what is the expirement

Answers

Answer 1

Answer:

A Experiment is an operation or procedure carried out under controlled conditions in order to discover an unknown effect or law, to test or establish a hypothesis, or to illustrate a known law

Explanation:

Brainliest pls


Related Questions

which of these would best describe the outcome of increasing the kinetic energy of molecules in the picture above?

Answers

Can you show a picture please?

Arsenate (AsO43-) is structurally and chemically similar to inorganic phosphate (PO43-), and many enzymes that act on phosphate will also use arsenate as a substrate if it is available. However, unlike phosphates, organic compounds of arsenate are kinetically unstable. For example, acyl phosphates (such as 1,3-bisphosphoglycerate) require an enzyme to catalyze phosphate hydrolysis on a biologically relevant timescale, but acyl arsenates hydrolyze almost instantaneously in water without an enzyme.
a) Predict the effect on the net reaction catalyzed by glyceraldehyde 3-phosphate dehydrogenase if phosphate were replaced by arsenate.
b) Write a balanced overall equation for the conversion of glucose to pyruvate in the presence of ATP, ADP, NAD+, and arsenate.
c) Arsenate is extremely toxic to most organisms. Based on your answers above, explain why.

Answers

Answer:

A) The effect on the net reaction catalyzed by glyceraldehyde is that

The 1-arsen0, 3-phosphoglycerate will decompose without enzymes hence no ATP will be formed in the reaction ( phosphoglycerate Kinase )

B) There will be  no conversion of ADP to ATP from the conversion of glucose to pyruvate hence No balanced overall equation can be derived

C ) Arsenate is very toxic to most organisms and it is used mostly regarded  as poisons during the formation of glycolysis, it forms  1-arsen0, 3-phosphoglycerate which  hinders the formation of ATP because it is unstable and will hydrolyze quickly, this will also lead to the reduction in oxygen in cells thereby leading to the death of cells

Explanation:

A) The effect on the net reaction catalyzed by glyceraldehyde is that

The 1-arsen0, 3-phosphoglycerate will decompose without enzymes hence no ATP will be formed in the reaction ( phosphoglycerate Kinase )

B) There will be  no conversion of ADP to ATP from the conversion of glucose to pyruvate hence No balanced overall equation can be derived

C ) Arsenate is very toxic to most organisms and it is mostly regarded as  poisons during the formation of glycolysis, it forms  1-arsen0, 3-phosphoglycerate which  hinders the formation of ATP because it is unstable and will hydrolyze quickly, this will also lead to the reduction in oxygen in cells thereby leading to the death of cells

Those structures that are similar in all behavior is called homologous structure.

The answer of the following question is as follows:-

The effect on the net reaction catalyzed by glyceraldehyde is that  the 1-arsen0, 3-phosphoglycerate will decompose without enzymes hence no ATP will be formed in the reaction ( phosphoglycerate Kinase ) There will be no conversion of ADP to ATP from the conversion of glucose to pyruvate hence No balanced overall equation can be derived Arsenate is very toxic to most organisms and it is used mostly regarded as a poison during the formation of glycolysis, it forms  1-arsen0, 3-phosphoglycerate which hinders the formation of ATP because it is unstable and will hydrolyze quickly, this will also lead to the reduction in oxygen in cells thereby leading to the death of a cell.

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A) Calculate the vapor pressure of a 7% by mass benzaoic acid in ethanol solution at 30°C. The vapor pressure of pure ethanol at this temperature is 13.40 kPa. ( assume a 100 g of solution)
B) Calculate the boiling point of the solution above

Answers

Answer:

the answer is C

Explanation:

Read each question carefully, and answer yes or no to each one. At the end of each section, follow the directions to score your answers (pay close attention as the directions for scoring may change for each section). After you complete the entire assessment, total the points from all seven sections. This will give you a total health score. The higher the score, the more healthy your lifestyle. If you feel you have a low score, look back through the assessment and identify areas where you can change your unhealthy habits, and explain what changes you would make and why. Write your assessment in the essay box below.

