Answer:
d) to see if the orginal results are reproducible.
PLS HELP FAST!!!! You have a natural-gas (methane, CH4) stove. When you ignite a natural-gas stove, the methane reacts with oxygen (O2) to produce carbon dioxide and water vapor. Write a balanced equation for this reaction, and be sure to show your work. (6 points)
Answer:
Methane (CH4) ( C H 4 ) burns in oxygen to produce carbon dioxide and water vapor. The balanced equation is: CH4+2O2→CO2+2H2O C H 4 + 2 O 2 → C O 2 + 2 H 2 O .
Explanation:
The balanced equation for the reaction of methane with oxygen is CH₄ + 2O₂→CO₂ + 2H₂O.
What is methane?Methane is a gas and a chemical compound with formula CH₄. It is a colorless and odorless gas and very flammable. It is made up of carbon and hydrogen. Methane comes under greenhouse gas.
As it is highly reactive, it reacts with the gases present in the environment. Here, methane is reacting with oxygen. When one molecule of methane reacts with two molecules of oxygen, it produces carbon dioxide and two molecules of water.
The reaction happens in the presence of heat and high temperature. The balanced reaction is written when the same number of moles are present on both sides of the reaction.
CH₄ + 2O₂ → CO₂ + 2H₂O.
Thus, the balanced equation for the reaction CH₄ + 2O₂→CO₂ + 2H₂O CH₄ + 2O₂ → CO₂ + 2H₂O.
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Lawrence is a long distance runner on the school’s track and field team. Proper nutrition is very important for athletes so Lawrence wants to make the right food choices before a big track meet.
Given what you know about how food is broken down to provide energy in the body, which is the best choice for Lawrence to eat before his event?
a supplement bar that provides 500 Calories composed of complex sugars
a candy bar that provides 500 Calories composed of simple sugars
a protein shake that provides 500 calories composed of complex sugars
a fruit smoothie that provides 500 calories of simple sugars
Answer:
a supplement bar that provides 500 Calories composed of complex sugars
Explanation:
Got it right on edge
Glucose is broken down in the cytoplasm of the cell. What is
this process called?
Answer:
glycolysis hope this helps <3
Explanation:
In stage one, glucose is broken down in the cytoplasm of the cell in a process called glycolysis. In stage two, the pyruvate molecules are transported into the mitochondria
Answer:
glycolysis
Explanation:
Which of the following would be the correct classification for the soil and earth material in the most productive aquifer?
low porosity, high permeability
high porosity, high permeability
low porosity, low permeability
high porosity, low permeability
Please help ASAP
(50 points if you help FAST)
Answer:
B. high porosity, high permeability
C. low porosity, low permeability
Explanation:
Cell size and shape are important factors in determining the rate of diffusion. Think about cells with specialized functions, such as epithelial cells that line the small intestine or plant root hairs. What is the function of these cells? Sketch the shape of these cells. How does the shape of these cells relate to their function?
Answer:
Epithelial cells are the protective cells. They form the outer covering of the body surface which protects the body from any external danger.Cuboidal epithelial cells, as their name suggests, are shaped like cubes. These are typically found in tissues that secrete or absorb substances, such as in the kidneys and glands. Columnar epithelial cells are long and thin, like columns. These are usually found in places that secrete mucus such as the stomach.
What are the five categories of adaptations?
The five categories of adaptations are migration, hibernation, dormancy, camouflage, astivation.
What is migration?The term migration has been defined as when the birds, animals, or human beings leaves the native place and move towards a new place due to weather or other physical condition is known as migration. Generally, when it is too much cold the birds of that particular area migrated to the place where they found suitable temperature for their survival.
The stage of dormancy is the stage when seed gets closed and not able to germinate as it closes its outer wall. The term hibernation is defined as the particular time period in which the organism hybernate himself for a period of time when the weather or the outer environment is not safe, or fit for his survival.Generally, when it is too much cold the birds of that particular area migrated to the place where they found suitable temperature for their survival.
Therefore, The five categories of adaptations are migration, hibernation, dormancy, camouflage, astivation.
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1. What is the density of an object that has a mass of 1,470 g and volume of 42 mL?
Answer:below
Explanation:
ρ = m/V=
1470 gram/42 milliliter
= 35 gram/milliliter
= 35000 kilogram/cubic meter
P=
MULTIPLE CHOICE QUESTION
Pick all the correct answers
unsaturated fatty acids have the maximum
amount of hydrogens
unsaturated fatty acids have double bonds
saturated fatty acids have double bonds
Trans fats are the healthiest fats to eat
because they are the only ones found in
nature
saturated fatty acids have the maximum
amount of hydrogens
Trans fats are the worst fats to eat because
they are not found in nature
Answer: These are all of the correct answers
Unsaturated fatty acids have double bonds.Saturated fatty acids have the maximum amount of hydrogensTrans fats are the worst fats to eat because they are not found in nature.Explanation:
BRAINLIEST BRAINLIEST BRAIBLIEST PLEADE ANSWER DUSUSISISJJAIXNDJDD
Answer:
uh I am not really sure But I think it is HE
Explanation:
It appears the answer must be:
HydrogenWhich grouping has the least complex body plan?
