Answers
Answer:
22.6881 Grams of CO
Explanation:
Fe2O3 + 3CO = 3CO2 + 2Fe
Ratio
1:3 = 3:2
How many grams of CO are needed to produce 30.2 grams of Fe
Fe2O3 Molar mass: 159.69 g/mol
CO Molar mass: 28.01 g/mol
Fe Atomic mass: 55.845
Ok so our end result is 30.2 Grams of Fe, we have 2 Fe so we have 15.1 Grams per Fe
15.1/55.845 = 0.27
So then we multiply this by 3 as we we know the ratio and get get 0.81 required as this is 3CO.
So we need 0.81 Moles of CO so we need 22.6881 Grams of CO.
Related Questions
A warm front is heading toward Chicago. Which type of weather would one expect when it arrives?
a. warm and rainy
b. warm and sunny
c. cold and dry
d. cold and rainy
Answers
but if there is a cold front already in chicago and they collide it would be
a. warm and rainy
Answer:
warm and rainy
Explanation:
because we expect a warm and rainy weather when the warm front is approaching
baking soda and vinegar come together to form new substances. what are these new substances called? *
A reactants
B compounds
C products
D chemical bonds
Answers
Answer:
Answer:C. Products
Explanation:
baking soda and vinegar are the reactants and when reactants are mixed to form new substances then they are called Products.
e.g: baking soda and vinegar are mixed together to form carbonic acid. In this chemical reaction reactants are baking soda and vinegar, Product is carbonic acid which is also known as Carbon dioxide gas.
Imagine that you are a leaf on a plant, and you realize that you are running low on supplies to do your job. You decide to text the roots to set up a delivery. Write a text message conversation between the leaf and the roots that discusses and arranges this delivery.
Answers
Answer:
Leaf: Hey Roots, this is Leaf. I'm running low on supplies here. Can you send some over?
Roots: Hey Leaf, of course. What kind of supplies do you need?
Leaf: I need more water and nutrients. Can you send some my way?
Roots: Sure thing, we'll get on it right away. How much do you need?
Leaf: Just enough to keep me going for a few more days. Can you also send some sunlight my way?
Roots: Sorry, we can't help with that one. But we'll make sure to send enough water and nutrients to help you out.
Leaf: Thanks, Roots. You're the best. Let me know when the delivery is on its way.
Roots: Will do, Leaf. Hang in there. Delivery should be there soon.
Roots: Hi Leaf! Of course, we're here to help. Sorry to hear you're running low. We'll get right on it. How much water and which specific nutrients do you need?
Hope it helps! :)
Leaf: Thanks, Roots! I'll need a good soak of water, and I could use some extra nitrogen and potassium for optimal photosynthesis. Can you also throw in some magnesium?
Roots: Noted, Leaf. Water, nitrogen, potassium, and magnesium coming right up! We'll absorb them from the soil and deliver them through the xylem. Just hang in there!
Leaf: Awesome, Roots! Your support is much appreciated. Let's make sure this delivery boosts my chlorophyll production so I can keep producing energy for the whole plant.
Roots: Absolutely, Leaf! We're here to keep the whole plant thriving. Your health is our priority. We'll work together to ensure you have everything you need for top-notch photosynthesis.
Leaf: Thanks for being the best roots a leaf could ask for! Can't wait to feel rejuvenated and get back to making food for the plant.
Roots: You're welcome, Leaf! We're all part of the same team. Stay patient, the delivery will be on its way soon. We'll keep you updated.
Leaf: Will do, Roots! Looking forward to the delivery. Keep up the great work down there!
Roots: Thanks, Leaf! We'll keep the nutrients flowing. Take care up there and keep shining!
Leaf: You too, Roots! Catch you later!
Roots: Until next time, Leaf! Stay green and healthy!
The acceleration of the car with the data in the table above would be m/s2. If the applied force were cut in half, what do you predict the acceleration would be? m/s2
Answers
Answer:
1. 0.33 2. 0.1 7
Explanation:
In a reaction of yeast and hydrogen peroxide, the yeast causes a reaction in which the hydrogen peroxide breaks apart to form oxygen gas and water. Heat is released (given off) in this experiment, which would indicate a(n) ____________________ reaction.
