Convert 16.7 inches to yards (there are 3 feet in a yard)
Using the method of dimensional analysis

Answers

Answer 1

Answer:

Explanation:

16.7 inches [1 foot / 12 inches] [1 yard / 3 feet] Notice how the units cancel each other out. You do have numbers in the denominator. What you get, looks like this

16.7

------

(12 * 3)

16.7 / 36

0.4639 yrds


Related Questions

The table below gives the equilibrium concentrations for this reaction at a certain temperature : N2(g) + O2(g) 2NO(g) what is the equilibrium constant for the reaction?
A. 1 x 10-5
B. 7 x 10-3
C. 70
D. 100

Answers

D. 100 I hope this help :)

The equilibrium concentrations for the given reaction at a certain temperature will be 100.

What is equilibrium?

During a reversible chemical process, chemical equilibrium is the state where there would be no net change in the number of reactants as well as products.

What is the reaction?

The reaction is the process in which by the combination of more than one element new kind of element will be formed.

Given data:

The given reaction is [tex]N_{2} (g) + O_{2} (g)[/tex]  → [tex]2NO(g)[/tex]

The equilibrium constant (K) = [tex][NO]^{2} /[N_{2}][O_{2}][/tex]

Put the value of the given data in the above equation.

K =  [tex]=[0.002 M]^{2} / [0.65M][0.45M]\\=[4*10^{-6} ]/ [0.2950]\\= [4*10^{-6} ] / 2950*10^{-4}\\= 1.35 * 10^{-5}[/tex]

Therefore, the equilibrium constant will be 1.35 × [tex]10^{-5}[/tex]

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What makes a strong acid different from a weak acid?

Answers

Answer:

Strong acids react faster whereas weak acids take time to react with any base.

Strong acids are good conductors of electricity on contrary weak acids are not too good as conductors of electricity.

Strong acid passes electricity faster whereas weak acids are slow conductors.

Strong acids are not edible but weak acids are edible.

Strong acids have ph value ranging between 0 to 3 but the ph value of weak acids ranges between 5 to below 7.

Change the following word equation into balanced formula equation
Iron + cupric Oxide-----------Ferrous sulphate + Copper
help please

Answers

Answer:

Fe + CuO ----> FeO+ Cu

Explanation:

A word equation is a chemical equation in which the reactants and products are represented by words rather than the respective symbols of the species involved in the reaction.

Generally, when writing a balanced reaction equation, it is normal to ensure that the number of atoms of each element on the reactant side is the same as the number of atoms of the same element on the product side. This has been ensured in the reaction above.

The reaction above is possible because iron is higher than copper in the electrochemical series hence iron can displace copper from its compounds.

what is the molarity of HCL solution that has a density of 1.17g/ml at 25°?​

Answers

~Solution :-

Here, we have been given that;

$ \bf{1 ml}$ = 1.17 g$ \bf{1 l}$ = 1170 g

Hence, we can note that,

No. of moles of HCL (n) = $ \sf{\frac{1170}{36.5}}$

(n) = 32.05

[tex] \\ [/tex]

Thus,

Molarity = 32.05 mg/L

Hence, molarity of the given solution will be 32.05 mg/L.

HELP ME PLZ Which of the following describes the structure of a fish's swim bladder?
A. Expands and contracts to allow the fish to rise or sink in the water
B. Internal organ filled with liquid
c. Holds urine until it can be released into the environment
D. Internal organ filled with air sacs​

Answers

A: Swim bladder, also called air bladder, buoyancy organ possessed by most bony fish. The swim bladder is located in the body cavity and is derived from an outpocketing of the digestive tube. It contains gas (usually oxygen) and functions as a hydrostatic, or ballast, organ, enabling the fish to maintain its depth without floating upward or sinking. It also serves as a resonating chamber to produce or receive sound. In some species the swim bladder contains oil instead of gas. In certain primitive fish it functions as a lung or respiratory aid instead of a hydrostatic organ. The swim bladder is missing in some bottom-dwelling and deep-sea bony fish (teleosts) and in all cartilaginous fish (sharks, skates, and rays).
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Teleost fish in cross section.


