Which of the following statements best explains the observation that hydrogen fluoride has the highest boiling point of all the hydrogen halides?a. The fluorine in HF is the smallest atom for all of the halogens. b. Fluorine is the most electronegative of the atoms. c. HF can participate in hydrogen bonding. d. HF is very reactive and can react and dissolve glass e. HF is a weak acid, and doesn

Answers

Answer 1

Answer:

c. HF can participate in hydrogen bonding.

Explanation:

The boiling points of substances  often reflect the strength of the intermolecular forces operating among the molecules.

If it takes more energy to  separate molecules of HF than of the rest of the hydrogen halides because HF molecules are held  together by stronger intermolecular forces, then the boiling point of HF will be higher than  that of all the hydrogen halides.

A particularly strong  type of intermolecular attraction is called the hydrogen bond, which is a special type of dipole-dipole interaction between the hydrogen atom in a polar bond, such as N-H, O-H, or F-H, and an electronegative O, N, or F atom.

Which Of The Following Statements Best Explains The Observation That Hydrogen Fluoride Has The Highest

Related Questions

the box's volume is 42cm3 and the mass is 20g what is the density?

Answers

Answer:

0.5g/cm^3

Explanation:

Density = Mass / Volume

Density = 20g / 42cm^3

Density = 0.476g/cm^3

note*: round to the nearest sigfig

Answer is: 0.5g/cm^3

The box's volume is 42cm³ and the mass is 20g then the density is 0.5g/cm³.

What is density ?

The mass of a substance per unit of volume is its density. Density is most frequently represented by the symbol, however the Latin letter D may also be used. Density is calculated mathematically by dividing mass by volume.

How much "stuff" is contained in a specific quantity of space is determined by its density. For instance, a block of the harder, lighter element gold (Au) will be denser than a block of the heavier element lead (Pb) (Au).

Because it enables us to predict which compounds will float and which will sink in a liquid, density is a crucial notion. As long as an object's density is lower than the liquid's density, it will often float.

Density = Mass ÷ Volume

Density = 20g ÷ 42cm³

Density = 0.476g/cm³

= 0.5g/cm³

Thus, the density is  0.5g/cm³.

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At a resting pulse rate of 81 beats per minute, the human heart typically pumps about 65 mL of blood per beat. Blood has a density of 1060 kg/m3. Circulating all of the blood in the body through the heart takes about 1 min for a person at rest.Required:a. How much blood is in the body? b. On average, what mass of blood does the heart pump with each heart beat?

Answers

Answer:

5.265L/body ; 68.9×10³ kg / beat

Explanation:

Given the following :

Resting pulse rate = 81 beats / minute

Amount of blood pumped per beat = 65mL = (65 / 1000)L = 0.65L

Density of blood = 1060 kg/m^3

Circulation time = 1 minute for a person at rest

A.) How much blood is in the body?

Resting pulse rate × amount of blood pumped per beat * circulating time

(81 beat / min) × 0.65L/beat * 1minute / body = 5.265L / body

B.) b. On average, what mass of blood does the heart pump with each heart beat?

0.065L/beat * 1m³/1000L= 0.000065 m³ / beat

From density = mass / volume ;

Average mass = density * volume

= 1060kg/m³ * 0.000065 m³ / beat

= 0.0689kg / beat

= 68.9 × 10³ kg / beat

(3.0 x 10^8) / (5.76 x 10^14 s-1)

Answers

Answer:

521 nm

Explanation:

The following data were obtained from the question:

Frequency (f) = 5.76×10¹⁴ s¯¹

Wavelength (λ) =?

Velocity (v) , wavelength (λ) and frequency of a wave are related according to the following equation:

Velocity (v) = wavelength (λ) × frequency (f)

v = λf

With the above equation, we can obtain the wavelength of the photon of the green light as follow:

Frequency (f) = 5.76×10¹⁴ s¯¹

Velocity of light (v) = 3×10⁸ m/s

Wavelength (λ) =?

v = λf

3×10⁸ = λ × 5.76×10¹⁴

Divide both side by 5.76×10¹⁴

λ = 3×10⁸ / 5.76×10¹⁴

λ = 5.21×10¯⁷ m

Finally, we shall convert 5.21×10¯⁷ m to nanometer (nm).

