Please help I’m marking a branliest answer ☹️☹️☹️☹️☹️☹️

Please Help Im Marking A Branliest Answer

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Answer 1
The answer would be C

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Please help!
Fe2O3 + C → CO + Fe

Answers

Fe2O3 + 3C → 2Fe + 3CO :)

How do you figure out molality

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*The molality of a solution is calculated by taking the moles of solute and dividing by
the kilograms of solvent* Basically if we had 1.00 mole of sucrose (it's about 342 3 grams) and
proceeded to mix it into exactly 1.00 liter water. It would dissolve and make sugar
water. We keep adding water, dissolving and stirring until all the solid was gone. We
then made sure everything was well-mixed.
What would be the molality of this solution? Notice that my one liter of water weighs
1000 grams (density of water = 1.00 g / mL and 1000 mL of water in a liter).

how does sulfur bond with chlorine

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Sulfur and chlorine are both on the "right side" of the periodic chart. Therefore they are both nonmetals. Nonmetals will react with each other and form covalent bonds.

What is the position of the earth, moon, and sun during a new moon?

Answers

Answer:

In the case of a New Moon, the Moon is between Earth and the Sun, so the side of the Moon facing the Sun isn't facing us. We can't see any portion of the lit-up Moon during this phase. (When the Sun and Moon exactly line up, as viewed from Earth, we get a special experience known as a solar eclipse

Explanation:

good luck hope this helps

Which statement correctly describes a reaction in dynamic equilibrium?
o At dynamic equilibrium, the reactions stop and the amounts of reactants and products do not change.
o At dynamic equilibrium, the reactions continue but the amounts of reactants and products do not change.
o At dynamic equilibrium, the reactions stop but the amounts of reactants and products are changing.
o At dynamic equilibrium, the reactions continue and the amounts of reactants and products are changing.

Answers

Answer:

"At dynamic equilibrium the reactions continue but the amounts of reactants and products do not change." would be the correct description

Explanation:

Dynamic equilibrium occurs when the rates of change and concentration are the same, so the reaction still takes place, but the amounts of reactants and products stay the same without any change.

According to chemical equilibrium, the statement which correctly describes dynamic equilibrium is that at  dynamic equilibrium, the reactions continue but the amounts of reactants and products do not change.

What is chemical equilibrium?

Chemical equilibrium is defined as the condition which arises during the course of a reversible chemical reaction with no net change in amount of reactants and products.A reversible chemical reaction is the one wherein the products as soon as they are formed react together to produce back the reactants.

At equilibrium, the two opposing reactions which take place take place at equal rates and there is no net change in amount of the substances which are involved in the chemical reaction.At equilibrium, the reaction is considered to be complete . Conditions which are required for equilibrium are given by quantitative formulation.

Factors which affect chemical equilibrium are change in concentration , change in pressure and temperature and presence of catalyst.

Learn more about chemical equilibrium,here:

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What is the mass of an object that has a volume of 12cm3 and a density of 1.5g/cm3

Answers

Answer:

18g

Explanation:

D=m/v

D= Density (g/mL) OR (g/cm^3)

m= mass (g)

v= volume (mL)

Use the Desity formula to find the mass by rearranging the formula so that m = D*v

Simply multiply the density by the volume

1.5*12 =18g

because it is the mass you’re looking for.

is NO2 an ionic or covalent bond? Will give brainliest for the correct answer​

Answers

Answer:

Covalent

Explanation:

hi, How are you?

NO2 is already polar, due to the fact that nitrogen shares a maximum of 3 electrons. Thus N makes two covalent bonds with one oxygen, one covalent and one dative with the other. And there's still a free electron left that causes the molecule to bend, forming an angle, and so the NO2 molecule is polar with an angle other than 180.

2. Barium compounds are chemically very similar to strontium compounds. Water-soluble
compounds of both are toxic, but to different degrees. An antidote for barium chloride
poisoning is to orally administer 30 grams of sodium sulfate in 250 mL of water. Explain the
chemical basis for this antidote.