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This article was most recently revised and updated by Adam Augustyn, Managing Editor, Reference Content.
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Bladder, membranous sac in animals that serves as the receptacle of a fluid or gas. See gallbladder; swim bladder; urinary bladder.
Related Topics: Bladder cancer Urinary bladder Swim bladder Ureter
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gallbladder; bile ducts
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Gallbladder, a muscular membranous sac that stores and concentrates bile, a fluid that...…
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swim bladder
Swim bladder, buoyancy organ possessed by most bony fish. The swim bladder is located...…
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What is a chemical reaction?​

Answers

Answer:

A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products. ... A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

Explanation:

hyy can you my friend lol ,, ☺️

which best describes the relationship between internal energy and thermal energy

Answers

Answer:

answer is d on edge

Explanation:

aluminuim is many factured by the electrolysis of molten aluminium oxide what are the gasses formed

Answers

Answer:

oxygen

Explanation:

oxygen ions will be oxidised to form oxygen gas at the anode

What is chemical reaction ?

Answers

Answer:

CHEMICAL REACTION : A process in which new substances with new properties are formed from one or more substances.

REACTANTS - Substances which take part in a chemical reaction.

PRODUCTS - Substances which are formed in a chemical reaction.

Examples of chemical reactions : Digestion of food, respiration, rusting of iron, burning of magnesium ribbon, formation of curd etc.

Answer:

Explanation:

Chemical reaction is one or more reactants react with each other to from new products.

nhóm nào gồm tất cả các kim loại tan trong axit sunfuric đặc nóng nhưng không tan trong axit sunfuric loãng là

Answers

Answer:Nhóm gồm tất cả các kim loại tan trong axit sunfuric đặc nóng nhưng không tan trong axit sunfuric lo

Al, Cu, Au.

Al, Fe, Cr.

Ag, Fe, Pt.

Ag, Cu, Hg.

Explanation:

8. What is the oxidation number of N in KNO3?

Answers

Answer:

The oxidation state of N in the KNO3 is +5

Explanation:

Oxidation rules:

1. Oxygen is -2, unless in peroxides.

2. Group 1 metals = +1

3. Group 2 metals = +2

4. If the molecule is neutral, all of the oxidation numbers have to add up to zero.

5. If the molecule is charged, all of the oxidation numbers have to add up to the charge of the molecule.  

So, the given formula represents the salt compound formula unit of potassium nitrate:  KNO3  

The formula unit is uncharged.

From our rules, we know that,

O = -2

And we can find K on the periodic table, in the first group, thus giving it a +1 charge. Now let's put it all together.

K = +1

N = x

O = -2

Let's take into account the number of atoms of each element we have and make an equation since we know everything has to add up to zero since the molecules are neutral.

+1 +x+3 (-2) = 0 (notice we multiplied 3 by -2 because in the formula we have 3 atoms of oxygen with -2 charge each)

x - 5 = 0

x = 5

Therefore, the oxidation number of N in KNO3 is +5.

what is solution, colloid, suspension?​

Answers

Explanation:

SOLUTION:

Solution is a homogenous mixture of two or more substances in relative amounts that can be varied continuously up to what is called the limit of solubility.

COLLOID:

A mixture in which one substance is divided into minute particles (called colloidal particles) and dispersed throughout a second substance

SUSPENSION:

A suspension is a heterogeneous mixture of a finely distributed solid in a liquid. The solid is not dissolved in the liquid, as is the case with a mixture of salt and water.