This can be obtained as follow:

1 m = 1×10⁹ nm

Therefore,

5.21×10¯⁷ m = 5.21×10¯⁷ × 1×10⁹

5.21×10¯⁷ m = 521 nm

Therefore, the wavelength (λ) of the photon of the green light is 521 nm

The measurement 0.020 L is the same as?

Answers

Answer:

20 mL

2 cL

Explanation:

We can use the base 10 decimal system to get equivalent measurements:

1 L = 1000 mL

1 L = 100 cL

What mass of aluminum has a total nuclear charge of 1.6 CC? Aluminum has atomic number 13. Suppose the aluminum is all of the isotope with 14 neutrons. slader

Answers

Answer:

aluminium is all of isotope with 14 neutrons .

The weak acid HA is 4 % ionized (dissociated) in a 0.30 M solution. A. What is Ka for this acid?B. What is the pH of this solution?

Answers

Answer:

[tex]Ka=5x10^{-4}[/tex]

[tex]pH=1.92[/tex]

Explanation:

Hello,

In this case, given the percent ionization and the concentration of the acid, one computes the concentration of hydrogen ions as follows:

[tex]\% ionization=\frac{[H^+]}{[HA]}*100\%[/tex]

[tex][H^+]=\frac{\% ionization*[HA]}{100\%} =\frac{4\%*0.30M}{100\%}=0.012M[/tex]

Therefore the Ka is computed by using the equilibrium expression:

[tex]Ka=\frac{[H^+][A^-]}{[HA]} =\frac{0.012M*0.012M}{0.30M-0.012M}\\ \\Ka=5x10^{-4}[/tex]

And the pH:

[tex]pH=-log([H^+])=-log(0.012)\\\\pH=1.92[/tex]

Regards.


A silver ring has a mass of 138.45 g. How many calories of heat are required to increase the
temperature from 11.8 °C to 162.5 °C?

Answers

Answer:

150.7

Explanation:

162.5 - 11.8 = 150.7

If 33.6 g of NO and 26.9 g of O₂ react together, what is the mass in grams of NO₂ that can be formed via the reaction below? 2 NO (g) + O₂ (g) → 2 NO₂ (g)

Answers

Answer:

If 33.6 g of NO and 26.9 g of O₂ react together, 51.52 grams of NO₂ can be formed.

Explanation:

You know: 2 NO (g) + O₂ (g) → 2 NO₂ (g)

By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of reagent and product participate in the reaction:

NO: 2 moles O₂: 1 moleNO₂: 2 moles

Being:

N: 14 g/moleO: 16 g/mole

the molar mass of the compounds participating in the reaction is:

NO: 14 g/mole + 16 g/mole= 30 g/moleO₂: 2*16 g/mole= 32g/moleNO₂: 14 g/mole + 2*16 g/mole= 46 g/mole

Then, by stoichiometry of the reaction, the following amounts of reactant and product participate in the reaction:

NO: 2 moles* 30 g/mole= 60 gO₂: 1 mole* 32g/mole= 32 gNO₂: 2 moles* 46 g/mole= 92 g

The limiting reagent is one that is consumed first in its entirety, determining the amount of product in the reaction. When the limiting reagent is finished, the chemical reaction will stop.

You can apply the following rule of three to determine the limiting reagent: if by stoichiometry 60 g of NO react with 32 g of O₂, 33.6 g of NO with how much mass of O₂ will it react?

[tex]mass of O_{2}=\frac{33.6 grams of NO*32 grams of O_{2} }{60 grams of NO}[/tex]

mass of O₂= 17.92 grams

But 17.92 grams of O₂ are not available, there are 26.9 grams available. Since it has more mass than it needs to react with 33.6 grams of NO, NO will be the limiting reagent.

Then you apply the following rule of three: if by reaction stoichiometry 60 grams of NO form 92 grams of NO₂, 33.6 grams of NO how much mass of NO₂ does it form?

[tex]mass of NO_{2}=\frac{33.6 grams of NO*92 grams of NO_{2} }{60 grams of NO}[/tex]

mass of NO₂= 51.52 grams

If 33.6 g of NO and 26.9 g of O₂ react together, 51.52 grams of NO₂ can be formed.