Answers

The ability of sodium sulfate to act as an antidote to barium chloride poisoning is because displaces barium in barium chloride to form sodium chloride and insoluble harmless barium sulfate.

Why is a solution of sodium sulfate used as an antidote?

The ability of sodium sulfate to act as an antidote to barium chloride poisoning is because of the reactivity of sodium.

Sodium is a more reactive metal than barium, so it displaces barium in barium chloride to form sodium chloride and insoluble harmless barium sulfate.

The equation of the reaction is given below:

BaCl2 + Na2SO4 ----> BaSO4 + NaCl

Therefore, the ability of sodium sulfate to act as an antidote to barium chloride poisoning is because displaces barium in barium chloride to form sodium chloride and insoluble harmless barium sulfate.

Learn more about about reactivity of metals at: https://brainly.com/question/24866635

There are different kinds of poisonings.  Sodium sulfate are known to be an effective antidote because they create or produce a kind of precipitate with barium that is said to be not easily absorbed from the gastrointestinal tract.

There have been a lot of Cases of barium poisoning that are known to be followed by high hypokalemia.

Soluble sulfates such as  sodium sulfate and others such as potassium infusion are known to be a key antidote.

If given promptly and in the right dosage, soluble sulfates are known to be an effective antidote.

Learn more about barium from

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why are atoms so picky on who they bond with

Answers

Explanation:

Atoms are not really picky. They actually bond with other atoms to form an octect state. Let's take an example of an atom with, say, 2 valence electrons. This atom will have to bond with an atom which has 6 valence electrons to reach its octect state (6 + 2 = 8 =》 octect state is from L shell and above).

Hope it helps ⚜

Is Sodium bicarbonate (NaHCO3) held together through ionic or covalent bonds? Explain your reasoning.​

Answers

Answer:

No

Explanation:

No

Sodium bicarbonate is an Ionic compound.

Sodium bicarbonate, also known as baking soda, is considered an ionic compound, not a covalent compound.

The Haber-Bosch process operates at reaction pressures of 200.0
atm and higher. What is this pressure in psi? fill in the blank

Answers

Haber - Bosch process, method of directly synthesizing ammonia from hydrogen... The reaction is carried out at pressure ranging from 200 to 400 atmosphere's

sana maka tulong ❣️

When 3 moles of nitrogen monoxide are formed, how many moles of oxygen reacted?
4 NH3(g) + 5O2 (g) 4 NO (g) + 6 H2O (1)
->

Answers

Answer:

3.75

Explanation:

it's gonna be a decimal number,cus from the formula 5moles produce 4moles of NO

so if 3 moles we're to be produced,it will be 3x5 divide by 4

Suppose that a person eats a diet of 2398 Calories per day.

Convert this energy into joules.
Convert this energy into kilojoules.
Convert this energy into kilowatt-hours.

Answers

Answer:

10,033,232 joules

10,033.232 kilojoules

2.78837209 kilowatt-hours

Explanation:

2398 * 4184 =

2398 * 4.184 =

2398 / 860 =

Aspirin, C9H8O4, slowly decomposes at room temperature by reacting with water in the atmosphere to produce acetic acid, HC2H3O2, and 2-hydroxybenzoic acid, C7H6O3 (this is why old bottles of aspirin often smell like vinegar):

Answers

Based on the chemical reactivity, the decomposition of aspirin in the presence of water produces acetic acid and 2-hydroxybenzoic acid.

What is a decomposition reaction?

A decomposition reaction is a reaction in which a large substance is broken down into smaller substances.

Example of a decomposition reaction is the decomposition of aspirin to produce acetic acid.

Aspirin (C9H8O4) slowly decomposes at room temperature by reacting with water in the atmosphere to produce acetic acid, HC2H3O2, and 2-hydroxybenzoic acid, C7H6O3.

The equation of the reaction is given below:

C9H8O4 + H2O -----> HC2H3O2 + C7H6O3

Therefore, the decomposition of aspirin produces acetic acid and 2-hydroxybenzoic acid.

