4 Fe + 6 H₂O + 3 O₂ → 4 Fe(OH)₃


Police found 10 grams of Fe(OH)₃ on the knife. Convert grams of rust (Fe(OH)₃) into grams of iron (Fe) to see if the knife contained enough to murder the butler.



345 g Fe



5.22 g Fe



7.34 g Fe



2.95 g Fe

Answers

Answer 1
Someone answer my question please I need help hurry

Related Questions

Which nitrogen base sequence is the partner of C-A-T-C-G-A?

Answers

Answer:

G-T-A-G-C-T

this is the answer

G T A G C T is correct. An analogy I used to rmbr this more clearly and off by heart was “The apples (A) in the trees (T) and the cows (C) in the garage (G)”.

When two nitrogen atoms bond together, they form the diatomic molecule N2. Which
type of bond does N2 have?
covalent
ionic
O metallic
O semimetal
ASAP QUICK

Answers

convalent

Explanation:

I hope its helps u

covalent





i’m trying my hardest to remember

where is kuiper belt located​

Answers

Answer:

On the out side of the solar system near Neptune

Explanation:

I did this lesson on Edge and that is what it said

Read this passage about Christopher Reeve.

Christopher Reeve was born on September 25, 1952, in New York City. His mother was a journalist, and his father was a professor. As a kid he played sports, did well in school, and liked acting. His passion for acting goes back to playing with his brother when they were little. Reeve acted in his first play at the age of nine. After attending college, taking acting classes, and acting in many plays and movies, Reeve landed his biggest role. In 1978, he played the title role in Superman. He received very positive reviews for his performance and starred as Superman in all the sequels. Reeve was soon acting as the lead role in dozens of movies after Superman. Once well-known, Reeve used his celebrity status for good causes, such as visiting very sick children through the Make-A-Wish foundation. He was also a track and field coach at the Special Olympics.

Besides acting, Reeve was also a licensed pilot and liked horseback riding. He learned to ride horses for a movie role, and he continued riding in his free time. Unfortunately, while riding one day in 1995, Reeve fell from his horse and became paralyzed from the neck down. Being confined to a wheelchair did not hold back Reeve from being socially active, and after many surgeries and rehabilitation, he decided to dedicate his life to helping people with spinal-cord injuries. He created the Christopher Reeve Foundation, which supports the improvement of the lives of people with disabilities and helps fund research to find a cure for paralysis. He was also politically active, working with senators to make sure that people with disabilities were treated fairly in the workplace. Reeve received many awards for his dedication to public service. He also wrote two books about his experiences, and a documentary was made about his life. Reeve passed away in 2004, but his legacy lives on today. He touched the lives of many people and showed us what it means to overcome extreme odds by never giving up.

Based on this passage, Reeve best fits in the yearbook category

“Most Likely to Take Risks.”
“Most Likely to Help Others.”
“Most Likely to Run for President.”
“Most Likely to Be a Musician.”

PLEASE HURRY ONLY 10 MINUTES LEFT

Answers

MOST LIKELY TO TAKE RISKS .

Answer:

"most likely to help others"

Explanation:

thank u hope it helps u

How does Earth's rotation affect ocean currents?

Lesson 2.09

Question 9 options:

It causes them to flow in a curved path


It has no affect


It causes them to flow from east to west


It causes them to flow from north to south

Answers

Answer:

Our planet's rotation produces a force on all bodies moving relative to theEarth. ... The force, called the "Coriolis effect," causes the direction of winds and ocean currents to be deflected.

Explanation:

Earth's rotation affect ocean currents because: A. It causes them to flow in a curved path.

What is Earth rotation?

Earth rotation can be defined as the amount of time that is taken by planet Earth to complete its spinning movement about an orbital axis.

This ultimately implies that, Earth rotation refers to the time taken by earth to rotate once on its axis. Also, a spinning movement of the Earth on its axis takes approximately 24 hours to complete with respect to the Sun and it result in an effect called Coriolis.

In conclusion, Earth's rotation affect ocean currents because it causes them to flow in a curved path due to Coriolis effect.