How many liters of plasma are present in 8.5 pints?

Answers

Answer:

there are 4.0205 Litres of plasma in 8.5 pints

Explanation:

Recall that:

1 quart qt = 2 pints pt  and 1 quart = 946 mL

∴ two pints will contain 946 mL

and one pint will be = 946 mL/2

=  473 mL

Similarly, 8.5 pints will contain 473 mL × 8.5 = 4020.5  mL

We know that :

1000 mL = 1 Litres

Hence 4020.5 mL = (4020.5 /1000)L

= 4.0205 Litres

Therefore, there are 4.0205 Litres of plasma in 8.5 pints

There are 4.0205 Litres of plasma in 8.5 pints

The calculation is as follows:

1 quart qt = 2 pints pt  

and

1 quart = 946 mL

So, two pints will contain 946 mL

and one pint will be = [tex]946 mL\div 2[/tex]=  473 mL

Now

8.5 pints will contain

[tex]= 473 mL \times 8.5[/tex]

= 4020.5  mL

We know that :

1000 mL = 1 Litres

Hence 4020.5 mL = (4020.5 /1000)L

= 4.0205 Litres

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The density of ethanol is 0.789 g/mL at 200 C. What is the mass of a sample of ethanol, at this temperature, that has a volume of 175.0 mL?

Answers

Answer:

D d

Explanation:

What types of compounds are CaCl2, Cu, C2H6, respectively.

Answers

Answer:

Ionic, metal, organic

Explanation:

In this case, we have to analyze each compound:

-) [tex]CaCl_2 [/tex]

In this compound, we have a non-metal atom (Cl) and a metal atom (Ca) . So, we will have a high electronegativity difference between these atoms, With this in mind, we will have an ionic bond. Ions can be produced:

[tex]CaCl_2~->~Ca^+^2~+~2Cl^-[/tex]

The cation would be [tex]Ca^+^2[/tex] and the anion is [tex]Cl^-[/tex]. So, we will have an ionic compound.

-) [tex]Cu[/tex]

In this case, we have a single atom. If we check the periodic table we will find this atom in the transition metals section (in the middle of the periodic table). So, this indicates that Cu (Copper) is a metal.

-) [tex]C_2H_6[/tex]

In this molecule, we have single bonds between carbon and hydrogen. The electronegativity difference between C and H are not high enough to produce ions. So, with this in mind, we will have covalent bonds. This is the main characteristic of organic compounds. (See figure 1)

CaCl₂, Cu, C₂H₆ are ionic, metal, and organic compounds, respectively.

CaCl₂ is formed by a metal (Ca) and a non-metal (Cl). Due to the difference in their electronegativities, they form ionic compounds. These compounds tend to have high melting and boiling points and conduct electricity in aqueous solution.

Cu is a transition metal. It is a good electric and heat conductor, which is why it is used in cables. It also has high melting and boiling points.

C₂H₆ (ethane) is a hydrocarbon, that is, an organic compound (formed by at least C and H). They are bad conductors and have low melting and boiling points.

CaCl₂, Cu, C₂H₆ are ionic, metal, and organic compounds, respectively.

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Rank the measurements from largest to smallest. .75 Times 10^-3 mL, 325 mu L, 4.11 Times 10^-4 dL.

Answers

Given :

Some volume measurements :

[tex]0.75 \times 10^{-3}\ mL,\ 325\ \mu L,\ 4.11 \times 10^{-4}\ dL[/tex]

To Find :

Rank the measurements from largest to smallest.

Solution :

Now , [tex]1\ \mu l=10^{-3}\ ml[/tex].

Also , [tex]1\ dl=100\ ml[/tex].

So , the measurements in same units are :

[tex]0.75 \times 10^{-3}\ mL,\ 325 \times 10^{-3}\ mL , 4.11 \times 10^{-4} \times 100\ mL\\\\0.75\times 10^{-3}\ mL ,\ 325\times 10^{-3}\ mL ,\ 41.1\times 10^{-3}\ mL[/tex]

So , the order from highest to lowest is :

[tex]325\times 10^{-3}\ mL ,\ 41.1\times 10^{-3}\ mL ,\ 0.75\times 10^{-3}\ mL[/tex]

Hence , this is the required solution .