Suspensions and colloids are heterogeneous mixtures. A suspension is identifiable because its particles are large and settle out of the dispersing medium due to the effects of gravity. The dispersed particles of a colloid are intermediate in size between those of a solution and a suspension.Above ans is correct mark it as brainliest ans

0 / 5 points
Order the following chemicals from lowest to highest melting point.
Water
Paraffin wax
Hydrogen sulfide
Ethanol
Carbon dioxide

Answers

Answer:

Ethanol  -   -173.5°FHydrogen sulfide -  -121.9°FCarbon dioxide  -  -69.9 °FWater - 32°FParaffin wax - 115 to 154 °F

Explanation:

Ethanol is a chemical, grain alcohol is a volatile and flammable, colorless, and odorless substance. The versatile solvent has many acidic compositions. Paraffin wax is an soft and colorless solid that is made from petroleum coal and oil. It is an excellent material for storing heat.

plz answer (g) i will give rating 5 and thanks who answer plz fast

Answers

Answer:

Like many common group 2 metal carbonates, magnesium carbonate reacts with aqueous acids to release carbon dioxide and water

 MgCO3 + 2 HCl → MgCl2 + CO2 + H2O.

The procedure to obtain pure magnesium chloride from the reaction is as thus

Step 1: Reaction

- Leave the dilute hydrochloric acid in a beaker.

- Add Magnesium carbonate slowly until it is in excess or until no more gas seem to be getting liberated.

Step 2: Filtration

- Filter with filter paper and funnel.

- Filter off the excess magnesium carbonate as magnesium chloride will be in aqueous form (liquid) and will come out with the filtrate. The residue is the excess magnesium carbonate.

Step 3: Crystallization to obtain solid crystals from the filtrate.

- Pour filtrate solution into evaporating dish/basin

- Provide heat using Bunsen burner

- Pour solution into an evaporating basin and heat over a water bath

- Stop heating when crystals start to form

allow water to evaporate until pure crystals remain.

- Dry crystals using absorbent paper or warm oven.

Precautions

- Use personal protective equipment such as gloves, a lab coat and wear eye protection, especially when heating.

- Avoid inhaling unnecessary gases during the whole process.

Using the equation below, calculate how many grams of water (H2O) you have if you start with 12 grams of
hydrogen?
2 H2 + O2 → 2 H2O

Answers

Answer:

12g

Explanation:

The following equation is given in this question:

2H2 + O2 → 2H2O

According to this balanced chemical equation, 2 moles of hydrogen gas is used to produce 2 moles of water molecule.

Hence, if 12 grams of hydrogen is used, 12 × 2/2 = 24/2

= 12 grams of H2O will be produced.

how many grams of potassium cyanide would be needed to make a saturated solution for the volumes indicated below? The solubility of potassium cyanide is 50.0g/100ml
A. 0.150L
B. 75.0mL
C. 1.10L
D. 225mL

Answers

You will need 75.0ml grams of potassium cyanide

What is the redox half equation for 3Ag2S + 2Al --> 6Ag + Al2, and identity which material is oxidized and which is reduced? :)

Answers

Answer:

Al is oxidized while Ag is reduced.

Explanation:

The complete molecular equation is;

3Ag2S + 2Al --> 6Ag + Al2S3

Oxidation half equation;

2Al ------> 2Al^3+ + 6e

Reduction half equation;

6Ag^+ + 6e -------> 6Ag

Overall redox reaction equation;

2Al + 6Ag^+ ----->2Al^3+ + 6Ag

Hence; Al is oxidized while Ag is reduced.

Calculate the volume (in L) that 3.25 mol of helium gas will occupy at a temperature of 25.0 °C and a pressure of 799 mm Hg.

Answers

Answer:

V = 6.34 L

Explanation:

Given that,

Number of moles of Helium gas, n = 3.25 mol

Temperature, T = 25 °C = 298 K

Pressure, P = 799 mm Hg

We know that,

PV = nRT

Where

R is the gas constant, R = 62.4 L-mm Hg/mol K

So,

[tex]V=\dfrac{nRT}{P}\\\\V=\dfrac{3.25\times 62.4\times 25}{799}\\\\V=6.34\ L[/tex]

So, the volume of the gas is 6.34 L.

