Chemistry Middle School

What is the percent of iron (Fe) in 325g of FeCl3

Answers

Answer 1

Answer:

Element Symbol Mass Percent

Chlorine Cl 65.571%

Iron Fe 34.429%

Explanation:

Related Questions

please only answer if you are 100% sure it's a major grade.
.
35 POINTS

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The answer is B. Changes in air pressure and temperature. The changes in air temperature are often influenced by the increase in altitude, where the increase in altitude leads to a decrease in temperature, the same is true for the opposite!

Answer:

Explanation:

since the farther you go out in the atmosphere the temperature decrease and the air pressure drops

I just need help all I need is the answer please some one

Answers

Answer: The correct fill-in-the-blank answers are:

1. through binary fission (already filled in)

2. be resistant to penicillin

3. through asexual reproduction.

4. cell replicates before

5. a simpler process

Explanation:

The correct fill-in-the-blank answers are:

1. Bacteria reproduce through binary fission (already filled in)

2. A parent bacterial cell is able to survive in the presence of antibiotic penicillin. Subsequent generations from this parent will be resistant to penicillin

3. Something that potatoes and bacteria have in common is that they both reproduce through asexual reproduction.

4. In asexual reproduction DNA from the parent cell replicates before it produces daughter cells.

5. Asexual reproduction is a simpler process than sexual reproduction.

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Can you help me please

Answers

Answer:

Explanation:

DDDDD

When we rewrite the given in a simpler unit we have 7.9 ms-1.

What is dimensional analysis of formulas?

By looking at the units of the quantities involved, dimensional analysis is a technique for determining whether a physical equation or formula is right. The essential tenet of dimensional analysis is that the quantities being multiplied or divided in the equation must have units that are equal to the units of the final result.

We know that we have to apply the principles that apply to dimensional analysis in the question and we have that;

m^2.s/m.s^2

= ms-1

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Please Help me (I'll give brainlest) (LIMITED)

Answers

the answer to this is C. a crab is living and rock is nonliving..

Answer:

C. a crab finding a new home between rocks in a tidepool.

Explanation:

A. Small fishes are living organisms, and seaweed is also a living organism.

B. A tiny fish is a living organism, and plants are also living organisms.

C. A crab is a living organism, while a rock is a non-living thing.

D. Both rocks and sand are non-living things.

Therefore, our final answer would be C.

Hope this helps!

Although Leonardo Da Vinci was well-known for being an artist, how has he contributed to the fields of motion and medicine?

Thx if you help :D

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Leonardo da Vinci was a very talented artist who painted the Mona Lisa, the Last Supper, and many more famous paintings. These works were famous because of Leonardo’s understanding Linear Perspective, his integration of light and shadow, and his superb understanding of anatomy.

Leonardo Da Vinci attempted to create the first airplane, made the first accurate image of the human spine, etc.

Before motorized vehicles were invented, what was one of the fastest ways to travel?
idrk why but its for my sci class

Answers

Answer:

horse and cart ig lol

Explanation:

char

They used Trains or horses

In an electrical wire, if instead of copper, plastic wire is used. Would it conduct electricity?Justify your answer.

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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.

No it would not conduct electricity as it is a insulator

Coefficient -
Subscript for K-
3) 4K CO
Subscript for C
Subscript for 0 -

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Explanation:

....... ¿Qué?

Answer:

Explanation:

THERE IS ONE OF EACH

It takes a car 1.5 hours to go 90 miles.

What is the average speed of the car in miles per hour (mph).

Answers

Answer:

60 mph

Explanation:

if you do 90÷1.5 you get 60 so thats the average speed

so what you have to do is multiply but one more thing to help you remember is ask for help

Which of the following was a major focus of the Mississippian belief system?

physical connection
an anointed leader
a single deity
spiritual connection

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Answer:

i think answer is spiritual connection

spiritual connection

PLS HELP ME
ALSO THE LAST ONE IS STATE THE TREND IN DESNITY SHOWN IN TABLE

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Take a better photo I really don’t understand the assignment

Photo not clear. Take another one

Describe how the Rube Goldberg device design that you created follows the law of conservation of energy. Be sure to include both parts of the law of conservation of energy in your description.

