How much of this reactant should he order to make
sure he runs out of both reactants at the same
time? Round to the nearest hundredth and do not
round any of your work until the very end.
g of the limiting
He should uder
reactant.

Answers

Answer 1

Answer:

the answer is Fe2O3

Explanation:

The thermite reaction is described by the equation below: A welder has ... How much of this reactant should he order to make sure he runs out of both reactants at the same time? Round to the nearest hundredth and do not round any of your work until the very end. He should order Fe2O3 g of the limiting reactant.

Answer 2

Answer:

92.41g

Explanation:


Related Questions

What specifically do vaccines contain which cause your body to become
immune to specific pathogens? *

Answers

certain molecules from the pathogen must be introduced into the body to trigger an immune response. These molecules are called antigens, and they are present on all viruses and bacteria.

Answer:

I'm not entirely sure, but I've heard that vaccines contain very weak amounts of the virus in order to expose your body to it, so that your body can become immune to it before being exposed to the real thing.

So basically, a flu shot contains a weak version of influenza.

I don't know this for sure, but hopefully this helps!

A boy jumps into a cold swimming pool and his body temperature goes down. His muscles, blood vessels, and nervous system work together to restore his body temperature. These responses allow the body to maintain--- Select one: stress balance work structure

Answers

Answer:

balance

Explanation:

a. What is the mass in grams of 4.2 mols of FeO2?​

Answers

4.2 Mols FeO2 * 71.844g/1mol = 301.74g FeO2

According to mole concept, there are 368.928 g  mass in 4.2 moles of FeO₂.

What is a mole?

Mole is defined as the unit of amount of substance . It is the quantity measure of amount of substance of how many elementary particles are present in a given substance.

It is defined as exactly 6.022×10²³ elementary entities. The elementary entity can be a molecule, atom ion depending on the type of substance. Amount of elementary entities in a mole is called as Avogadro's number.

It is widely used in chemistry as a suitable way for expressing amounts of reactants and products.For the practical purposes, mass of one mole of compound in grams is approximately equal to mass of one molecule of compound measured in Daltons. Molar mass has units of gram per mole . In case of molecules, where molar mass  in grams present in one mole  of atoms is its atomic mass.

Number of moles=mass/molar mass

Thus, mass=4.2×87.84=368.928 g.

Thus, there are 368.928 g  mass in 4.2 moles of FeO₂.

Learn more about moles,here:

https://brainly.com/question/26416088

#SPJ2

Which of the following compounds contains covalent bonds? *

Cs₂O
Fe₂O₃
NaCl
CCl₄

Answers

NaCI

Explanation:

I just worked this out the day before

An exothermic reaction releases 13,450J of heat. How many calories of energy are released? A) 5 56,274 calories B)1,244 caloriesC) 134,500 caloriesD) 3,215 calories

Answers

Answer:

The correct option is;

D) 3,215 calories

Explanation:

Here we are required to convert 13,450 J to calories

1 calorie is the amount of heat required to raise the temperature of 1 gram of water by 1°C

Therefore, 1 calorie = 4.184 Joules

Hence, 1 Joule = 1/4.184 calorie for which we have;

13,450 J = 13,450 × 1/4.184 calories = 13,450/4.184 calorie

13,450 J = 3,214.63 calories

Rounding up to the nearest  whole number, we have;

13,450 J ≈ 3,215 calories.

Relate dark matter to the development of the universe after the Big Bang. In 3-5 sentences, speculate on how the development of the universe would have been different if there had been no dark matter. In your answer, use the term structures.

Please answer if you do i will mark you as brainliest

Answers

Answer:

Without dark matter galaxies would loose an extreme amount of gas required to create stars.

Without dark matter the universe wont have as many galaxies clumped together forming larger versions of those galaxies. This would cause a change in the structure of the "skeleton" of the web.

(Hope this can help, I didn't do exactly as it is said to because that is your job)

:)

Explanation:

Forbes gives somewhat of an explanation if you are curious.

(Ethan Siegal, "The Universe Would Be Very Different Without Dark Matter", Forbes)

Dark matter makes up most of matter in the universe and is found by a quarter of the total composition of the space. After the event of the big bang, the universe expanded and dark matter grew.

Dark matter accounts for about 85% of the matter in the universe. Its presence can be felt in the gravitational effects. Dark matter doesn't interact with the electromagnetic field. After the big bang event, the dark matter still can be found in larger galaxies and contest about 26% of mass-energy and 69% of dark energy. If there had been no dark matter there would be no structure of the cosmic web of galaxies. That is there would be no connection between the galaxies and would remain in isolated fragments.

Thus dark matter is a link within and with the comic web.

Learn more about the dark matter and its development-related after the big bang event

brainly.com/question/16725768.

What element is in group 17 and period 3 of the periodic table?

Answers

Answer:

Chlorine is the element located in period 3, group 17 of the periodic table.

Explanation:

Answer: Chlorine

Explanation:

PLEASE HELP I WILL GIVE BRAINLEST! what is life about?