325 µL > 41.1 µL > 0.75 µL is the ranking of the measurements from largest to smallest.

Measurements have a crucial role in many aspects of daily life, including science, engineering, construction, and cookery. They enable precise measurement, comparison, and communication of an object's size, quantity, or amount. The most widely used measurement systems globally are the metric and imperial systems. There are other measurement systems as well. The International System of Units (SI), generally known as the metric system and based on multiples of ten, is extensively used. It comprises measures for length and mass including metres, grammes, and litres. Units like feet, pounds, and gallons are part of the imperial system, which is primarily used in the United States.

1 mL = 1000 µL      

1 dL = 100 mL

.75 x [tex]10^{-3}[/tex] mL = .75 x [tex]10^{-3}[/tex] x 1000 µL

                      = 0.75 µL

4.11 x [tex]10^{-4}[/tex] dL = 4.11 x[tex]10^{-4 }[/tex]x 100 mL

                     = 0.0411 mL

                     = 41.1 µL

325 µL > 41.1 µL > 0.75 µL

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Which of the following molecules would form a micelle?a. NaClb.CH3COOHc. CH3COO^-NH^4+d. CH3(CH2)^10COO^-Na^+e. CH3(CH2)^10CH3

Answers

Answer:

CH₃(CH₂)₁₀COONa

Explanation:

The compounds given are

NaCl

CH₃COOH

CH₃COONH₄

CH₃(CH₂)₁₀COONa

CH₃(CH₂)₁₀CH₃

CH₃(CH₂)₁₀COONa will form micelle . Micelle are formed by soap solution which helps in the removal of oily dirt from our clothes . They are spherical shaped tiny droplet of oil which contains the tail of long chain organic compound like salt of long chain fatty  acids . The surface of the droplet is lined with the tip of the chain which consists of negative charge of the tail end . On the average , each micelle contains a specific amount of charge . Due to it , they make colloidal solution in the water and gets washed off my water . The oily dirt is thus removed .

CH₃(CH₂)₁₀COONa   ⇄     CH₃(CH₂)₁₀COO⁻   +    Na⁺

CH₃(CH₂)₁₀COO⁻  part which is long chain of fatty acid gets adsorbed by oily droplet formed by oily dirt  and forming micelle .

123.0 x 12.35 / (0.05 x 6.049) significant figures

Answers

Answer:

123.0*12.35/(0.05*6.049)

first do in small bracket 123.0*12.35/0.30245

and then divide 123.0*40.83319557

and multiply 5022.483055

describethe differences in the ways the sand castle is changed by an ocean wave and by someone stompie on it

Answers

A sand castle was changed by the ocean waves would be slowly taken away by the waves and would just become a smooth mound of sand. If someone stomped on it then it would still have the same amount of sand as before but in a different shape.

2.643 grams of potassium butanoate (KCH3(CH2)2CO2 ) is fully dissolved in 50.00 mL of water, which is carefully transferred to a conical flask. Then 100.00 mL of 0.120 M HCℓ is added dropwise to this solution from a burette. Given: Ka(butanoic acid) = 1.5 × 1O−5 . 2.1 Showing all your calculations and reasoning, determine the pH of the solution that results after the addition of all the acid mentioned above.

Answers

Answer:

The pH of the solution is 4.69

Explanation:

Given that,

Mass of potassium = 2.643 grams

Weight of water = 50.00 mL

Weight of HCl=100.00 ml

Mole = 0.120 M

We know that,

[tex]KCH_{3}(CH_{2})_{2}CO_{2}[/tex] is a basic salt.

Let's write it as KY.

The acid [tex]HCH_{3}(CH_{2}CO_{2})[/tex] would become HY.