Read more on Coriolis effect here: https://brainly.com/question/22699603

When iron (iii) oxide, Fe2O3, and aluminum are heated together at a high temperature, iron (Fe) and aluminum oxide (Al2O3) is formed
1.What is the meaning of the symbol (iii) in iron (iii) oxide?

2.Write a balanced equation for this reaction

Answers

The three percenters, also styled 3 percenters, 3%ers and III%ers are American and Canadian far-right anti-government.

Energy of vibrating particles is....
electrical energy

thermal energy

sound energy

mechanical energy

Answers

your answer would be sound energy

Explanation:

my brain

Explain the trend in boiling points as you move down group v11

Answers

Answer:

Fluorine    

Chlorine

Bromine

Iodine

Boiling point increases as you go down the group v11

Explanation:

The elements of Group VII  are the halogens consisting of f fluorine (F), chlorine (Cl), bromine (Br), iodine (I).  All of which are non metals and exists  as diatomic molecules - F2, Cl2, Br2, I2 with  intermolecular attractions between the two molecules of each element held by Van der Waals dispersion force.

Moving down the group, the size of the atoms increases in size from Fluorine, F2 and Chlorine, Cl2 which are gases to Bromine , Br2 which exists as a liquid to solid, Iodine, I2. This attributes to the increasing in Strength of the Van der Waals forces as you go down the group. In order to break the vanderwaals forces , More heat energy is required to change thier states  leading to the increase in  boiling point going down the group.

Fluorine    

Chlorine

Bromine

Iodine

Boiling point increases as you go down the group

6. Un átomo de sodio tiene 11 protones, 12 neutrones y 11 electrones, a) ¿cuál es la masa en gramos de este átomo de sodio? b) Si este átomo de sodio pierde un electrón para quedar cargado positivamente (Na+1) ¿Cuál es su nueva masa? ¿cuánto cambió en porcentaje con respecto a la masa original (la del literal a))? c) Si todos los átomos de sodio fueran iguales ¿cuántos átomos de sodio hay en un miligramo?

Answers

Answer:

a. 3.851301x10⁻²³g

b. La masa del Na⁺ es 3.85121x10⁻²³g y 0.002% es el cambio percentual.

c. 2.6x10¹⁹ átomos hay presentes.

Explanation:

a. La masa de un electrón es 9.1x10⁻²⁸g

La de un protón es 1.673x10⁻²⁴g

La de un neutrón es 1.675x10⁻²⁴g

La masa del átomo de sodio es:

11*1.673x10⁻²⁴g + 12*1.675x10⁻²⁴g + 11*9.1x10⁻²⁸g =

3.851301x10⁻²³g

b) Ahora, con 10 electrones la masa es:

11*1.673x10⁻²⁴g + 12*1.675x10⁻²⁴g + 10*9.1x10⁻²⁸g =

3.85121x10⁻²³g

El cambio percentual es:

3.851301x10⁻²³g - 3.85121x10⁻²³ / 3.851301x10⁻²³ * 100 =

0.002% es el cambio percentual.

c. 1 átomo de sodio pesa 3.851301x10⁻²³g, 1mg = 1x10⁻³g tendrán:

1x10⁻³g * (1 átomo / 3.851301x10⁻²³g) =

2.6x10¹⁹ átomos hay presentes

A student mixes strawberry koolaid and water. A pH meter is used to measure pH of 5.4. What kind of solution is strawberry Koolaid?

Answers

Answer:

Slightly Acidic

Explanation:

Slightly acidic ph is 5.0-5.5

How many grams of silver are present in 15.0 g of silver sulfate?

Answers

Answer:

4676.985 .  grams of silver present in 15.0g of silver sulfate              

What 3 things drive the pressure of a gas up

Answers

Answer:

Density of the Gas

Explanation:

More molecules mean more hits against the container walls. Increasing the number of particles means you have increased the density of the gas. This third factor is part of the ideal gas law, which explains how these three factors -- temperature, volume and density -- interact with each other.

What is the mass of 3.00x10^23 particles of water? Water has a molar mass of 18.0 g/mol.