Answers

Answer:

To live for God.

Explanation:

We are Gods creation. We are here to live for the Lord, to do love& to help save each other so when time comes we will be forever blessed.

Answer:

life is about life I think

60.0 g of NH Cl are dissolved in 100 grams of water at 60.0° C. This solution is
A
supersaturated
B
saturated
С
unsaturated
D
none of the above

Answers

Answer:

B) is the correct answer

What is the oxidation state of Fe(s)

Answers

The  oxidation state is zero for Fe (s)

Which of the following is most likely a homogeneous mixture?
O A. A tossed vegetable salad
B. Chunky peanut butter
O C. Chocolate chip cookies
OD. A vanilla milkshake

Answers

Answer:

D)A vanilla milkshake

Explanation:

D) A vanilla milkshake.

That’s the case because you can’t physically separate the different posts that make up the mixture.

How did Robert Goddard contribute to space exploration?
He was the first person in space.
He was the first person to walk on the moon.
He was the first person to use liquid fuel for rockets.
He designed and built the first space station.

Answers

Answer:

He was the first person to use liquid fuel for rockets.

A chemist needs 2.00 liters of hydrochloric acid. How many pints is this?

Answers

Is that supposed to say 200/2.00??

Answer:

4.22675

Explanation:

The _____ of a weak acid is strong.

a. conjugate acid
b. conjugate base
c. acid
d. base

Answers

Answer: conjugate base

Explanation:

According to the Bronsted-Lowry conjugate acid-base theory, an acid is defined as a substance which looses donates protons and thus forming conjugate base and a base is defined as a substance which accepts protons and thus forming conjugate acid.

A weak acid has a strong conjugate base whereas a strong acid has a weak conjugate base. Similarly a weak base has a strong conjugate acid whereas a strong base has a weak conjugate acid.

[tex]CH_3COOH+NH_3\rightarrow CH_3COO^-+NH_4^+[/tex]

Acetic acid [tex]CH_3COOH[/tex] is weak acid which has strong conjugate base [tex]CH_3COO^-[/tex]

What is a conductor
When electrons move easily though objects
When electrons cannot move easily through objects
When electrons are at rest

Answers

Hey there!

The answer would be A. When electrons. move easily through objects

In science, a conductor is a material that permits a flow of energy. A material that allows the flow of charged particles is an electrical conductor. A material that enables the transfer of thermal energy is a thermal conductor or heat conductor.

Hope this helps !

Why do the atoms in a molecule want to be so far apart? (Mention Electron domains/Electrons)

Answers

Answer:

Because like chargee repel, two molecules will resist being brought close together.

Explanation:

The shorter the distance is between them, the more energy it takes to push them to get even closer. If the molecules approach each other with sufficient energy, however, they may exchange atoms or even form a bond( chemical reaction)

What is the molariity of a 50.0 mL aqueous solution containing 10.0 grams of hydrogen peroxide, H2O2?

Answers

Answer:

6 mol/L

Explanation:

You should know or have the equation to solve for Molarity which is;

M = n/v          (M: Molarity) (n: moles of solute) (v: Liters of solute)

You can start off differently but I would start by converting the mL to L. This is your "v" value.

50.0 mL/ 1000 mL = 0.05 L

Now, you have to convert grams to moles in order to solve for molarity (M).

1.) On the periodic table find the molecular weights of H and O.

H= 1.01 g/mol         O= 16.00 g/mol

2.) Multiply them and then add them together to have their combined molecular weights. (You have to multiply by 2 because of their equation; H2O2).

2(1.01) + 2(16.00)= 34.02 g/mol

3.) Now, you're going to use the "picket fence method" or whichever your teacher taught you to convert from grams to moles. This will be your "n" value. (I cannot show it on here without it looking weird, so my sincere apologies.)

10.0 g/ 34.02 g = 0.2939 mol

4.)You are now going to plug in your answers into the equation for Molarity.

M= 0.2939 mol / 0.05 L = 5.878 mol/L

5.) I am sure your professor might be a stickler so for sig figs sake when you multiply or divide use the smallest amount of sig figs you see which is 1. Round 5.878 to 6 mol/L

Sorry this explanation is very long let me know if you need a better more written out explanation.

How do you convert kilometers to grams

Answers

By multiplying the mass value by 1000.

Answer:

Hey!

What you have to do is to multiply the amount of mass  * i.e. 67.9g * by 1000 * 67,900kg! *

Explanation:

HOPE THIS HELPS!

which is correct? not sure which is right

Answers

Answer:

butane

Explanation:

If a gas occupies 22.4 L at 0.265 atm, then what will the pressure be in atmospheres if the gas occupies 35.52 L? Assume all other
variables are held constant
A)0.167 atm
B)0.437 atm
C)0.886 atm
D)149 atm

Answers

Answer:

The new pressure is 0.167 atm

The correct answer is option A

Explanation:

Step 1: Data given

Volume of the gas = 22.4 L

Pressure of the gas = 0.265 atm

The volume increases to 35.52 L

Step 2: Calculate the new pressure

P1*V1 = P2*V2

⇒with P1 = the initial pressure = 0.265 atm

⇒with V1 = the initial volume = 22.4 L

⇒with P2 = the new pressure = TO BE DETERMINED

⇒with V2 = the increased volume = 35.52 L

0.265 atm * 22.4 L = P2 * 35.52 L

P2 = (0.265 atm * 22.4 L) / 35.52 L

P2 = 0.167 atm

The new pressure is 0.167 atm

The correct answer is option A

The two products that are formed when a solution of HNO3 and a solution of NaOH react are water and?