A) equilibrium
B) endothermic
C) physical reaction
D) exothermic
Answers
Answer:
D, exothermic reaction
Answer: it indicates exothermic reaction
Explanation:
How does weathering and erosion contribute to the cycling of earth's materials? (specifically rock/the geophere)
Answers
Answer:
Erosion breaks rocks down further and then moves them.
Match the term to its definition (Lessons 6.03, 6.04 and 6.05)
(i can't fit this all without confusion)
Answers
Answer: the first paragraph is rain forest biome and the 2nd one is arctic tundra biome and finally the last paragraph is ocean or marine biome
Explanation:
rain forests have warm temperatures and include alot of animals and plants , artctic tundra biome includes cold temperatures ice stuff and all that and ocean or marine biome is pretty much just the ocean with seals , whales and marine life yk.
Energy questions if you dk dont awnser
----------------
Energy transfer occurs when a warmer object is in contact with a cooler one.
----------------
Energy transfer when a electrical source is connected in a complete circuit to an electrical device.
----------------
Energy transfer can be transferred through matter or empty space via -
You can only choose the awnsers on the picture
Answers
Answer:
1: thermal
2:electrical
3:electromagnestic waves
IMPORTANT
climate change could cause floods and starvationin diffrent parts of the world
explain how the burning of fossil fuels causes climate change
Answers
Answer:
Image result for explain how the burning of fossil fuels causes climate change
When fossil fuels are burned, they release large amounts of carbon dioxide, a greenhouse gas, into the air. Greenhouse gases trap heat in our atmosphere, causing global warming.
Explanation:
Answer:
Correct answer: B). Global climate is changing due to burning of fossil fuels and deforestation.
Forest holds a large amount of carbon, plants are known to absorb carbon dioxide from the atmosphere as they grow, that carbon dioxide is stored in plants in the form of carbon in plant's roots, leaves and in the soil. When trees are cut down, that stored carbon is released in the environment in the form of carbon dioxide, which accounts for approximately 18% of global greenhouse gas emission.
The burning of fossil fuel like coal, petroleum, oil, gas for the energy purpose is one of the major contributors for the rising level of carbon dioxide in the atmosphere, which leads to global warming and affect the climate.
Hence, the correct answer would be option B.
Explanation:
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)
Choose the answer that best completes the sentence below. Cloud forests are home to unusual animals, _______ spectacled bears and barking deer.
A. previously
B. such as
C. as a result
D. third
Answers
B. Such as
This is because it is listing the animals> to the “unusual forest
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
Does visible light have a high or short wavelength
NO WEIRD LINKS
Answers
Answer:
The visible colors from shortest to longest wavelength are: violet, blue, green, yellow, orange, and red. Ultraviolet radiation has a shorter wavelength than the visible violet light.
Answer:
Short wavelength
Explanation:
How was Aristotle’s model similar to Ptolemy’s model?
Both models stated that the planets rotate on their axes.
Both models stated that Earth is the center of the system around which other objects orbit.
Both models stated that the planets and objects in the solar system have small orbits called epicycles.
Both models stated that the Sun is the center of the system around which objects have elliptical orbits.
Answers
Answer:
Correct answer is B
Explanation:
I listened in class peeps
Aristotle’s model was similar to Ptolemy’s model because they both believed that: (B). Both models stated that Earth is the center of the system around which other objects orbit.
Meaning of a modelA model can be defined as a three dimensional representation of an idea or theory or belief.
A model can also be said to be a representation of a philosophy or idea put up by an individual that can be used as an example.
In conclusion, Aristotle’s model was similar to Ptolemy’s model because they both believed that: (B). Both models stated that Earth is the center of the system around which other objects orbit.
Learn more about a model: https://brainly.com/question/17764105
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What are some of the possible solutions for solving air pollution issues?
Answers
Answer:
Conserve energy - at home, at work, everywhere.
Look for the ENERGY STAR label when buying home or office equipment.
Carpool, use public transportation, bike, or walk whenever possible.
Follow gasoline refueling instructions for efficient vapor recovery, being careful not to spill fuel and always tightening your gas cap securely.
Consider purchasing portable gasoline containers labeled “spill-proof,” where available.
Keep car, boat, and other engines properly tuned.
Be sure your tires are properly inflated.
Use environmentally safe paints and cleaning products whenever possible.
