Jamie completes the following steps in an experiment to investigate how temperature affects how fast something will rust in water. He places a nail in a bowl of water in the sun and a nail in a bowl of water in the shade. He also leaves an iron nail out of the water in a dry bag out of the sun. Why would Jamie leave one out of the water and out of the sun?
A Jamie also wants to test if the water affects how fast the iron nail will rust.
B Jamie notices that the size of the nail is different, so he does not want to use it later.
C Jamie doing all these steps to create a control group to compare his results to.
D Jamie puts the nail in a cooler place to see if it will rust as fast as the other items.
Answers
Jamie notices that the size of the nail is different, so he does not want to use it later. Thus option B is correct.
What is rusting?Rusting is defined as a rust, a combination of iron oxides, forming on the surface of iron objects or structures.
It can also be defined as a typically reddish-brown oxide generated by the catalytic interaction of iron and oxygen in the presence of water or air moisture.
Rusting is an oxidation reaction.
Oxidation is defined as a type of reaction in which the loss of electrons or the increase in the oxidation state of a molecule or its constituent atoms.
It can also be defined as a process in which atoms or groups of atoms lose electrons.
Thus, Jamie notices that the size of the nail is different, so he does not want to use it later. Thus option B is correct.
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Related Questions
Which type of data would be considered qualitative data? diameter measured distance travelled density calculated discoloration amount
Answers
Answer:
Explanation:
Qualitative data is descriptive information that cannot be measured in numbers. So among the choices, only discoloration amount is descriptive and cannot be measured.
The type of data which will be considered as qualitative data is discoloration amount.
What is qualitative data?Qualitative data is that data which depends on the quality not in the quantity of any object.
Diameter, travelled distance and density are the quantitative data means they all depends on the quantity and measurement. Whereas the discoloration amount is the qualitative data as it is not measurable and not depends on the quantity.
Hence correct answer is discoloration amount.
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what reaction would happen if nitrogen and hydrogen were mixed together?
Answers
Answer:
and chemical reaction aka explosion
Explanation:
Candice did an experiment where wondered if temperature affects how cheese molds. She put a piece of cheese next to a different heat lamp and then measured how much mold was on each cheese. What is the DEPENDENT variable?
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In this activity, you will investigate how the motion of objects of different masses is affected when the same force is applied to them. You will use the scientific method to set up your experiment. Question__________________________________.
Answers
Answer:if a bot walks up to you what do you do
Explanation:
you slap the F out of them
Which simple machines make up scissors?
A) one lever and one wedge
B) two levers and two wedges
C) one inclined plane and two pulleys
D) two inclined planes and two levers
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which phrase describes air pressure O decreases with denser air O decreases as altitude decreases O equals mass divIded by Volume O decreases as a result of fewer air particles pushing down
Answers
Air pressure decreases as altitude decreases. This phenomenon occurs because the atmosphere's density diminishes with increasing height above the Earth's surface and the correct option is option 2
As one ascends to higher altitudes, there are fewer air particles above, leading to a decrease in air density. Consequently, the pressure exerted by the air decreases at higher elevations.
Conversely, at lower altitudes, the air is denser due to the larger number of air particles above, resulting in higher air pressure. This relationship between air pressure and altitude is crucial for understanding weather patterns, climate changes, and the functioning of various natural processes on Earth.
Thus, the ideal selection is option 2.
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What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
In your own words, explain how gametes (the cells made for sexual reproduction) differ from normal body cells.
Write your response below.
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Answer:
gametes have to become haploid - they have to reduce their genetic material to a single copy, while somatic cells are diploid
Explanation:
What was the low temperature for hurricane Katrina?
Answers
Answer: 90 degrees F
Explanation:
The graph below shows the motion of a car.
What is the average speed of the car between 0 and 8 seconds to the nearest hundredth in m/s?
Answers
Do you think rayon when burnt will stick to the body like other synthetic fibers?
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Which two of the following organisms are omnivores in this food web?
A) rotifer
B) black
C) golden algae
D) copepod
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a particular environment is becoming warmer over time due to rises in Carbon Dioxide produced by humans. How would the rabbit population be impacted by enoviormental change?