Answers

Answer:

8.97 g H₂O

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Chemistry

Atomic Structure

Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Stoichiometry

Using Dimensional AnalysisExplanation:

Step 1: Define

3.00 × 10²³ particles H₂O

Step 2: Identify Conversions

Avogadro's Number

[Given] Molar Mass of H₂O - 18.0 g/mol

Step 3: Convert

Set up:                              [tex]\displaystyle 3.00 \cdot 10^{23} \ particles \ H_2O(\frac{1 \ mol \ H_2O}{6.022 \cdot 10^{23} \ particles \ H_2O})(\frac{18.0 \ g \ H_2O}{1 \ mol \ H_2O})[/tex]Multiply/Divide:                                                                                               [tex]\displaystyle 8.96712 \ g \ H_2O[/tex]

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

8.96712 g H₂O ≈ 8.97 g H₂O

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A student added some sugar to a glass of water, but it did not dissolve quickly. What could the student do to increase the rate at which the sugar dissolves in the water? *


Freeze the water

Heat the water

Filter the water

Add salt to the water

Answers

The answer is to heat the water up to increase the rate that which it dissolves

Answer:

Heat the water up!!

Explanation:

I'm hoping this is right? I'm pretty sure it is! Hope you get it right.

What other substance (besides salt) could you sprinkle over ice to affect how fast it melts? Describe how you would test the substance's impact on the melting time of ice. Predict the results of such a test.

Answers

Answer:

See explanation

Explanation:

Salt makes ice to melt faster than it usual. Sugar is another substance that influences the melting time of ice.

If i have a sample of pure ice and another sample of ice treated with sugar. I have to maintain the both initially at 0 degrees temperature and have a stop clock to measure the melting time.

I will ultimately notice that the sample of ice treated with sugar will melt faster than the pure sample of ice due to the presence of an impurity.

How can a chemical reaction be sped up?

Answers

By mixing the chemicals.

Answer:

A chemical reaction can be sped up by many factors. Add a catalyst (A substance that reduces activation energy, speeding up the reaction) Increase the concentration of reactants. Increase the concentration of catalysts.

The charge of the atom is _______ because there are ______ numbers of and______ in an atom.

Answers

Answer:

see below

Explanation:

the charge of the atom is neutral because there are equal numbers of protons and electrons in an atom.

hope this helps

please mark

HELP . which kind of tides causes the highest and lowest tides ?

Answers

Answer: spring tides
When earth, moon, and sun line up cause high and low tides :)

50 pts! Please help, much appreciated (:

2. Consider the table of boiling points and structural isomers. Note that butane has two possible isomers but that decane has 75 possible isomers. Why does the number of possible isomers go up with an increasing number of carbon atoms?

Answers

Answer:

because the number of constitutional confirmation , and geometric isomers goes up with each carbon atom added there are many more possible configurations and connectivities possible with decane , a 10 carbon chain , than with butane, a 4 carbon chain

"The number of possible isomers go up with an increasing number of carbon atoms because as the number of carbon atoms increases the tendency to form branching with other carbon atom increases as well."

What is isomer?

Isomers are molecules or polyatomic ions that have the same molecular formulas that is, the identical number of atoms of each element but different atomic configurations in space. Isomerism refers to the existence or potential of isomers. Isomers don't have to have the same chemical or physical properties.

To know more about isomer click here.

https://brainly.com/question/23248623.

#SPJ2

what is the density of a small block of wood with a mass of 35g and a volume of 70 cm3

Help plz

Answers

Answer:

The density of the wood is 0.5 g/cm³

Explanation:

To calculate density you need to use the formula D = M/V

D = Density

M = Mass (in grams)

V = Volume (in cm³ for solids and mL for liquids)

So, just plug in your given values: D = 35 g ÷ 70 cm³ = 0.5 g/cm³

Voila, you just calculated the density of that piece of wood!

Consider the following reaction:
A + B C + D + heat

If this reaction is first allowed to reach equilibrium, the concentration of substance D will be further increased by then (choose one best answer)

(A) removing some A.
(B) removing some B.
(C) removing some C.
(D) heating the reaction
(E) none of the above

Answers

Do you know why I think c it’s because b and c are combined so removing part of c is ok

what is the relationship between nitrogen and carbon-14?