Learn more about decomposition reactions at: https://brainly.com/question/24749229

A method of calculating the amounts of reactants needed to produce desired amounts of products is called

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Stoichiometry. Stoichiometry is the field of chemistry that is concerned with the relative quantities of reactants and products in chemical reactions. For any balanced chemical reaction, whole numbers (coefficients) are used to show the quantities (generally in moles) of both the reactants and products.

Are oceans like giant swimming pools are they connected

Answers

Answer and Explanation:

Oceans are like giant swimming pools for marine life. Not really for people though. One difference that most swimming pools tend to have chlorine in them. If not, then they have salt water similar to an ocean. The chemical substance chlorine is not good for marine life at all, and isn't really good for people either.

But instead of chlorine, oceans have types of bacteria that aren't good for people either, especially if ingested in high amounts. So, if you've ever accidentally swallowed sea water and felt a little sick to your stomach, this could be why. They are similar though because they both have water and a form of bacteria.

They are not connected in a way of cycling water with each-other, but they do have similarities and differences as I had mentioned before.

Let me know if you have any more questions about this topic, I hope that this helps.

Yes they are but not for humans just animals like fishes!

How many kilocalories of heat are needed to melt 65.0 g of ice at 0 °C?

Answers

Answer:

21.7 kj

Explanation:

The heat required to change the phase of a matter is calculated by using the latent heat formula, Q=ML, where M is the mass released or absorbed during the phase change and L is the latent heat of a material. Since ice is melted into water, this process is technically called the heat of endorthermic phase change that is Q_in=ml

The latent heat of water is 334 kg/kj. In order to melt 65. 0g of ice Q=0.065 x 334kj/kg =21.71 of heat required

A bike moves with a speed of 40 km/h for 1 h and then with a speed of 60 km/h for the next 2 h. What is the total distance covered by the bike during the complete journey?​

Answers

Answer:

40×1=40

60×2=120

40+120=160

A chemist prepares a solution of iron(II) bromide (FeBr2) by measuring out 46. g of iron(II) bromide into a 400. mL volumetric flask
and filling the flask to the mark with water.
Calculate the concentration in mol/L of the chemist's iron(II) bromide solution. Round your answer to 2 significant digits.

Answers

Solution

Given mass of FeBr2 = 85.5 g

Molar mass of FeBr2 = 215.65

No. of Moles of FeBr2 = Given Mass / Molar mass = 85.5 / 215.65

No. of Moles = 0.3964

Given Volume is 450 mL i.e. 0.450 L

Now Concentration = 0.3964/0.450

Hence Concentration = 0.881 mol/L

Need Help ASAP Please! The Answer Needs To Be Numerical

A student ran the following reaction in the laboratory at 546 K:

COCl2 (g) CO (g) + Cl2 (g)

When she introduced 0.723 moles of COCl2 (g) into a 1.00 liter container, she found the equilibrium concentration of Cl2 (g) to be 3.38×10-2 M.

Calculate the equilibrium constant, Kc, she obtained for this reaction.

Kc =

Answers

This problem is providing an equilirium reaction with the initial concentration of COCl2 and the equilibrium concentration of Cl2 for us to calculate the equilibrium constant. At the end, the result is 0.00166.

Chemical equilibrium

In chemistry, not all chemical reactions turn out into completion yet reach a point of constant concentrations (conversion) called equilibrium. In such a way, since this problem is based on this phenomenom, we can start by setting up the equilibrium expression:

[tex]Kc=\frac{[CO][Cl_2]}{[COCl_2]}[/tex]

Where each concentration is at equilibrium. Now, since all these species are in 1:1 mole ratio, we can see that the cocentration that changed up to equilibrium is 3.38×10⁻² M (Cl2's concentration), and thus we can calculate Kc with:

[tex]Kc=\frac{(3.38x10^{-2}M)(3.38x10^{-2}M)}{(0.723M-3.38x10^{-2}M)}\\\\Kc=0.00166[/tex]