Section 1: Physical Fitness
Do you exercise or play a sport for at least 30 minutes three or more times a week?
Do you stretching before and after exercising?
Do you warm up before exercising and cool down afterwards?
Do you think that you are at a healthy weight?
Are you mostly happy with the way your body looks and feels?
Do you think you have enough energy?
Give yourself one point for each No response and two points for each Yes response. Section score: ____

Section 2: Family History
Do you have a family member who:

has high blood pressure?
has diabetes?
has heart disease?
has cancer?
is extremely overweight?
Give yourself one point for each Yes response and two points for each No response. Section score: ____

Section 3: Hygiene and Medical Care
Do you floss your teeth every day?
Do you brush your teeth at least twice a day?
Do you visit the dentist at least once a year?
Do you use sunscreen?
Do you know basic first aid?
Are all your immunizations current?
Do you get your vision and hearing checked each year?
Do you see the doctor for a check-up once each year?
Do you feel you get enough sleep at night?
Do you know the warning signs for cancer?
Give yourself one point for each No response and two points for each Yes response. Section score: ____

Section 4: Nutrition
Do you eat a lot of red meat or eggs?
Do you add salt to your food?
Do you add sugar to your food?
Do you eat a lot of high-fat or high-sugar foods?
Do you add butter or cheese to your food?
Do you choose fried foods more often than baked or broiled foods?
Do you drink caffeinated drinks, such as coffee or sodas?
Do you skip meals?
Give yourself one point for each Yes response and two points for each No response. Section score: ____

Section 5: Drug Use
Do you smoke or chew tobacco?
Do you drink alcohol?
Have you ever used marijuana or other illegal drugs?
Have you ever abused a prescription drug?
Give yourself zero points for each Yes response and two points for each No response. Section score: ____

Section 6: Safety
Have you ever ridden with drivers who were under the influence of alcohol or drugs?
Have you ever ridden with drivers who speed or disobey traffic laws?
Do you ever forget to wear your seat belt?
Do you ever forget to wear a helmet when riding a bike or skateboarding?
Do you ever play with matches or hazardous materials?
Is there a gun in your house?
Give yourself zero points for each Yes response and two points for each No response. Section score: ____

Section 7: Emotional and Social Health
Do you have hobbies or activities that you enjoy?
Do you give your best effort when doing your work?
Do you find it easy to laugh?
Do you express anger in an appropriate way?
Do you easily fall asleep at night?
Do you share personal problems with someone you trust?
Do you feel well liked by others?
Do you have someone you can turn to if you need help?
Are your family members and close friends in good health?
Are you generally happy?
Give yourself one point for each No response and two points for each Yes response. Section score: ____

Total Health Score: ____

Answers

Answer:

Yes

Yes

Yes

All yes

Explanation:

Helpppppp plsssssssss

Answers

You are correct so far just add Ibex and the grass! Biotic means living

Answer:

air,water,rocks,and the ibex

Explanation:

these are the non living things I'm pretty sure

I HAVE 25 MINUTES TO FINISH True or false the deeper you go into Earth the temperature goes up ?

Answers

Answer:

true

Explanation:

you are getting closer to the core hope this helps!

Which phrase describes air density? increases as altitude increases Ο Ο Ο equals mass divided by volume pushes molecules in one direction exerts less pressure as it increases

♡︎PLS HELP IM TIMED PLS WILL GIVE BRAINLIEST!!!♡︎​

Answers

Answer:

The correct answer is B. equals mass divided by volume

Answer:

They were right, I got all the questions right. If you need answers I got them I guess?

Explanation:

Which of the following molecules is least soluble in water?​

Answers

Answer:

CCl4

Explanation:

Because it is non polar and non polar substances are insoluble in water.

The molecule which is least soluble in water is C(Cl)₄

Which molecules are soluble in water?

Water is polar molecule and only polar molecules are soluble in water.

(CH₃)₂CO is a polar molecule as due to partial positive and negative charges on carbon and oxygen atom as a result of which it is soluble in water.C(Cl)₄ is a non polar molecule as net dipole moment of the molecule is zero, so it is insoluble in water.CH₃OH is also polar molecule and shows solubility in water.(CH₃)₂O is also polar and dissolve in water.

Hence tetra chloro carbon is insoluble in water.

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Which ecosystem is most resilient to change due to its high diversity?
mountain meadow
stormwater pond
coral reef
arctic tundra

Answers

stormwater pond .............

Coral reefs are believed to be the most diverse of any ecosystem. Hence it is most resilient to change due to its high diversity. Thus, option c is correct.

What are coral reefs ?

Coral reefs are sometimes referred to as the "rainforests of the sea" due to the richness of life that can be found there. The health of coral reefs is essential for around 25% of the ocean's fish. In the many crevices created by corals, fish and other species find shelter, food, breed, and raise their young.

More than 7,000 different kinds of fish, invertebrates, plants, sea turtles, birds, and marine mammals may be found here. Coral reefs offer chances for recreation, serve as a barrier against erosion and storm damage, and support local economies. They are also a source of fresh medications and food.