. The Ksp of barium sulfate is 1.1 × 10–10. What is the sulfate-ion concentration of a 1.0-L saturated solution of BaSO4 to which 0.025 mol of Ba(NO3)2 is added? 4.4 × 10–9M 1.0 × 10–5M 6.6 × 10–5M 2.8 × 10–12M

Answers

Answer:

[tex][SO_4^{2-}]=4.4*10^{-9}M[/tex]

Explanation:

From the question we are told that:

[tex]Ksp=1.1*10^{-10}[/tex]

Volume of [tex]SO_4^{2-}=1.O[/tex]

Moles of  [tex]Ba(NO_3)^2 =0.025[/tex]

Generally the equation for Ksp is mathematically given by

[tex]Ksp=[Ba^{2+}][SO_4^{2-}][/tex]

[tex]1.1*10^{-10}=[0.025][SO_4^{2-}][/tex]

Therefore

[tex][SO_4^{2-}]=4.4*10^{-9}M[/tex]

For the following reaction of N2O4, the equilibrium constant is 0.593 at a particular temperature.
N2O4(g) ⇌ 2 NO2(g)
If the initial concentration of N2O4 is 0.880M, what are the equilibrium concentrations?

Please show work!

Answers

Answer:

"0.583" is the appropriate answer.

Explanation:

Let,

The initial constant of [tex]N_2O_4[/tex] be "C".

Amount of [tex]N_2O_4[/tex] dissociated into [tex]NO_2[/tex] be "x".

now,

                                     [tex]N_2O_4 \rightleftharpoons 2NO_2[/tex]

Initial constant               C            -

Equilibrium constant     C          2x

The Kc is given as:

⇒ [tex]K_c = \frac{[NO_2]^2}{[N_2O_4]}[/tex]

         [tex]=\frac{(2x)^2}{C-x}[/tex]

[tex]0.593=\frac{4x^2}{0.88-x}[/tex]

  [tex]4x^2=0.593(0.88-x)[/tex]

  [tex]4x^2=0.512-0.593\ x[/tex]

     [tex]x=0.291[/tex]

hence,

The constant of [tex]NO_2[/tex] will be:

= [tex]2x[/tex]

= [tex]0.583[/tex]

what structure does solid lead (11)fluoride have​

Answers

Crystal structure is fluorite

Predict what would happen if a scientist added potassium to a dilute acid.​

Answers

Potassium reacts with dilute hydrochloric acid to give potassium chloride and hydrogen gas. Heating small pieces of Potassium in air results in the substance melting without any flame being seen and turning instantly into a mixture of potassium peroxide and potassium super oxide.

A Potassium Reaction involves a process in which Potassium is mixed with another substance which react to form something else. Reactions are manifested by the disappearance of properties characteristic of Potassium and the appearance of new properties in the new substance or Compound.

The substances initially involved in a reaction are called reactants or reagents. The most important of the Potassium compounds is Potassium chloride (KCl) which is used in the production of fertilizers and chemicals and also as a salt substitute. Other important compounds are Potassium nitrate (KNO3), also known as saltpeter which is used in the production of gunpowder, fertilizers and pyrotechnics and Potassium hydroxide (KOH) is used to make detergents and soaps. Reactions are described with Chemical Formula and Equations.

Hiii pls help me to write out the ionic equation ​

Answers

Answer:

STEP I

This is the balanced equation for the given reaction:-

[tex] 2KOH_{(aq)} + H_2SO_4{}_{(aq)} \rightarrow K_2SO_4{}_{(aq)} + 2H_2O_{(l)} [/tex]

STEP II

The compounds marked with (aq) are soluble ionic compounds. They must be

broken into their respective ions.

see, in the equation KOH, H2SO4, and K2SO4 are marked with (aq).

On breaking them into their respective ions :-

2KOH -> 2K+ + 2OH-H2SO4 -> 2H+ + (SO4)2-K2SO4 -> 2K+ + (SO4)2-

STEP III

Rewriting these in the form of equation

[tex] \underline{\pmb{2K^+} }+ 2OH^- + 2H^+ + \pmb{\underline{{SO_4{}^{2-}}} \: \rightarrow \: \underline{\pmb{2K^+}}} + \underline{\pmb{SO_4{}^{2-}}} + 2H_2O [/tex]

STEP IV

Canceling spectator ions, the ions that appear the same on either side of the equation

(note: in the above step the ions in bold have gotten canceled.)