Answer:
The correct answer to this question is "poriferia."
Explanation:
The common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.
Answer:
The correct answer to this question is "poriferia."
The common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.
Explanation:the common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.
what happened as a result of over hunting whales
When stomata are closed during hot weather, Oxygen combines with RuBP and a wasteful process occurs, known as:
a. photo phosphorylation
b. photo transpiration
c. photochemical
d. photorespiration
Answer:
Photorespiration
Explanation:
What would happen if the enzyme used for cellular respiration or photosynthesis to break after a few cycle? Why?
Answer:
Please mark as brainliest!!!
Explanation:
Cells face a related problem when they break down fuels, such as glucose, to produce ATP. If the cell’s supply of ATP is low, it would do well to break down glucose as quickly as possible, replenishing the ATP it needs to “keep the lights on.” If the supply of ATP is high, on the other hand, it might not be such a good idea to oxidize glucose at top speed. ATP is an unstable molecule, and if it sits around in the cell too long, it’s likely to spontaneously hydrolyze back to ADP. This is like the case of the melted ice cream sandwich: the cell has spent glucose to make ATP, and that ATP ends up going to waste.
It’s important for a cell to carefully match the activity of its fuel breakdown (pathways to its energy needs at a given moment. Here, we'll see how cells turn cellular respiration pathways “up” or “down” in response to ATP levels and other metabolic signals.
Compare the Viking 1 and 2 probes to the Pathfinder probe that landed on Mars in 1997. How was their technology different?
Answer:
Explanation:
In 1976, The Viking 1 and Viking 2 probes landed on Mars. For six years they transmitted fascinating panoramic views of the red and rocky soil of Mars back to Earth. Twenty years passed before a third probe landed on Mars. In 1997, the Pathfinder probe landed a miniature vehicle named Sojourner on the planet. The probes operated for three months and sent back large amounts of data on the Martian environment. At the same time, the Mars global surveyor probe was placed in orbit to take an overall portrait of the planet. It supplied hundreds of thousands of bits of information, especially on climatic variations.
Answer:
Viking 1 and Viking 2 probes transmitted panoramic views of the red and rocky soils back to Earth after six years later. The Pathfinder probe sent back large amounts of data of the environment especially about climatic variations in only three months. You can tell the technology was very different between these two because of how long it took for each probe to gather data.
Write five general properties of minerals
Answer:
Color, luster, streak, hardness, and cleavage
Explanation:
help what goes where help asap will try to mark brainliest!!
Somebody help me plsss
Answer:
1. give up 1
2. give up 2
3. give up 3
4. gain 3
5. gain 2
6. gain 1
Mark me as brainliest if you found it helpful
what is an acid? What is a base?
Answer:
An acid is a substance that donates hydrogen ions. Now there are more hydrogen ions than hydroxide ins in the solution. This kind of solution is acidc. A base is a substance that accepts hydrogen ions. When a base is dissolved in water, the balance between hydrogen ions and hydroxide ions moves the other way.
Explanation:
Answer:
An acid–base reaction is a chemical reaction that occurs between an acid and a base. It can be used to determine pH.
Explanation:
An acid is a substance that donates protons or accepts a pair of valence electrons to form a bond.
A base is a substance that can accept protons or donate a pair of valence electrons to form a bond. Bases can be thought of as the chemical opposite of acids.
HEP PLEASE btw the answer is not D I am not sure what’s the answe
Answer:
I believe the answer is A
Explanation:
HELP PLEASE
Which of these chemicals is not a pollutant?
A. Methane
B. Nitrogen gas
C. Nitrate
D. Carbon dioxide
Answer:
All these chemicals are primary causes of pollution. Although, only one isn't an air pollutant. Which would make my best Guess C. Nitrate
Explanation:
A. Methane Is the main component in gas and oil. Oil companies have been responsible for polluting our air with about seven million tons of methane per year.
B. Nitrogen gas in general is one of the main air pollutions. otherwise know as Nitrogen dioxide.
C. Nitrates are found in ground waters and transfers into the soils surrounding said waters. Nitrates commonly are a cause of death in infants when drinking tab water or eating crops grown from nitrate infected soils. Adults aren't nearly as infected by this.
D. Carbon Dioxide is a greenhouse gas that pollutes our air and has been a main cause of global warming.
I'm at a loss for answering this question since all of these are polluting our earth in some way. The only way I can think to answer this is that all but one are air pollutants. So maybe the one that is not a air pollutant is the correct answer. My best guess is C. Nitrate
Hopes This Helps :)
ASAP PLEASE
How are photosynthesis and cellular respiration related?
Group of answer choices
The products of photosynthesis are the reactants of cellular respiration.
The reactants of photosynthesis are the reactants of cellular respiration.