Learn more about chemical equilibrium: https://brainly.com/question/26453983

which of the following elements is the most reactive between boron, sulfur, and chlorine

Answers

Answer:

Chlorine would be the answer

Explanation:

If a water fountain has an average flow rate of 0.64 gallons per minute, how many
seconds does it take to dispense 842.75 mL. (Hint: 3.78541 L = 1 gal, 60 s = 1 min)

Answers

The time taken for the water fountain to dispense 842.75 mL of water is 20.625 seconds

What is time?

Time can be defined as the measure of past, present or future events.

To calculate the time taken to dispense 842.75 mL of water, we use the formula below.

Formula:

F = V/t................ Equation 1

Where:

F  = Average flow rate of the fountainV = Volume of the watert = time.

Make t the subject of the equation.

t = V/F................ Equation 2

From the question,

Given:

F = 0.64 gallons per minutesV = 842.75 mL = (842.75/1000)/(3.78541) gal = 0.22 gal.

Substitute these values into equation 2

t = 0.22/0.64t =  0.34375 minutes.t = (0.34375×60) =  20.625 seconds.

Hence, The time taken for the water fountain to dispense 842.75 mL of water, is 20.625 seconds.

Learn more about time here: https://brainly.com/question/13893070

Calculate the number of atoms in a 3.31 x 10 g sample of lithium.
g

Answers

Explanation:

atomic mass of Li = 7 amu

so we know that there are about (33.1)/7 = 0.47 mol

Multiply this by 6.02 * 10^23 particles per mol, and we get about 2.83 * 10^23 particles

the mass of one mole of sulfur is

Answers

64.066 g/mol is the weight

Please please helppp

Answers

Answer:

is that geography because that is my favourite subject... I can help

HELP PLEASE :D

(science)



For the first drop down its: Friction,gravity, normal force,push


Thanks ​

Answers

[tex]\bold{Heya~!}[/tex]

For the first drop down.

Your answer will be is :

C. Normal force.

And, the second drop down.

Your answer will be is :

B. The puck will move off in a different direction.

Hope It Helps ! ~

#LearnWithBrainly

[tex]\underline{Answer~:}[/tex]

Jace ~

Fe2+(s) + Cr6+(aq) → Fe3+(aq) + Cr3+(aq)
Which element is being reduced?_______
Which element is being oxidized?_______
Which reactant is the reducing agent?_______
Which reactant is the oxidizing agent?_______

Answers

Explanation:

A. Cr reduced

B. Fe oxidized

C. Fe reducing agent

D. Cr oxidizing agent

[tex]ok \: here \: is \: your \: answer \: [/tex]

1) Cr is being reduced.

2) Fe is being oxidized.

3) Fe is the reducing agent.

4) Cr is the oxidizing agent.

will mark as brainliest if correct

Answers

Answer:

A) The bonds of the reactants must be broken

D) The bonds of the products must  be formed

E) Breaking bonds require an input of energy

H) Forming bonds releases energy

These are all the 4 correct statements

Explanation:

Breaking bonds is an ENDOTHERMIC process, meaning that it takes in energy to break the bonds of the reactants.

Forming bonds is an EXOTHERMIC process, meaning that it takes in energy to break the bonds of the reactants.

Two escalators move people up and down between floors of a shopping mall at the same rate, either up or down. What of the following statements regarding the motion of escalators is true?​

Answers

Answer:

Velocity can vary when speed is constant

Describe the relationship between the mole and molar mass. Be prepared to describe the process for converting between moles and molar mass.

Answers

Answer:

The molar mass of any substance is the mass in grams of one mole of representative particles of that substance. ... In such a conversion, we use the molar mass of a substance as a conversion factor to convert mole units into mass units (or, conversely, mass units into mole units).

Explanation:

Answer:

conversion factor to convert mole units into mass units

Explanation:

thats the answer, ur welcome!!!!

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