We need to calculate the moles of KY

Using formula of moles

[tex]moles\ of\ KY=\dfrac{m}{M}\times1000[/tex]

[tex]moles\ of\ KY=\dfrac{2.643}{126}\times1000[/tex]

[tex]moles\ of\ KY=20.97\ m\ mole[/tex]

The reaction is

[tex]KY+HCl\Rightarrow HY+ KCl[/tex]

The number of moles of KY is 20.98 m

initial moles = 20.98

Final moles [tex]m=20.98-0.120\times100= 8.98[/tex]

We need to calculate the value of pKa(HY)

Using formula for pKa(HY)

[tex]pKa_{HY}=-log Ka[/tex]

[tex]pKa_{HY}=-log(1.5\times10^{-5})[/tex]

[tex]pKa_{HY}=4.82[/tex]

We need to calculate the pH of the solution

Using formula of pH

[tex]pH=pKa+log(\dfrac{[KY]}{[KH]})[/tex]

Put the value into the formula

[tex]pH=4.82+log(\dfrac{8.98}{12})[/tex]

[tex]pH=4,69[/tex]

Hence, The pH of the solution is 4.69

Suppose that at 9:00 A.M. the temperature of a room is 18°C, and at noon it is 24°C. What was the increase in temperature?____________________________

Answers

Answer:what’s the answer

Explanation:

How do vapors and gases differ

Answers

Answer:

Difference between Vapor and Gas

Usually, a vapour phase consists of a phase with two different substances at room temperature, whereas a gas phase consists of a single substance at a defined thermodynamic range, at room temperature

Explanation:

What circumstances during the French Revolution permitted the metric system to gain a foothold?

Answers

Answer:

The trade was difficult with the old system.

Explanation:

The existing system for the measurement of goods did not work well in the trade because there are different system used by the people of different cities so metric system was used in the whole country in place of the old system of measurement during the French Revolution in order to make the trade easier and quick across the country. This metric system is extensively used in the trade as compared to the old system of measurement due to its easiness and fast.

What should you do if you spill a chemical on your hand?

Answers

Answer:

You should rinse your head thoroughly ASAP, don't try to blow on the chemical or anything. Its going burn, you have to let your head cool off.

Explanation:

why rinse off your hand? you're getting the fluid away fast, so I can't infect your skin that much.

Help pleaseeee.......

Answers

Answer:

38,000,000 grams0.0043 l6500mm2000cm293K

Explanation:

1.

[tex]1000 \:g = \:1\:kilogram\\x \: grams = 38,000\:kilogram\\\\x = 38,000,000 \:grams[/tex]

2.

[tex]1 \:ml =0.001\:l\\4.3\:ml =x\: l\\\\x = 0.0043[/tex]

3.

[tex]1\:m= 1000\:mm\\6.5\:m = x\\\\x = 6500 mm[/tex]

4.

[tex]1\:km = 100,000\:cm \\0.02km = x\:cm\\\\x = 2000\:cm[/tex]

5 .[tex]20\°C = 20+273 \\= 293 K[/tex]

Arrange these compounds by their expected boiling point.Highest boiling pointLowest boiling pointCH3OH, CH3Cl, CH4

Answers

Answer:

CH3OH > CH3Cl > CH4

Explanation:

The boiling point of a compound depends on the nature and magnitude of intermolecular forces acting between its molecules.

Methanol contains the -OH group, hence hydrogen bonds are dominant intermolecular forces in the compound. Presence of hydrogen bonds increases the boiling point of a substance, hence methanol has the highest boiling point followed by chloromethane which has dipole-dipole interaction as dominant intermolecular forces and methane having only weak dispersion forces as dominant intermolecular forces.

A solution is made by dissolving

37.5g of sodium sulfide (Na2S) in

217g of water.

What is the molality of the solution?

Answers

Answer:

THE MOLARITY IS 2.22 MOL/DM3

Explanation:

The solution formed was as a result of dissolving 37.5 g of Na2S in 217 g of water

Relative molecular mass of Na2S = ( 23* 2 + 32) = 78 g/mol

Molarity in g/dm3 is the amount of the substance dissolved in 1000 g or 1 L of the solvent. So we have;

37.5 g of Na2S = 217 g of water

( 37.5 * 1000 / 217 ) g = 1000 g of water

So, 172.81 g/dm3 of the solution

So therefore, molarity in mol/dm3 = mol in g/dm3 / molar mass

Molarity = 172.81 g/dm3 / 78 g/mol

Molarity = 2.22 mol/dm3

The molarity of the solution is 2.22 mol/dm3

Answer:

The answer is 2.22mol

Explanation:

Fill in the blank to complete each statement.
5. A(n)________ change releases energy.
6. New substances are produced by a(n)______
change.
7._________ is related to the energy of motion of the particles of matter.
8. The law of________ of mass states that in any physical or chemical
change, matter is neither created nor destroyed.
9.______energy naturally flows from warmer matter to cooler matter.
10. The form or appearance of matter is altered during a(n)______ change.