The reactants of photosynthesis are the reactants of cellular respiration.
The products of photosynthesis are the products of cellular respiration.
Answer:
The answer is The products of cellular respiration are the same as the reactants of photosynthesis.
Explanation:
because they have the same reactants
What would happen if the squirrel population were eliminated
How does a catalyst work?
A. by increasing the temperature of a chemical reaction
B. by decreasing the pressure of a chemical reaction
C. by increasing the concentration of reactants in a reaction
D. by decreasing the activation energy of a reaction
Answer:
D. By decreasing the activation energy of a reaction
Explanation:
Suppose we completely stopped burning fossil fuels immediately. How many years would it take to return to atmospheric CO2 levels from the year 1800, about 600 GtC? Use the Gizmo to find the answer.
Answer:
Explanation:
It would take 50 years to return to atmospheric CO2 levels from the year 1800. I know this because I set the fossil fuel usage to 0 and proceeded to simulate 50 years and that’s when the atmospheric CO2 levels returned to 600 GtC.
As per observation It could take 50 years to go back to atmospheric CO2 degrees from the yr 1800.
Each year, there has been no extrade in the quantity of CO2 withinside the ecosystem because of soil and land plants. coal also can be the answer.
What is co2 quantity ?Since 2000, the worldwide atmospheric carbon dioxide quantity has grown with the aid of using 43.5ppm, an growth of 12 percent. The contemporary-day document of atmospheric carbon dioxide degrees commenced with observations recorded at Mauna Loa Observatory in Hawaii.
Thus it is well explained.
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PLZ PLZ HELLPP MEEE will mark brainliest
Which of the following does not occur in an aquatic ecosystem as a result of nutrient loading?
a. acidification of the water
b. algae growth as a result of eutrophication
c. degraded quality of water for human and livestock consumption
d. improved water habitats for human recreation
Answer:
Answer D
Explanation:
improved water habitats for human recreation
Some astronomers work for consulting firms that provide expertise to government agencies. Which of the following explains why an astronomer would work as a consultant?
An astronomer would be able to focus on research alone.
An astronomer would not have to obtain a national security clearance.
An astronomer would apply expertise to improve satellite designs.
An astronomer can make more money working as a consultant.
Answer: An astronomer would apply expertise to improve satellite designs
The one that explains why an astronomer would work as a consultant is an astronomer would apply expertise to improve satellite designs. The correct option is c.
Who is an astronaut?An astronaut is a person who works in the areas of space. They have knowledge of space equipment, and technologies.
A satellite is an instrument that revolves around the planets. There are natural satellites and artificial satellites. Natural satellites are the moon and artificial satellites are made by space design artists and all the activities are checked by astronauts.
A consultant is an assistant that works with an astronaut. They have expertise in technologies and assistance in the making of space equipment.
Therefore, the correct option is c. An astronomer would apply expertise to improve satellite designs.
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_______ species are the first species to colonies disturbed or newly created environment
What is the role of photosynthesis and cellular respiration in the cycling of matter and the flow of energy through the ecosystem
Answer:Cellular respiration in plants and animals involve chemical reactions with oxygen that release stored energy. ... Plants, algae, and many microorganisms use the energy from light, carbon dioxide from the atmosphere, and water to make sugars (food) through the process of photosynthesis, which also releases oxygen.
Explanation:
hope it helps :)
The role of photosynthesis and cellular respiration in the cycling of matter and the flow of energy through the ecosystem is the following:
The fundamental energy source of all ecosystems is the Sun, which sends a large amount of energy to Earth in the form of light and heat.
The various green plants use energy from the sun, water and nutrients from the soil, and carbon dioxide from the air to produce organic matter.
The process by which light is used as an energy source to transform CO2 into organic compounds essential for life is called photosynthesis.
The manufactured organic matter is used by the photosynthetic organisms themselves for the maintenance of their vital processes through cellular respiration.
Energy, once solar energy is transformed by producers into chemical energy by making organic matter in photosynthesis, is transmitted along with matter.
In each transfer of energy, between the different types of organisms there is a release of energy to the environment, in the form of heat.
On the contrary, matter flows cyclically, chemical elements are transferred between living beings and in the physical environment of each ecosystem.
Therefore, we can conclude that the role of photosynthesis in the cycling of matter and the flow of energy through the ecosystem is to produce the transformation not only of inorganic into organic matter, but also of light energy into chemical binding energy, oxygen is released as a waste product and is used by most organisms for cellular respiration.
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i need help with this,
it’s for biology
Explanation:
this is your answer
I hope it is clear
Answer: This is the REAL answer smh
Explanation:
PLEASE HELP URGENT
You want to survey members of your class to calculate the average amount of water they drink on a daily basis. Which of the following units would be most appropriate to use in your calculations?
A. microliters
B. micrograms
C. liters
D. kilograms
Answer:
I would say liters
Explanation:
Because D and B are units of weight and A is extremely small for the amoutn of water you drink.