Answers

Answer:

The relationship between carbon-14 and nitrogen is that carbon-14 forms from nitrogen atoms and eventual decays into atoms of nitrogen-14.

Explanation:

The relationship between carbon-14 and nitrogen is that carbon-14 forms from nitrogen atoms and eventual decays into atoms of nitrogen-14.

Since carbon-14 contains an unstable nucleus that decays radioactively over time, it is a radioactive isotope of carbon. The atomic nucleus of this substance, which goes by the symbol "C-14," consists of six protons and eight neutrons. On Earth, carbon-12 (C-12), an atom with six protons and six neutrons, makes up the vast bulk of the carbon.

In the high atmosphere of the planet, a nuclear process known as cosmic ray spallation produces carbon-14. High-energy cosmic rays hit with nitrogen-14 (N-14) atoms in the atmosphere, with the majority of these collisions coming from the Sun and other space-based sources.

To know more about carbon-14, here:

https://brainly.com/question/30233846

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The process plants use to make sugar for food

Answers

Answer:

PHOTOSYNTHESIS!

Explanation:

i miss flirting at school, can anyone help ;)

Answers

Answer:

Don't worry school's will re-open in August 2021. ._.

Explanation:

i think everyone does. so i'll help you

How does energy play a role in different rock types forming? I had this question another time in my test and it's asking the same thing again.

Answers

Answer:

Yes

Explanation:

Yes, there are many energy forces that directly affect the formation of rocks and other substances. The Sun itself provides both energies in the form of heat/radiation and magnetic energy. Heat can get so intense when combined with pressure from being so far underground that it causes rocks to melt and become magma, which combines with other minerals and forms new types of rocks when they cool in the future. Magnetic energy helps push and pull the waves and wind on Earth which ultimately break down rocks into sand over the years.

When liquid water evaporates to gaseous water
1)the water releases energy to the surroundings.
2)particles of hydrogen and oxygen recombine to form H20.
3)the water particles are arranged in an orderly pattern.
4)the water absorbs energy from the surroundings.

Answers

Answer: liquid water 2

Explanation:

I don't understand this problem
?Mg+?N2=?Mg3N2​

Answers

Answer:

Magnesium nitride, which possesses the chemical formula Mg3N2, is an inorganic compound of magnesium and nitrogen. Moles H2O = 75.0 grams / 18.02 g/mol. This reaction is used to prove that air contains nitrogen gas. Which equation would have the same coefficients in the same order as 2CO2 + 3H20 → C2H6O + 3O2?

Explanation:

Hopefully this helps :)

Brainiest please I need 5 more

Answer:

yeah im only answering so she can get brainliest

Explanation:

pleaseeeeeeeeeeeeee please help
You have learned that the atomic number of a chemical is the number of protons found in the nucleus. Atomic numbers can be used to find the number of neutrons and electrons in an atom. In this project, you will practice atomic mass and atomic mass number calculation as well as fill out a chart using the periodic table. Don’t forget to read through the rubric below, so you will know what you will be graded on. When you are ready, upload it replacing the “Lastname” in the saved document name with your last name.
Part I:
The atomic number of the sodium atom is 11. The atomic mass number can be estimated by rounding the atomic mass to 23. From this information, you can find the number of neutrons: 11 protons plus how many neutrons equals a mass number of 23? The number of neutrons would have to be the difference between 23 and 11, which is 12. This fact can be restated this way: 11 protons plus 12 neutrons equals a mass number of 23. For every proton in the nucleus, an electron revolves around the nucleus. Since 11 protons are in sodium, 11 electrons must be in sodium.
Using this information and the Periodic Table from lesson titled Periodic Table fill in the chart below.

Element Atomic Number Atomic Mass How many neutrons? How many electrons? How many protons?
Sodium 11 23 12 11 11
Chlorine
Carbon
Lead
Iron
Magnesium
Uranium
Cobalt
Calcium
Platinum
Phosphorus

Answers

Answer:

Chlorine - 17,35.45,18,17,17

Carbon - 6, 12.01,6, 6,6

Lead - 82, 207.2,125,82,82

Iron - 26, 55.847, 30, 26,26

Magnesium - 12, 24.305, 12,12,12

Uranium - 92, 238.09, 146,92,92

Cobalt - 27, 58.933,32, 27,27

Calcium - 20, 40.078, 20,20,20

Platinum - 78, 195.078,117, 78,78

Phosphorus - 15, 30.974, 16, 15,15

Explanation: https://hobart.k12.in.us/ksms/PeriodicTable/abc.htm

HELP MEEEEEE PLEASEEEEE WILL OFFER BRAINLIEST

Answers

Answer:

1.This answer would be option A.