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Rube Goldberg machines follows law of conservation of energy. In this machine when marble rolls down from top it has kinetic energy.

In this machine, a various instant kinetic energy is transferred into potential energy and vice-versa , so the total energy remain conserved. Thus Rube Goldberg machines follows law of conservation of energy. In this machine when marble rolls down from top it has kinetic energy.

Why many cell organelles contain folded or stacked membranes

Answers

Answer:

The many folds result in more surface area for ribosomes to attach and thus allowing protein synthesis to occur at a more efficient rate.

Explanation:

As a cell grows, its volume increases more quickly than its surface area. If a cell was to get very large, the small surface area would not allow enough nutrients to enter the cell quickly enough for the cell's needs.These folds increase the surface area available for transport of materials into or out of the cell.

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:

What does it mean when something asks to put a proposed hypothesis?

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Answer: A proposed hypothesis is based of the scientific method, so when you are asked to put a proposed hypothesis its asking to make a prediction based on any questions, and resources you have.

Explation: Hoped it helped

A proposed hypothesis is what you believe will happen durring an experiment BEFORE you do it based on research and data.
Ex:
I Think the balloon will pop when stabbed with the dart when it is thrown because it has more force. I also think the balloon won’t pop when the dart is dropped, as it will bounce because of material

make it look messy

Weather refers to short term atmospheric conditions while climate is the weather of a specific region averaged over a long period of time.

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Weater go short term conditish when climate is weather kf tegion

i hope that’s messy enough???

What is NOT true about genes and chromosomes?

Genese are located on chromosomes

Chromosomes are in the nucleus

A single chromosome can contain hundreds of genes

All of these are true

Answers

Let us go option by option :

1) Genes are located in chromosomes. TRUE

Chromosomes are in cell nucleus. A chromosome contains hundreds and thousands of genes. A normal have 23 pairs of chromosomes, and a total of 46.

2) Chromosomes are the in nucleus.

TRUE

Chromosome is structure found in nucleus of the cell. It is made up of protein and DNA.

3) A single Chromosome can contain hundreds of genes.

TRUE

single Chromosome can contain hundreds of tgenes.

4) All of the above

TRUE

As all the statements above are true. The correct option is 4.

Answer:

all of them are true

Explanation:

this is because chromosomes contain genetic materials and it is present in the nucleus.
Therefore, the correct option is 4) all of these are true

no problem

Calculate the volume (in cm3
) of 54 g
of water at 1 ∘C
.
Express the volume in cubic centimeters to two significant figures.

Answers

157,464 I think this is the answer

since the density of water is 1, then 1g = 1cm^3. So the volume of 54g of water is 54cm^3 with 2 significant figures

Explain the Law of conservation of energy in your own words and give an example.

Answers

The law of conservation of nevertheless states that the energy input of a system must be the same as the energy output of a system. For example, a television must input and output the same amount of energy (joules).

A student predicts that a solution of ethanol (C2H5OH) and water will have a lower density at room temperature than that of pure water. Which tools would most help the student test this prediction?
Will give brainly

Answers

It could probably be something that could take moisture to test it

A student predicts that a solution of ethanol (C2H5OH) and water will have a lower density at room temperature than that of pure water. By taking moisture the student can test this prediction.

What are the properties of ethanol ?

Ethanol is a natural plant fermented by-product which can also be produced by the process of hydration of ethylene.

It is an important industrial reagent, can be used as a solvent, for the synthesis of solvent, organic chemicals and some additive to automotive gasoline.

Its chemical formula is C2H6O, two carbon atoms and one oxygen atom where as the structural formula is C2H5OH indicating that the two-carbon chain has a hydroxyl group.

Ethanol is always a liquid at room temperature and has the melting point of 156K and a boiling point of 351 K.

It is used in making many medicines like cough syrups, tonics, any proportion of ethanol is soluble in water.

Direct consumption of even a small quantity of pure ethanol is lethal to body.

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Which of these is a chemical property of aluminum?