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I think the answer is b
Identify all the correct examples of weather
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Answer:
Here are some correct examples of weather:
Sunny and warm weatherRainy and humid weatherFoggy and cool weatherSnowy and cold weatherWindy and stormy weatherHazy and hot weatherThunderstorms and lightningHurricanes and tornadoesClear and crisp weatherOvercast and dreary weather.
Explanation:
espero te ayude
How does an atom change if all of its electrons are removed?
p.s. I'll mark the first answer the brainliest if it is correct! ;)
a. The atom’s volume increases.
b. The atom’s mass increases.
c. The atom becomes positively charged.
d. The atom becomes negatively charged.
Answers
c. The atom becomes positively charged
if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom
A balanced chemical equation has the same number and type of atoms in the reactants as compared to the products. An unbalanced chemical equation does not. True or false?
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(pls help me)
Which claim do you think is the most convincing so far?
Claim 1: , If you follow the instructions, the POW kits , will always, heat the water above the correct temperature for pasteurization (65°C), but some people didn’t follow the instructions.
Claim 2: Even if you follow the instructions, the POW kits will not heat the water above the correct temperature for pasteurization (65°C).
Draw a star on the evidence card that best supports your claim. Why did you choose this piece of evidence?
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Answer:
Claim 1
Explanation:
in a neap tide, the moon's effect on blank
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Answer:
Neap tides occur during the first and third quarter moon, when the moon appears "half full"
Why do you think the older scientist disregarded the younger scientist's prediction?
Answers
This is not true at all the younger and oldest scientist are equally as important. Just giving an example of what the older scientist might have thought.
Research gestation and mating. Find out three other mammals' gestation periods and mating rituals. How long is the gestation period, how do the mates court each other, and do they mate for life? What are some other interesting facts? Choose any three mammals you are interested in and use any sources you like. Write a three-paragraph essay comparing the gestation period of the three animals.
For an extra challenge, see if you can find out if any mammal has a shorter gestation period than mice or a longer one than Asian elephants.
Answers
Answer:
hold on i will help you soon
The period of time when sexual intercourse takes place between two organisms is called mating. However, all the matings need not end in fertilization.
The gestation period is a time when the embryo develops completely into a fetus. This is usually from the time of fertilization to the time of giving birth.
Let us take the comparison of the gestation period of 3 mammals.
The gestation period of a cow varies from 279- 287 days. The mating between the bull and cow occurs during the heat or oestrus period of the cow. At that time the bull mounts on the cow or vice-versa may happen during the mating period. This is termed bulling.
In the case of horses, the gestation period is 320-380days. The mating ritual in a horse is a bit different than in a cow. It usually has three phases of sexual behavior which includes: courtship, mating, and post mating behavior. During courtship, the stallion which is the male horse will approach the mare, prance, sniff her, nuzzle her, and groom her. The mare which is the female horse may squeal, kick, or move away to show the stallion that she is not ready. When the mare is receptive to breeding, she may stand still, deviate her tail, and urinate, leading the stallion to mount her. It usually breeds well in pastures than in controlled environmental breeding conditions.
Whereas in camels, the gestation period is far longer than in cows and horses. It is about 360-440days. The male camel displays its organ called a dulla to show out is ready for mating. The male camel Urinates on its own tail and swishes it over its back so that the Urine contains female-attracting pheromones. It shows distinct violent behavior towards other male camels. The female camel undergoes an estrous cycle in the breeding season which lasts receptive for 3-4 days, and non-receptive following the other 10 days. In the receptive period, the camel sits down and exposes its genitalia for the male camel to copulate. The whole mating takes about 20 minutes and is accompanied by gurgling and frothing by the male and bleating by the females.
It should be noted that African elephants have longer gestation periods like Asian elephants whereas no other animal has a longer gestation period than an elephant or a shorter gestation period than mice.