Mulch or compost leaves and yard waste.
Consider using gas logs instead of wood.
Explanation:
Answer:
Make more earth-friendly ways to create energy using natrual resorces instead of fossil fuels releases greenhouse gases into the atmosphere and that causes the levles of Co2 and other gasses.
Example: Solar Energy, Wind Energy, Hydropower, etc.
Explanation:
Help? Tysm if you do :>
Using the graph above, what was the cost of the most expensive invasive species?
200 billion US dollars
10 billions US dollars
148 billion US dollars
50 billion US dollars
Answers
I will mark brainlist for best awnser
Imagine that all the plants in a particular area died. Which best predicts what would happen to the animals in that area? Choose the prediction that best matches your thinking. (write a paragraph explaining why you chose that answer.)
A. The animals that eat plants would all die. The animals that eat only animals would live.
B. Some of the plant-eating animals would die. Other would live by switching to eat other animals.
C. All of the animals would eventually run out of food and die.
D. All of the animals would survive by eating other foods.
Explain why you selected the prediction.
Answers
Mark with crown please!
Human obtain electricity through fossil fuel, nuclear, solar, geothermal, wind, biomass, and hydroelectric power.
For at least two of these, explain ways that using this resource could pollute freshwater.
Answers
For fossil fuel: Oil spills and leaks during extraction or transport can pollute water sources.
For nuclear power: An uncontrolled nuclear reaction can result in widespread a contamination of water.
The process of determining relative age is called ____________.
Group of answer choices
relative dating
absolute dating
exact dating
rock
Answers
Answer:
-- I can't be too sure, but... --
Relative dating
Explanation:
Determination of the absolute age of rocks and minerals using certain radioactive isotopes.
Relative Age: The age of a rock layer compared to other layers. It can be determined by looking at the position of the rock layers.
Relative Dating: Rocks and structures are placed in order from the age of older to younger.
These two seem to be from the same section and they connect as well, so I believe "Relative Dating" is your answer but I could be wrong nevertheless I hope this helps you!
PLLLSSSS HELP I WILL GIVE BRAINLIEST
i dont need an explanation just the correct answer pls hurry I am dying
Answers
Answer:
option A, because Lithium and Chlorine both have their valency 1.
hope that helps...
Robert is thinking about buying a new refrigerator. His old refrigerator runs at about 43% efficiency. Which most likely accounts for the remaining 57% of the energy?
A: It is used up by the light in the refrigerator.
B: It is released to the surroundings as heat
C: It is converted into mechanical energy.
D: It stored as a form of potential energy.
Answers
Answer:
D it stores as a firm of potential energy
Is there a relationship between CO2 levels rising and heavy precipitation? If so, what is it?
Answers
Answer:
Explanation:
Yes, there is a relationship between rising CO2 levels and heavy precipitation. As the concentration of CO2 in the atmosphere increases, it leads to a warming of the Earth's surface due to the greenhouse effect. This warming, in turn, causes an increase in the rate of evaporation of water from the Earth's surface, including from the oceans, lakes, and rivers.
This increased evaporation results in more water vapor in the atmosphere, which can lead to heavier precipitation events, including more frequent and intense rainstorms, snowstorms, and other forms of precipitation. This is because warmer air can hold more moisture, making it more likely to produce heavy rainfall.
In addition, the warming of the Earth's surface can also lead to changes in atmospheric circulation patterns, which can further increase the likelihood of heavy precipitation events in some regions.
Overall, the relationship between rising CO2 levels and heavy precipitation is complex and can vary depending on the specific location and other environmental factors. However, there is evidence to suggest that as global temperatures continue to rise due to rising CO2 levels, heavy precipitation events are likely to become more frequent and intense in many parts of the world.
Answer: Yes there is a direct relationship between CO2 and heavy precipitation. Rising in CO2 means increasing the temperature in the atmosphere which causes more water vapor evaporates into the atmosphere and which causes high rainfall or precipitation.
Explanation: Increased atmospheric CO2 levels are causing plant stomata to close, allowing plants to hold more water in their stems, reducing transpiration, and possibly impacting tropical rainfall patterns in varying ways depending on region.
please solve this for me
Answers
The standard reduction potential for the half-reaction of Be^2+ + 2e^- -> Be is given as E^0 = 3.83 V.