More than 500 million people rely on reefs for safety, income, and food. On and around reefs, fishing, diving, and snorkeling generate hundreds of millions of dollars for nearby businesses. Hence, option c is correct.

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Estimate how much heat in joules is released when 25.0 g of water (C = 4.184 J/g°C) is cooled from 80.0°C to 30.0°C?

Answers

Answer:

5230 J

Explanation:

m = 25 g = 0,025 kg

c = 4,184 J /(g * °C) = 4184 J /(kg * °C)

[tex]t_{1}[/tex] = 80 °C

[tex]t_{2}[/tex] = 30 °C

The formula is Q = c *m * ([tex]t_{2} - t_{1}[/tex])

Calculating:

Q = 4184 * 0,025 * (30 - 80) = 5230 J

Note that we get a negative heat (-5230 J). It just means that it is released.

The amount of heat will be 5230 j.

What is heat?

Heat is a type of energy that is transferred between both the system and its surroundings as a result of temperature variations.

Calculation of heat.

Given data:

Mass = 25.0 g = 0.025 kg

C = 4.184 J/g°C

[tex]T_{1}[/tex] =  80.0°C

[tex]T_{2}[/tex] = 30.0°C

Q= ?

By using the formula of heat.

Q = MC ([tex]T_{2} - T_{1}[/tex])

Put the value of given data in heat equation.

Q(heat)  = 0.025  × 4.184  ( 30 - 80)

Q(heat) = 5230 J.

Therefore, the amount of heat will be 5230 J.

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How are scientists trying to use a plant catalyst to create solar fuels? Someone please answer?

Answers

Answer:

plants can be used as fuel because plants can be burned so they compose the plants to make a liquid

PLEASE HELP ME ITS DUE IN 25 MINUTES True or false iron and nickel are less dense than silicates ?

Answers

The answer is false
Iron and nickel is more dense
false, iron and nickel is apart of the core in the earth. meaning it’s more dense that silicates.

Please help quickly as possible thank you :) ​

Answers

When an object/liquid/food etc contains hot energy, the heat particles are moving around causing the heat. 8ounces of soup would cool off faster, because there is less liquid for the heat particles to be in, there for less heat particles, therefore cooling off faster. Pls give Brainliest, and good luck!

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ontrast the mechanisms of the following two reactions, the dehydration and condensation of ethanol. Part A The first step of dehydration of ethanol is _______. The first step of condensation of ethanol is ________. The first step of dehydration of ethanol is _______. The first step of condensation of ethanol is ________. protonation, deprotonation protonation, protonation deprotonation, protonation deprotonation, deprotonation Request Answer Part B Dehydration of ethanol is __________, condensation of ethanol is __________. Dehydration of ethanol is __________, condensation of ethanol is __________. a substitution, an elimination an elimination, a substitution a substitution, a substitution an elimination, an elimination Request Answer

Answers

Answer:

Part A: Protonation, Protonation

Part B: An elimination, A substitution

Explanation:

The dehydration ethanol and the condensation of ethanol all begin from the protonation of ethanol. This is because, water is a good leaving group. Thus, the protonation of the -OH moiety of the molecule is the first step in each mechanism.

The dehydration of ethanol is an elimination reaction because it involves the loss of H-O-H from the ethanol molecule while the condensation of ethanol is an substitution reaction because the -OH moiety is replaced by -OCH2CH3.

The ground -state electron configuration contains 6p unpaired electrons .

Answers

Oh okay thanks for the information (Btw what is actually your question

The electronic configuration is the depiction of the electron present in the atomic shells. The ground-state electron configuration containing three unpaired 6p electrons is bismuth.

What is electronic configuration?

The electronic configuration is said to be the representation of the distribution of the electrons in the orbitals or the sub-shell of the atom. It shows the arrangement from the lower to higher energy levels.  

The element which contained an unpaired 6p electron is bismuth (Bi). It has an atomic number, 83, and an electron configuration: [Xe] 4f¹⁴5d¹⁰6s²6p³. The p orbital can accommodate six electrons and hence the three electrons are unpaired.

Therefore, in the electronic configuration with unpaired 3p orbitals, the element will be bismuth.

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Your question is incomplete, but most probably your full question was, The ground-state electron configuration contains three unpaired 6p electrons, what is the element symbol?

What are the main parts of a simple electrie motor, like the one found inside a remote control car? O a generator, wires, and turbine magnets and coils of wire O electromagnets only​

Answers

Answer:

A DC power supply, commutator, rotor armature, axle, and a field magnet.