Aluminum has a density of 2.70 g · cm−3
Aluminum is silvery white in color.
Aluminum is highly reactive.
Aluminum is a soft metal.

Answers

Aluminium is a soft metal

The chemical property of aluminum is its highly reactive the rest of the options are physical properties

7: How many times can a volcano erupt?

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Answer:

Some small volcanoes only erupt once in their lives,

while other volcanoes erupt multiple times. Kilaeua volcano in Hawaii, which has been erupting continuously since 1983, is the world's most active volcano. While some volcanoes erupt at regular intervals, there are always exceptions to the rule

Answer:

small volcano's only 1 time while big volcano's mutiple times

Explanation:

If the temperature of the Earth's layers increases by about 90 degrees Fahrenheit for every 1 mile from the surface and you are estimating the temperature of a point in the mantle 160 miles below the surface, how hot would the mantle be at that depth?
A. 12,800°F
B. 14,400°F
C. 1.78°F
D. 160°F

Answers

Answer:

Temperature Range:

On average, the surface of the Earth's crust experiences temperatures of about 14°C. However, the hottest temperature ever recorded was 70.7°C (159°F), which was taken in the Lut Desert of Iran as part of a global temperature survey conducted by scientists at NASA's Earth Observatory.

Explanation:

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D is the answer hopefully this helped

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Answers

Answer:

the answer is C hope I helped

Answer:

Explanation:

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.

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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.

Leaf: Hey Roots, it's Leaf here. I'm noticing that I'm running a bit low on supplies to perform photosynthesis. Can we set up a delivery of water and nutrients?

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!

Name and Title:

Include your name, instructor's name, date, and name of lab.

Objectives(s):

In your own words, what is the purpose of this lab?

Hypothesis:

In this section, please include the predictions you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.

Procedure:

The materials and procedures are listed in your virtual lab. You do not need to repeat them here. However, you should note if you experienced any errors or other factors that might affect your outcome. Using your summary questions at the end of your virtual lab activity, please clearly define the dependent and independent variables of the experiment.

Data:

Record the elements present in each unknown astronomical object. Be sure to indicate “yes” or “no” for each element.

Hydrogen Helium Lithium Sodium Carbon Nitrogen
Moon One

Moon Two

Planet One

Planet Two

Conclusion:

Your conclusion will include a summary of the lab results and an interpretation of the results. Please answer all questions in complete sentences using your own words.

Using two to three sentences, summarize what you investigated and observed in this lab.
Astronomers use a wide variety of technology to explore space and the electromagnetic spectrum; why do you believe it is essential to use many types of equipment when studying space?
If carbon was the most common element found in the moons and planets, what element is missing that would make them similar to Earth? Explain why. (Hint: Think about the carbon cycle.)
We know that the electromagnetic spectrum uses wavelengths and frequencies to determine a lot about outer space. How does it help us find out the make-up of stars?
Why might it be useful to determine the elements that a planet or moon is made up of?

Answers

this seems like a class project

i support that frfr

Which element is represented by this model?

Be; Beryllium
N; Nitrogen
C; Carbon
F: Fluorine

Answers

Answer: C; Carbon

Explanation: The model is showing it has 6 electrons, 6 protons, and 6 neutrons. Therefore the element, carbon.

Answer:

Carbon

Ok it needs more characters

As the of the force of the shot increased, ___ ?
the puck traveled ?
This is because a force leads to a bigger change in an object's motion ___ ?
Friction had the effect on the puck's movement ?
as the friction force increased, the puck traveled ?
This is because friction works in the direction as an object is moving ?

Answers

It will go fast and fast because force on a object makes it go faster but as soon as not more force is being applied be begans to slow down

Methane (CH4) combines with oxygen gas (O2) to form carbon dioxide (CO2) and water (H2O). Describe the number and type of atoms for a molecule of each substance.
HELP (thanks if you give a good/correct answer)

Answers

Answer:

A molecule of methane (CH4) contains 1 carbon atom and 4 hydrogen atoms. A molecule of oxygen gas (O2) contains 2 oxygen atoms. A molecule of carbon dioxide (CO2) contains 1 carbon atom and 2 oxygen atoms. A molecule of water (H2O) contains 2 hydrogen atoms and 1 oxygen atom.