[tex] \boxed{ \mathfrak{ \red{ 2OH^-{}_{(aq)} + 2H^+{(aq.)} \rightarrow H_2O{}_{(l)}}}} [/tex]

This is the net ionic equation.

____________________________

[tex] \\ [/tex]

[tex]\mathfrak{\underline{\green{ Why\: KOH \:has\: been\: taken\: as\: aqueous ?}}} [/tex]

KOH has been taken as aqueous because the question informs us that we have a solution of KOH. by solution it means that KOH has been dissolved in water before use.

[Alkali metal hydroxides are the only halides soluble in water ]

Calculate the solubility of Maslog at 25€
4 30-0cm of its Saturated solution at that
temperature gave 180g of the anhydrous
C= 12. 0-46. Ma =23
Salt​

Answers

Answer:

20

Explanation:

calculated saturated solutions

What is the name of the molecule shown below?

A) ethanol
B) ethanal
C) ethanoic acid
D) ethylamine

Answers

The answer is B, Ethanal

The name of the molecule shown is Ethanol.

What is Ethanol?

Ethanol is a alcoholic substance that is formed from fermentation of glucose in the presence of yeast or microorganisms.

It has a chemical group that have methyl group, hydroxyl group OH which is bonded to carbon atom.

Therefore, The name of the molecule shown is Ethanol.

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Below is a picture of two blocks made of different materials. Block A Block B grams grams If Block A is located on the Moon and Block B is located on Earth, which of the following is true about the two blocks?
a: they have the same density.
b: they have the same volume.
c: they have the same mass.
d: they have the same weight. ​

Answers

Answer:

A

Explanation:

this is because density is the mass per unit volume of an object

If Block A is located on the Moon and Block B is located on Earth, then the truth about the two blocks will be they have the same mass, and they have the same density. The correct option is a and c.

What is mass?

Mass is a physical body's total amount of matter. By multiplying the object's volume and density, it can be determined.

Density, volume, mass, and weight are the four entities that are supplied. The volume and weight of the object on the moon will alter as a result of these entities. They will be different in the universe if he goes to Earth.

The location and gravitational field of an object do not affect its density or mass.

Thus, the correct options are a: they have the same density, and c. they have the same mass.

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On a plateau on a heating curve, _____.


phase changes are occurring

no heat is being absorbed

all the absorbed heat is being used to overcome forces of attraction between the particles or molecules and phase changes are occurring

all the absorbed heat is being used to overcome forces of attraction between the particles or molecules

Answers

Answer:

On a Plateu on a heating curve phase changes are occuring

Explanation:

The first Phase is melting during which the temrature stays the same while water melts.Other phase changes are freezing sublimation Vaourization condensation and deposition

Situación 1: Cierto catión divalente posee 2 electrones en n=5. Además, su número de masa es igual a 118. Hallar lo siguiente:

1. Su distribución electrónica

2. Su número de neutrones

3. Protones más electrones

4. Sus posibles números cuánticos de su último electrón

…………………………………………………………………………………………………

Answers

El catión divalente descrito en la pregunta es [tex]Sn^{2+}[/tex]. Divalente significa que ha perdido dos electrones.

La distribución electrónica de [tex]Sn^{2+}[/tex] es;

  1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10

El número másico de estaño es 118 y [tex]Sn^{2+}[/tex] tiene 50 protones.

Por lo tanto, el número de masa de Sn =[tex]118 - 50 = 68 neutrones[/tex]

El número de electrones es 49 y el número de protones es 50 en [tex]Sn^{2+}[/tex]por tanto;

El número de electrones + protones = 99

El último electrón está en el orbital, 5s2, por lo que sus posibles números cuánticos son;

n = 5, l = 0, m = 0, s = ±1/2

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15 ft is the same as how many yards

Answers

I think it would’ve 5 yards
5 yards is your anwser

Help please and thank youu

Answers

Answer:

elementos original

set onde

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