Answers

Answer:

5.physical change

6.chemical change

7.physical change

8.conservation of mass

9.thermal energy

10.physical change

I honeslty dont know if this is right

explanation:

What is the name of the ionic compound Li3PO4?

Answers

Answer:

lithium phosphate

Explanation:

The name of the given ionic compound is lithium phosphate. The correct option is D.

What is an ionic compound?

Ionic compounds are neutral compounds composed of positively charged cations as well as negatively charged anions.

For binary ionic compounds, the identity of the cation is written first, accompanied by the title of the anion.

Ionic compounds are made up of ions that are held together through the force of attraction between oppositely charged ions.

One of the most well-known ionic compounds is common salt. Molecular compounds are made up of discrete molecules that are held together by sharing electrons, a process known as covalent bonding.

Lithium phosphate (Li3PO4) is an ionic compound that is primarily used as a conductive thin-film electrolyte in the fabrication of high performance energy storage devices.

Thus, the correct option is D.

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When 5.00 g of sulfur are combined with 5.00 g of oxygen, 10.00 g of sulfur dioxide (SO2) are formed.What mass of oxygen would be required to convert 4.00 g of sulfur into sulfur trioxide (SO3)?

Answers

Answer:

[tex]m_{O_2}=6gO_2[/tex]

Explanation:

Hello,

In this case, given the reaction:

[tex]2S+3O_2\rightarrow 2SO_3[/tex]

Thus, for 4.00 g of sulfur (atomic mass = 32 g/mol), we apply the shown 2:3 mole ratio with oxygen (molar mass = 32 g/mol) in order to compute its requirement:

[tex]m_{O_2}=4.00gS*\frac{1molS}{32gS}*\frac{3molO_2}{2molS}*\frac{32gO_2}{1molO_2}\\ \\m_{O_2}=6gO_2[/tex]

Best regards.

The mass of oxygen would be required is [tex]6gO_2[/tex]

The calculation is as follows;

[tex]= 4.00 \times \frac{1molS}{32gS} \times \frac{3molO_2}{2molS} \times \frac{32gO_2}{1molO_2} \\\\= 6gO_2[/tex]

Here for 4.00 g of sulfur (atomic mass = 32 g/mol), we used the shown 2:3 mole ratio with oxygen (molar mass = 32 g/mol).

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Consider 55 mL of water (H2O) in a beaker and 55 mL of acetone |(CHs)2CO in an identical beaker under identical conditions Complete the sentences to explain the relationship between the vapor pressure of water and acetone. Match the words to the appropriate blanks in the sentences.
larger than
more quickly than
the same as
weaker
smaller than
stronger
more slowly than
at the same rate as
1. Water will evaporate______ acetone
2. The vapor pressure of acetone is__________ than that of water at the same temperature.
3. This is because the intermolecular forces between acetone molecules are ___________than those between water molecules.

Answers

Answer:

1. more slowly than

2. larger than

3. weaker

Explanation:

Acetone molecules are bonded by very weak intermolecular forces when compared to that of the hydrogen bond between water molecules. This makes it very easy for acetone molecules to vaporize easily into its gaseous state, much more faster than water molecules (since the acetone molecules need a lesser amount of energy to break these bonds). Also, the boiling point of liquid acetone is much lower than that of water, meaning that it has a higher vapor pressure than that of water.

Question 2
5 pts
80) Multiply 6.4 x 10-3 times 8.0 x 10' and express the answer in scientific notation.
O 5.1 x 10-21
O 5.1 x 10-3
O 5.1x 103
O 5.1x 104
0 5.1 x 105
5 pts

Answers

Answer:

5.1  x 10⁻¹

Explanation:

Given:

6.4 × 10⁻³ × 8.0 × 10¹

Find:

Value of equation

Computation:

6.4 × 10⁻³ × 8.0 x 10¹

[6.4 × 8.0] × [10⁻³ × 10¹]

[51.2] × [10⁻²]

5.12 x 10⁻¹

5.1  x 10⁻¹ (Approx)

The most common use of the ammonia manufactured is in A. fertilizers for crops. B. plastics manufacturing. C. household cleaners. D. dyes.