For the half-cell Hg^2+ | Hg, the standard reduction potential is not provided in the given information. To calculate the electric potential for the voltaic cell, we need the reduction potential for the Hg^2+ | Hg half-cell.
A voltaic cell, also known as a galvanic cell or an electrochemical cell, is an electrochemical device that generates electrical energy through a spontaneous chemical reaction. It consists of two half-cells connected by an external circuit and a salt bridge or porous barrier that allows the flow of ions between the two half-cells.
Each half-cell consists of an electrode immersed in an electrolyte solution. The electrode is typically made of a metal or a conductive material, and the electrolyte is a solution containing ions that can participate in the redox (reduction-oxidation) reaction.
Learn more about electrochemical cell on:
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Answer:
The standard reduction potential for the half-reaction of Be^2+ + 2e^- -> Be is given as E^0 = 3.83 V.For the half-cell Hg^2+ | Hg, the standard reduction potential is not provided in the given information. To calculate the electric potential for the voltaic cell, we need the reduction potential for the Hg^2+ | Hg half-cell.
What type of person studies and collects data on the weather?
Answers
Please draw a diagram of how a magnetic field works around a magnet. Please label.
Answers
Mark me Brainly
In what type of reaction is a C=C or C≡C bond created?
Answers
Answer:
A carbon–carbon bond is a covalent bond between two carbon atoms.
Explanation:
Hello <3 I just need some help with periodic table of elements.
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What is the element's name and symbol? Sodium
Is it a metal, nonmetal, or metalloid?
Which family does it belong to?
How many protons, neutrons, and electrons does its neutral atom have?
Please help with the non-answered ones, following sodium please ^^
Answers
Answer:
11
Explanation:
An atomic number of 11 means this atom will have 11 protons. A mass number of 23 means 23 - 11 this atom will have 12 neutrons. Since this atom is neutral the positive protons must be equal to the negative electrons. This atom will have 11 electrons
Answer:
Sodium: Na
It is a metal
It's family is Alkali metals
Its atomic number is 11
It has 12 neutrons, 11 protons, 11 electrons
Rosa eats a peanut butter sandwich for lunch. Peanut butter contains a lot of protein, and bread is mostly starch. Rosa plans to go for a run later this afternoon. Rosa is breathing normally. How do Rosa’s body systems work together to get the molecules she needs into her cells? (Sentence starter: Rosa's body systems work together by...
Answers
Answer: ... being that the food she eats food that contains a lot of protein and also starch, so systems are both good for you and work together. Chemical energy is stored in the bonds of sugars. When a sugar molecule is broken down, a usable form of energy is released for the cell's life functions. Cells can release energy in two basic processes: cellular respiration and fermentation. ... In cells use oxygen to release energy stored in sugars such as glucose.
Explanation:
Answer:
What does she need from the food she ate and the air she breathes so that she can go on her run?
A. Rosa needs carbohydrates rich food (bread) to carry out her jogging activity. Protein-rich food before exercise is not recommended unless she is on a weight loss program (diet plan).
B. Rosa needs oxygen to perform aerobic respiration, which is required for maximum release of energy (36 molecules per reaction run). Anaerobic reactions yield less energy (2 molecules of ATP per reaction run) and are not recommended.
How do Rosa's body systems work together to get the molecules she needs into her cells?
Rosa's body cells need carbohydrates (glucose) and oxygen to perform aerobic respiration for the release of maximum energy. The glucose and oxygen molecules are provided to the cells via diffusion into the bloodstream. During exercise/jogging, complex molecules of carbohydrates such as starch (present in bread) are broken down into simple molecules (glucose) which are diffused into the blood. Likewise, a high amount of oxygen is provided to the body's cells via diffusion in blood, which is carried out by the faster movement of lungs and heart. The combined action results in the supply of both types of molecules to enter the cell where mitochondria use these substrates to produce energy molecules (ATPs).
Explanation:
What are the first few items you should evaluate when reading a graph”?
Answers
Answer:
punctuation, and if it makes sense
Use the drop-down menus to identify each type of galaxy pictured.
Galaxy A:
Galaxy B:
Galaxy C:
Answers
Galaxy B: irregular
Galaxy C: spiral
Hope this can help