2. I think that would be 1350

Explanation:

Suggest 2 ways that chemical pollutants could be carried far from their sources?

Answers

Answer:

1.Transport through surface water

2.Transprt through soil

Explanation:

I learned it from my 7th- grade science teacher and suprisingly I still t it. Hope this helps.

Other Questions
which point is located at (6,1) A E H or B? 1) How is unit rate related to slope or rise over run? Five, six, seven, eightDance with me in my backyard, boyLooking super fine in your corduroyDrive me 'round the blockWe can go in a loopAnd we'll turn the volume up on someGood boy band tunesI can feel the fresh airI can feel your eyes stareAnd I'm not gonna lieI get a little bit scaredMy heart is on wingsI'm living in dreamsAnd at the top of our lungs, we singDa da da da da daDa da da da da daEverything is perfectDa da da da da daDa da da da da daAll our words were worth itDa da da da da daDa da da da da daDancing around like a clown at the circusDa da da da da daDa da da da da daBackyard boy, you make me nervousDance with me in my backyard, boyLooking super fine in your corduroy (five, six, seven, eight)Roll the windows downLet the baseSEARCH UP BACKYARD BOY BETCHA YOULL LOVE IT When 27 times x squared times z all over negative 3 times x squared times z to the fourth power is completely simplified, the exponent on the variable z is _____. Numerical Answers Expected! I have attached a picture of the problem so it's easier to read. pls help its a two part question: Draft your advertisement using the images and text you created in the previous tasks. Select a font that is attractive, unusual, or bold. Make the text colorful and use different sizes. Your title text should grab your readers attention. Submit your completed advertisement to your teacher along with this activity.part two:With advertisements there is always the possibility that someone might challenge your claims. They might report you as advertising false information. So, you need to be prepared to defend your advertisement when the need arises. Write a paragraph defending your ad. Your paragraph should support the arguments made in your advertisement with strong evidence from reliable sources. How old am I if, eighty reduced by 2 times my age is fifty-six (HELP PLEASE - URGENT) The elevation of a sea animalis -20 meters.Choose all elevations that are greater than the elevation of the sea animal.A. 5 metersB. -16 metersC-40 metersD. O metersE.-22 meters Whats a example or sentence for stanzas? 4 points9. Name the scientists that played a major role in the development of cell theory. * EquationNumber of Solutions6(2.1 + 1) - 2 = 12.1 + 4How many solutions does it have? what's the subject and verbs in i have purchased a new watercolor by a western artist. find the largest number that can divide 135 and 183 and 375 leaving the Sameremainder 15 in each case. what make it animal or plant cell? Which sentence currently disqualifies Annie from becoming a US citizen?Annie turned 28 years old last September. She has been residing in the United States for seven consecutive years. She also possesses a good and righteous moral character. She cant speak or write English, but shes very skilled in French. helo i have until tomorrow to finish it Help plzzz I dont get to Question 1(Multiple Choice Worth 4 points)(05.07 LC)A scatter plot is made to model the number of calories in different portions of fish sticks. The data used for the scatter plot are shown in the table:Number of portions 5 3 8 6 1 4Number of calories 250 150 400 300 50 200What does the slope of the model represent? The number of calories in each portion of fish sticks The number of fish sticks in each portion The original number of portions of fish sticks The price of each portion of fish sticks Penny is training for a race. First she ran 1/10 of a mile4 times. Next she ran 1/5 of a mile 3 times. Then she ran 3/10 of a mile two times. How far did Penny runduring her training?Show your work. Find the equation of the line with gradient 3 passing through point (2,5) Learning Task 1: Search for 14 words in the puzzle to know the elements andprinciples of arts. You may look on your previous lesson on page 11. Writeyour answer on your notebook.