Match the term to its definition (Lessons 6.03, 6.04 and 6.05)
(i can't fit this all without confusion)

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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.

Other Questions

Having in-person interaction with my instructors and fellow students is: a. not particularly required for my academic success b. somewhat important to my academic success c. very important to my academic success What are the stages of alcohol poisoning (in other words, what could happen to your body from a less severe state to a more severe state). Naturalization means individuals clearly see identities as social constructions and produced by groups, rather than internal natural characteristics.TrueFalse You have borrowed $20,000 at a compound annual interest rate of 12%. You feel that you will be able to make annual payments of $4,000 per year on your loan. How long will it be before the loan is entirely paid off? 8.09 years 9.92 years 5.00 years Never Earl E. Bird has decided to start saving for his retirement. Beginning on his twenty-first birthday, Earl plans to invest $3,000 each birthday into a saving investment earning a 5% compound annual rate of interest. He will continue this savings program for a total of 10 years and then stop making payments. But his savings will continue to compound at 5% for 35 more years, until Earl retires at age 65. How much will Earl's savings programs be worth at the retirement age of 65 ? $208,139.55 $235,094.57 $165,480.46 $442,537.30 If demand is P = 20 - Qp and supply is P = 2 + 2Qs, what is the Producer Surplus? Enter as a value. revision of a completed and approved budget: a) should be conducted whenever actual events differ significantly from those envisioned when the budget was prepared. b) reduces employee commitment to achieve budgeted performance. c) should be discouraged. d) may discourage diligence in its initial preparation. e) is never needed under kaizen budgeting. 4a. a rectangular block of mass m has dimensions as shown. in terms of m, a, b and c, find the rotational inertia of the block about an axis of rotation through one of the corners of the block which is perpendicular to the large faces. Find the area of each figure. Round to the hundredths where necessary. 11 in 7 in 8.1 in 15 in find the . missing length indicated .... 1. Using Boolean algebra, prove that manipulation: \[ \bar{A} B+\bar{B} \bar{C}+A B+\bar{B} C=1 \] 2. Determine, if the recurrently defined sequence has a limit. What is the limit? (a) a1 = 0 and an+1 = An + }(x an)2 for 0 5x51 +1 < < ) ai (b) Q1 = 1 and an+1 = {(an + ) = (c) a1 = c and an+1 = {(an + ), for c (0,00) an an find the value of " m " of which5^m5-=5^5 while working with a cable and connector, you discover that the connector is keyed. this means that the connector __?__. y= 4x 9y= x - 3Dnnsbdbdbdbdbdbdbdbbdbdbdbdbdbdbdbdbdbdbbdbdbdbbdbbdbdbbdbdbdbbbd Which of the answers below is NOT one of the reasons that small businesses often outsource project work? a. Insufficient resources b. Working capital issues What is Pericles's point of view about participation indemocracy?O He thinks democracy should expand who canparticipate.O He thinks democracy creates different classes ofpeople.O He thinks democracy allows people in poverty toparticipate in government.He thinks democracy prevents some people frombeing able to participate. National Income Accounts (dollar figures are in billions)Expenditures for consumer goods and services$ 8,800Exports$ 3,500Government purchases of goods and services$ 2,000Social Security taxes$ 1,900Net investment$ 4,100Indirect business taxes$ 1,100Imports$ 3,800Gross investment$ 5,100Corporate income taxes$ 2,300Personal income taxes$ 1,300Corporate retained earnings$ 700Net foreign factor income$ 1,100Government transfer payments to households$ 1,200Net interest payments to households$ 800(Table 5.4) The country's personal saving is (Total Marks -1 CLO #02 &03 1. Design a counter to produce the following binary sequence. Use J-K flip-flops. 1, 4, 3, 5, 7, 6, 2, 1, ... a reduction in tax rates may result in individuals working more and an increase in real gdp. a tax cut evaluated using ___ would predict greater costs than ___. please help! im giving brainlist!