration hydroelectric analogy method experiment report require the model

In order to reduce horizontal non-uniformity errors.

The experimental report of the pressure infiltration hydroelectric analogy method is a commonly used exploration method to identify underground fluids such as oil, gas and water in calculating the hydroelectric performance ratio of rocks in different layers. The experiments involved injecting solutions into model swimming pools and measuring parameters such as resistivity, pressure and permeability. If the model basin is not level, it will affect the accuracy of the experimental results, because the imbalance will cause horizontal non-uniformity errors, which will affect the comparison and analysis of experimental data.

In addition, the level of the model basin can also ensure the uniform distribution of fluid in the experiment, thus making the experimental results more reliable.

In chemistry class, use the apparatus shown in Figure 1 to study the composition of water. (l) Complete the following experimental report exploring the composition of water. Experimental steps Experimental phenomena

Water analysis report

First of all, the source of the water must be clarified

Again , briefly describe the physical characteristics of water. water, such as color, odor, turbidity After the degree

explain the name of the water testing method and the specific process of the test

Explain the test results and briefly analyze the reasons for the results

Finally, if the water is contaminated, you can briefly discuss the improvement methods and suggestions

You can write your experience and your experience in water analysis

(This should be enough, all experimental reports have this pattern, haha)

Experimental report on making a batterye of fruits

(1) Fill the electrolyzer test tube with water and apply direct current. Bubbles will appear on the electrode. After a while, the gas on the negative electrode will be twice that of the positive electrode. Turn off the power and insert a wooden stick with sparks into the positive electrode test tube. burn a wooden stick in the negative electrode test tube; there will be sparks on the positive electrode. The wooden sticks can re-ignite, causing the gas in the negative electrode to burn, producing a light blue flame. the gas is hydrogen. From here we can see who produced the hydrogen and oxygen;

On the conservation of mass We can see from the law that water is composed of the elements hydrogen and oxygen. Therefore, the completed experimental report is as follows. ．

Experimental stages	Phenomenonexperimental	Experimental conclusions and explanations
Fill the electrolyzer test tube with water and apply direct current.	Bubbles are generated on the electrode. After a while, the negative electrode contains twice as much gas as the positive electrode.	The electrolysis of water generates hydrogen and oxygen, indicating that water is composed of hydrogen. It is made up of elements and oxygen.
To cut off the power supply, insert the wooden stick with sparks into the positive electrode test tube and insert the burning wooden stick into the test tube negative electrode.	With Mars at the positive pole, the strips of wood can reignite; gas in the negative electrode can burn, producing a light blue flame.

(2) During the electrolysis of water, under current conditions, the water molecules se decompose into hydrogen atoms and oxygen atoms, and the hydrogen atoms and oxygen atoms are combined into hydrogen molecules and oxygen molecules, respectively;

(3) Light the alcohol and place the beaker with the inner wall moistened with clear lime water over the flame. Clear lime water becomes cloudy, proving that the composition of the alcohol contains a carbon element after drying. The beaker is placed above the flame. Water droplets form on the inner wall of the beaker, which proves that the alcohol composition contains hydrogen. So fill out the form as follows:

< td> Prove that the composition of alcohol contains a carbon element

Experimental steps	Experimental phenomena	Conclusion< /td >
Light the alcohol and place the beaker with the inner wall moistened with clear lime water over the flame	The clear lime water becomes cloudy
Cover a dry beaker over the flame	There are water droplets on the inner wall of the beaker	Prove that the composition of alcohol contains hydrogen elements

So the answer is: (1) See the table above (2) In electrical conditions, water molecules; decompose into hydrogen atoms and oxygen atoms. Atoms and oxygen atoms are combined into hydrogen molecules and oxygen molecules, respectively (3) See the table above.

1. Experimental objective: Use various fruits to make fruit batteries and compare the relationship between the pH value of fruits and the voltage they generate. 2. Experimental requirements: Master the use of the voltmeter. 3. Experimental principle: the battery should use two metals to become the positive and negative electrodes. Between them are substances cconductors such as hydrochloric acid or alkali. These substances are usually electrolytes and are called electrolytes. Electrolytes can dissociate metal ions. Generally speaking, any metal that comes into contact with an electrolyte releases electrons and becomes positively charged ions. The reaction formula of fruit battery is as follows: Cathode (negative electrode): 2H+(aq) + 2e- →H2(g) 4. Experimental equipment: Measuring equipment: voltmeter, ammeter, wires, clips, test paper pH Battery components: oranges, lemons, apple plate: copper foil, zinc foil 5. Experimental steps: (1) Take two different fruits of similar weight (error less than 2 grams), cut them in half and measure the pH value of each fruit. Average the fruits to get the pH value of each fruit; (2) Insert zinc sheets and copper sheets into both ends of these fruits, cconnect the four fruit petals in series and connect them to the light emitting diodes; these fruits separately The voltage after series connection and the current through the light emitting diode. 7. Experimental conclusion: When the quality of different fruits is the same, the lower the pH value, the higher the voltage generated.