A sample of potassium has an average atomic mass of 39.0983amu. There are three isotopic forms of potassium element in the sample. About 93.2581% of the potassium atoms are 38.9637amu mass (39K); 0.0117% are 39.9639amu mass (40K), and the remaining isotope 41K is of 40.9618amu mass. Calculate the percentage composition of 41K. Report your answer with five significant figures.

Answers

Answer:

Percent Composition of 41K = 6.7302%

Explanation:

The explination is in the image.

The percentage composition of 41K isotope of potassium according to the given data is 6.7302 percent.

Composition of isotopes:

Given that the atomic masses of the potassium isotopes are:

mass of 39K = 38.9637amu

mass of 40K = 39.9639amu

mass of 41K = 40.9618amu

and the percentages are:

percentage of 39K = 93.2581%

percentage of 40K =  0.0117%

percentage of 41K = x

Given average mass of potassium = 39.0983amu

sum (mass of isotopes × percentage abundance) =  average mass

38.9637 × 93.2581% +  39.9639 ×  0.0117%  + 40.9618 × x = 39.0983

x = 6.7302%

So the percentage composition of 41K is 6.7302%

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Two identical spoons are electroplated with Ag or Cd through the use of the electrolytic cells. A current of 5.00A was supplied to each cell for 600. seconds, and the masses of the spoons before and after the electroplating were recorded. Write down the mathematical equations can best be used to account for the much larger increase in mass of the spoon electroplated with Ag compared with the spoon electroplated with Cd.

Answers

Answer:

Explanation:

One farad of charge is capable of depositing one gram equivalent of a metal

One gram equivalent of Ag = 108 grams

One gram equivalent of Cd = 112 / 2  grams

= 56 grams . [ for cadmium equivalent mass = atomic mass / s ]

electric charge flowing = current x time = 5 x 600 = 3000 coulomb

one farad = 96500 coulomb

96500 coulomb  deposits 108 gram of Ag

3000 coulomb deposits 108 x 3000 / 96500 gram

= 3.35 grams of Ag

Similarly ,

96500 coulomb  deposits 56 gram of Cd

3000 coulomb deposits 56 x 3000 / 96500 gram

= 1.74  grams of Cd

So there will be much larger increase in the spoon of Ag due to larger deposit of Ag by charge .

The student recorded the mass of the cup + sample incorrectly and started with 2.20 g of hydrated compound but used 2.00 g in the calculations. Explain how this error will affect the calculation for the number of moles of water in the hydrate? Will the final answer be artificially high or low? How do you know?

Answers

Answer:

low

Explanation:

We were informed in the question that the student had incorrectly recorded the mass of cup + sample as 2.20 g but inadvertently used 2.00 g in the calculations.

This error will cause a slight decrease in the mass of water and ultimately decrease the number of moles of water in the hydrate.

What i am saying is that the number of moles of water obtained in the calculation will be artificially low.

The lobes are important for speech and language. O A. parietal O B. temporal o o Ο Ο C. frontal O D. occipital​

Answers

Answer:

Explanation:

D or b

Sorry if wrong

Answer:

temporal

Explanation:

What is a mixture of two insoluble mixtures called​

Answers

Answer:

Emulsion

Explanation:

Emulsion is a special type of mixture formed by combining two liquids that do not normally mix. An example of emulsion is;

Oil and Water

If the density of a sample of skim milk is 1.04 g/mL, how many grams are in 0.50 qt of skim milk?

Answers

Answer:

16grs in 0.5ml of milk

Explanation:

16gr in 0.5 ml of milk

MEDICAL FORENSICS

please help me i only get one chance to do this please

Answers

Answer:

i think the answer is b temperature

Answer:

no

Explanation:


Is this answer correct

Answers

Answer:

Yes

Explanation:

what is the molarity of ethanol c2h5oh in an aqueous solution that is 36.4% ethanol by mass

Answers

Answer:

the answer is A

Explanation:

The vapor pressure of liquid octane, C8H18, is 40.0 mm Hg at 318 K. A sample of C8H18 is placed in a closed, evacuated container of constant volume at a temperature of 448 K. It is found that all of the C8H18 is in the vapor phase and that the pressure is 71.0 mm Hg. If the temperature in the container is reduced to 318 K, which of the following statements are correct?

a. The pressure in the container will be 42.8 mm Hg.
b. Liquid octane will be present.
c. Only octane vapor will be present.
d. Some of the vapor initially present will condense.
e. No condensation will occur.

Answers

Answer:

a, d

Explanation:

a. The pressure in the container will be 42.8 mm Hg.

d. Some of the vapor initially present will condense.