NaNO2

NaNO3

NaHNO

NaHNO3

Answers

Answer:

NaNO3

Explanation:

Hello,

In this case, the required reaction is an acid-base neutralization reaction which is said to be:

[tex]HNO_3+NaOH\rightarrow NaNO_3+H_2O[/tex]

There, we see that the sodium displaced the hydrogen in the nitric acid to form sodium nitrate a very used salt in the industry, so, as a result of that displacement, water is formed as the secondary neutralization product. For the above mentioned, answer is NaNO3 .

Best regards.

Answer: NaNO3

Explanation:

A salt sodium nitrate (NaNO3) is formed alongside water (H2O) when HNO3 and a solution of NaOH undergoes a neutralization reaction.

HNO3 + NaOH -------->  NaNO3   + H2O

PLEEASE HELP TIMED WILL GIVE BRAINLIEST TO CORRECT ANSWER NLY PLEASEEEE HELPPPP

Answers

Answer:

1) 1.15 mol

2) M=0.45

3) 22.5 mL

4) 6.25 mL

Explanation:

1)

550 mL= 0.55 L

M= mol solute/ L solution

mol solute= M * L solution

mol solute= (2.1 M * 0.55 L )        M=1.15 mol solute

2)

155 mL = 0.155 L

80 g  -> 1 mol NH4NO3

5.61 g -> x

x= (5.61 g * 1 mol NH4NO3)/80 g       x= 0.07 mol NH4NO3

M=(0.07 mol NH4NO3)/0.155 L         M=0.45

3) M1V1=M2V2

V1= M2V2/M1

V1= (0.500 M * 0.225 L)/5.00 M             V1=0.0225 L =22.5 mL

4) M1V1=M2V2

V1= M2V2/M1

V1= (0.25 M * 0.45 L)/ 18.0 M

V1=6.25 x 10^-3 L = 6.25 mL

Answer:

?

Explanation:

pls help Photosynthesis is used to produce food for plants in the form of glucose. In the process, oxygen is released. As shown in the diagram, plants require water and carbon dioxide (from the air). What else is required for photosynthesis and what role does it play? A) Light is required to provide energy for photosynthesis. B) ATP is required as an energy source for photosynthesis. C) Glucose is required as an energy source for photosynthesis D) Oxygen is required to split water molecules in photosynthesis.

Answers

Answer:

A) light is required

Explanation:

ATP, Glucose, and oxygen are created from the process

How could you test each molecule to
determine if it was DNA or RNA?

Answers

Answer:

Nucleobases should be checked. RNA contains adenine, guanine, cytosine and uracil instead of thymine, so if we isolate uracil, it means that it is RNA, if not, then is DNA.

bases have a pH of

a. more than 7
b. less than 7
c. 7

Answers

Answer:

Bases are more then 7

acids are less then 7 neutral is 7 and bases are more than

Answer:

A. More than 7

Explanation:

ph scale, bases are to the right

Question 3 of 10

5 Points

Match the approximate percentage of the world's water to where it is stored.

Salt water

97 percent

Ice caps and

glaciers

2 percent

Fresh liquid

water

1 percent

Answers

Answer:

salt water 97%

fresh water 1%

frozen 2%

Explanation:

How many copper atoms are in 70 grams of copper

Answers

1.10156422119408 moles

Which is a property of every heterogeneous mixture?

The mixture is made up of at least two different states.
The mixture is made up of something dissolved in a liquid.
The composition of the mixture is the same throughout.
The characteristics of the mixture change within a sample.

Answers

Answer:

D.) The characteristics of the mixture change within a sample

Explanation:

Because the guy above me is wrong

Answer:

D.) The characteristics of the mixture change within a sample.

Explanation:

HTH!! Have a good day!!! Don't forget to smile!!!!

Which of the following statements is true?

Sound vibrations are changed into electrical impulses by the eardrum.
It is dangerous to listen to sounds over 160 dBs.
High-pitched sounds have low frequencies.
All of the above.

Answers

Ya I don’t know I will try because plus is 8 is none one i I k will send

Answer:

all of the above!! :)))

Explanation:

After constructing the circuit, Aliyah and Jeremy noticed that the light bulb stays on all the time. This means the batteries will get used up when the flashlight does not need to be on. What is something Aliyah and Jeremy can do to solve this problem?

Answers

Answer: Implement a switch

Explanation:

This forms a circuit break or way to easily turn the flow of electricity on or off.

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