Answers

A fertilizer for crops
Yes fertilizers for crops is the correct answer

a. When 25.4 and 40.433 are added, the answer should be based on how significant figures or decimal

Answers

Answer:

65.8 and it is shown considering the significant figures of the shortest number.

Explanation:

Hello,

In this case, when we add 25.4 and 40.433 the result is 65.833, nevertheless, the result is shown based on the initial number having the fewest amount of significant figures that in this case is 25.4 that has three, therefore, the result must be 65.8 and it is shown considering the significant figures of the shortest.

Regards.

Other Questions
Alan sells electronics, earning a base wage of $320 for one week, and a commission equal to 5% of his sales. he needs to earn at least $600 each week to cover his expenses. set up and solve an inequality to determine what Alans sales can be in order to ensure his expenses are covered. A rectangle has sides that measure 2 x + 11 units long and 10 x + 1 units long. What is the expression that represents the perimeter of the rectangle? 3. Why do you think that Thomas Jefferson wrote a paragraph about slaverywhen he wrote the Declaration of Independence ? moccasins,______, were commonly worn by kadohadacho men.A. a type of soft leather shoeB. or loinclothesC. tattoos on the bodyD. head ornaments made from a deer's tail explanation of how a shape moves with the rule (x+4, y-2) A student has homework assignments in each of his five daily classes he estimates that each assignment will take 30 minutes to complete it if is estimate is correct what is the latest he can start to work so that he can finish in time to watch his favorite television show at 10 PM Write the following as a mixed number. ( use the / symbol in your answer).3.7777777... Values of k for which the quadratic equation 2x - kx + k 0 has equal roots isa)0onlyb)4c)8 onlyd)0,8 how does the town respond to mrs.hutchinsons lateness? IF YOU COULD HELP ME I'D BE SO GRATEFUL! (Giving out brainliest) The points A(0,5), B(4,2), and C(0,2) form the vertices of a right triangle in the coordinate plane. What is the equation of the line that forms the hypotenuse? 2. Which of the following is NOT an example of anadministrative body focused on global well-being?a) The United Nationsb) The World Trade Organizationc) The World Health Organizationd) North Atlantic Treaty Organization (NATO) TEST HELP PLEASE!!!!!!!It is best to say that the protection to properties offered by sea walls along coasts __________.A. decreases the present and future risk to human properties D. increases both the present and future risk to human properties C. decreases the present but increases the future risk D. increases the present but decreases the future risk Please select the best answer from the choices provided O A O D Aerobic exercise forces the body to provide extra oxygen to the muscles.Please select the best answer from the choices provided.TF Looking at the front page for Collections 4: Risk and Exploration. After reading the quote,"All adventures, especially into new territory, are scary." Write a brief paragraphexplaining what you think this chapter is about? if you make 1,000 dollars an hour and you need to make 28,600 to buy a home how many hours do you need to work (i NEED HELP NOW i will give 5 stars to the first person who answers Debt that is callable by the creditor in the upcoming year, but is not expected to be called, is reported as Adsila and Carlos volunteer to fill gift boxes for soldiers serving overseas.Both work at a constant rate. They work together for 6 hours and fill 126 boxes,Adsila fills 9 boxes every hour. How many boxes does Carlos fill every hour? Melody constitutes the vertical aspect of music and harmony the horizontal aspect.a. Trueb. False I NEED HELP!!!!!!!!!!!!!!!!!!!!!!!! Analyze the map below and answer the question that follows. A map projection of Earth that shows continent size correctly but splits the oceans. Image by Mdf The map projection above was created by unwrapping the Earth like an orange peel. It shows sizes accurately, but it splits the Earths oceans. Which map projection is shown in this image? A. the Mercator projection B. the Thematic projection C. the Goode Equal Area projection D. the Winkel Tripel projection Please select the best answer from the choices provided The temperature of a chicken roast must be 165 degrees F. What HACCP principal is addressed by cooking the chicken to the required temperature