You have two compounds that you have spotted on a TLC plate. One compound is more polar than the other. You run the TLC plate with neat hexanes and find that only one spot moved a small distance up the plate. Next you made a 50/50 mixture of hexanes and ethyl acetate. What might you expect to see on your TLC plate (what would the spots do)?

Answers

Answer:

The two spots will move up the plate.

Explanation:

We have to first understand the rudiments of chromatography. In chromatography, there is a stationary phase and a mobile phase. The stationary phase does not move. In this case, the stationary phase is the TLC plate.

The mobile phase is the solvent used to perform the chromatography. The movement of the spots depends on the composition of the solvent.

When neat hexane was used, only one spot was moved. This must be due to the interaction of the nonpolar hexane with the less polar compound. However, when a 50/50 mixture of hexanes and ethyl acetate is used, the both compounds are found to move up the plate.

g antimony is used as a catalyst in the production of many plastic polyesters. if the plasticis used as a container, some trace amounts of antimony may diffuse into the interior. whileexperimenting, you determine that 44.7μg/lof antimony is present in a batch of fruit juice.at that rate, how many moles of antimony would you expect to find in a gallon of the juice?note that the molecular mass of antimony is 121.76g/mol

Answers

Answer:

1.39x10⁻⁶ mol

Explanation:

First we convert the gallon of juice to liters:

1 gallon = 3.785 L

Then we calculate the mass of antimony that would be in 3.785 L, using the given concentration:

44.7 μg/L * 3.785 L = 169.2 μg

Then we convert mass into moles, using the molecular mass:

169.2 μg ÷ 121.76 μg/μmol = 1.39 μmol

Finally we convert μmol into mol:

1.39 μmol = 1.39x10⁻⁶ mol


HELPP ASAPP
Select the answer that expresses the result of this calculation with the correct
number of significant figures:
(6.167 + 83.0) / 5.1

Answers

Answer:

The answer for the calculation is as follows

17.48373

The pKa of an acid depends partly on its environment. Predict the effect of each of the following environmental changes on the pKa of a glutamic acid side chain. (a) A lysine side chain is brought into proximity. (b) The terminal carboxyl group of the protein is brought into close proximity.

Answers

Answer:

A. Decrease

B. Increase

Explanation:

A. A lysine side chain is brought into proximity:

lysine is basic in its nature, it would have to stabilize the electrostatic interaction and also weak interactions existing among the acidic amino acids and hydrogen bond. This would then reduce or decrease the pH and thus pKa of the protein.

B. The effect of this on pKA is an increase on the pKA. The carboxyl group is acidic. When it is removed, it would then cause the pKA to be increased. There would be accumulation of more negative change by basic amino acids increasing the pKA.

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Mendel's law of segregation is describing or explaining which process? a mitosisb. binary fissionc. meiosisd. asexual reproduction To complete her holiday wrapping, Bella needs identicalstrips of ribbon measuring 3.5 feet each. She has 85 feet ofribbon in total. About how many pieces of ribbon can shecut from this long strip? Five friends share 6 snacks equally. How many fruit snacks will each friend get? should religious belief influence law,five paragraph argument. Which of the following is a belief of Christianity?A)Food must be prepared in a specific way.B)Muhammad is the final prophet of God.C) Moses is the most important prophet.D) Jesus is the messiah and was resurrected Glucose is an important energy source for organisms. Think about how this molecule compares to the molecules shownabove. Use what you know about how organisms use molecules to gain energy and matter to answer the followingquestion:Why might organisms use glucose as their main source of energy? Which value is greater 4/5 or 70% WILL GIVE BRANLIEST. 30 POINTSExplain the three ways genetic variation can occur in a population. Maria had 6 feet of ribbon. She will cut the ribbon into pieces that are 2/3 of a foot long. How many pieces of ribbon will Maria have?please solve! Read line 69-78. What do annie's statement about hypocrisy reveal about her conflict with her mother What happened to the population of China during the Han dynasty? How is the brain involved with the senses and what is the relationship to the person to the way reacts to objects How does education funding affect Black students? Dan drives 23 miles to work every day. He works 5 days a week. How many miles does he travel to and from work over 52 weeks? Please help I dont understand. Pete and Shirley are filing a joint return. They have two dependent children. What is the total amount of their exemptions for tax year 2019? A. $0 B. $4,200 C. $8,400 D. $16,800 why and how do ions form? find x=, if x-5=10 HURRY!!!! Answer it like this 1: answer here 2: answer hereMake sure you round both to the nearest tenth Find the surface area of the pyramid. The side lengths of the base are equal.there are 3 sides and a bottomthe base is 12 and the height is 17