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A student wants to determine the effect of mass on kinetic energy. She will drop two balls of the same size into a pool of water. Which investigation method should the student use?(1 point)
a. She should drop two balls of the same mass from different Hights.
b.she should drop two balls with different masses from the same Hights
c.she should drop two balls with different masses from different Hights
d.she should drop two balls of the same mass from the same Hights
Answers
Which evidence supports the claim that matter can bend light waves?
A. A red apple absorbs green light waves found in sunlight.
B. A light wave can travel through empty space.
C. A wall prevents people from seeing what is on the other side.
D. People's legs appear shorter when they are standing in water.
Answers
Answer:d
Explanation:I’m not 100% sure how to explain it but I’m almost for sure it’s d.
Answer:
D
Explanation:
I think it would be D. Refraction is an example of matter (being water) bending light as it travels through another medium (from air)
In an electrical wire, if instead of copper, plastic wire is used. Would it conduct electricity?Justify your answer.
Answers
Answer:
No, a plastic wire would not conduct electricity. This is because plastic is an insulator that does not allow electric current to flow through it. In a wire, electrical conductivity is provided by the movement of charged particles - typically, electrons. Copper is an excellent conductor of electricity because it has a high number of free electrons that are not bound to atoms and can move through the wire very easily. However, in a plastic wire, the tightly bound electrons of its atoms do not allow for the free flow of charges, thus preventing the passage of electric current.
Simple and complex molecules are similar in that they both involve ____ atoms A water B simple C bonded D complex
Answers
Answer:
The answer is C.
Explanation:
Please give brainliest
Answer:
D
Explanation:
complex, in chemistry, a substance, either an ion or an electrically neutral molecule, formed by the union of simpler substances (as compounds or ions) and held together by forces that are chemical (i.e., dependent on specific properties of particular atomic structures) rather than physical.
What rules are used to balance a chemical equation
Answers
Answer:
there must be the same number of each type of atom on both sides of the equation
Explanation:
hhhhhhheeeeeeelllllllppppppppppp
Answers
Answer:
the answer is C hope I helped
Answer:
c
Explanation:
Which type of selection is shown in the graph above?
A. Disruptive selection
B. Stabilizing selection
C. Disaster Selection
D. Directional selection
Answers
In the given graph, the Evolved Population is showing disruptive selection. Hence, the correct option is A. Disruptive selection.
Stabilizing selection is a form of natural selection where individuals with average phenotypes are more likely to survive and reproduce their number. In this selection, the population tends to maintain a stable phenotype. As shown in the graph, the population is maximum for the population having a moderate length of neck.
Disruptive selection is a type of natural selection where extreme phenotypes are preferred over average phenotypes, leading to an increase in genetic variation and the population becoming more diverse. In this type of selection, the population diverges into two or more distinct phenotypic groups. As shown in the graph, two ranges of the population are favored for having traits for extreme lengths of the neck.
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Question 8 of 50
2 Points
Which type of structure would contain a few non-metal atoms?
O A. Giant covalent structure
B. Simple covalent structure
C. Metallic lattice
OD. Ionic lattice
Reset Selection
Answers
Answer:
b
Explanation:
b
The type of structure would contain a few non-metal atoms are simple covalent structure. Option B is correct.
What is covalent structure?A covalent bond is a chemical bond between two atoms, ions or molecules in which electron pairs are shared between elements and covalent bond can also be said as a molecular bond.
Covalent bonds form or made by between two non-metallic atoms or compounds with identical or same electronegativity for example hydrogen and oxygen are two non metals and bond to form water molecule.
Therefore, type of structure would contain a few non-metal atoms are simple covalent structure. Option B is correct.
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A mutation occurs whenever one of the bases in DNA is changed. What letters represent those bases?
Answers
C: cytosine
g: guanine
t: thymine
Lewis is running in a race. His muscles need oxygen. Which best describes how multiple systems interact to bring him into homeostasis? The circulatory stem brings oxygen to the respiratory system, which delivers oxygen to the muscular system. The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the muscular system. The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the skeletal system. The circulatory system brings oxygen to the respiratory system, which delivers oxygen to the skeletal system.
Answers
the respiratory system brings oxygen to the circulatory system, which delivers oxygen to the muscular system