PLEASE HELP IM FINNA GIVE POINTS AND BRAINLIEST ASSAPPPP

Answer:

3.96 MINUTES

Explanation:

Karl likes to use cruise control when he drives on

the highway. After setting cruise control at 33.53

m/s (75 mph). At this speed, how long would it

take Karl to travel 8 kilometers?

VELOCITY = DISTANCE/TIME

OR

V=D/T

SO

VT=D

SO

T=D/V

THE DISTANCE IS 8 KM

THE VELOCITY IS 75 MPH

THERE ARE 1.61 KM PER MILE

SO

75M[H =

75 X 1.61 KM/H =

121 KM/HR

T=D/V

T=8/121 =0.066 HOUR =

0.066 X 60 MINUTES =

3.96 MINUTES

CHECK

75 MPH =

(75 X 1.61) KM/60 MINUTES =

120,75 KM/60 MINUTES=

2.01 KM/MINUTE

to travel 8 K,M WILL TAKE

8/2.01 = 3.98 minutes

The number of moles of excess reactant is used in the experiment is 0.33 moles. The number of moles of aluminium sulphates was obtained  0.129 moles if the percentage yield is 77%.

2Al(OH)3(aq) + 3H2SO4(aq) -----> Al2(SO4)3(aq) + 6H2O(l)

Number of moles of Al(OH)3 = 0.500 mol

Number of moles of H2SO4 = 0.500 mol

We have to determine the limiting reactant as follows;

2 moles of Al(OH)3 reacts with 3 moles of H2SO4

0.500 moles of  Al(OH)3 reacts with 0.500 moles ×  3 moles/2 moles

= 0.75 moles of H2SO4.

This means that H2SO4 is limiting reactant

Since  3 moles of H2SO4 reacts with 2 moles of Al(OH)3

0.500 moles of  H2SO4 reacts with  0.500 × 2 moles /3 moles

= 0.33 moles

Only  0.33 moles of excess reactant was used in the experiment.

3 moles of  H2SO4 yields 1 mole of  Al2(SO4)3

0.500 moles of  H2SO4 yields  0.500 moles ×  1 mole/3 moles = 0.167 moles

Theoretical yield of Al2(SO4)3 = 0.167 moles

% yield = actual yield/Theoretical yield × 100/1

Actual yield = % yield × Theoretical yield /100

Actual yield =  77 ×  0.167/100

Actual yield = 0.129 moles

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Answer:

don't know00000⁰0000000

Answer:

4.0 grams

Explanation:

I hope that helped!!

Answer:

1=n yan ang alam heheheheh sorry kong mali

Answer:

Conservation of mass occur when your chemical equation is balanced.

So let's see if it is balanced:

6CO₂ + 6H₂O ------> C₆H₁₂O₆ + O₂

You need to have the same quantity of atoms of each element on the product side and reactant side.

Reactant side: 6CO₂ + 6H₂O

Product side: C₆H₁₂O₆ + O₂

Answer: the second answer makes the most sense

Explanation:

Curt Lemon was tensing the weighters there. So he was playing fidgets and  dogs. Lemon  make the character mentally fearing and thus option B is correct.

This is a terrifying tale involving a man who is going to the dentist. He is dreadfully afraid of visiting the dentist because of the pain it would cause. Then, for him, things significantly worsen..

He notes that because he didn't know Curt Lemon well, mourning for him was challenging, but to avoid sounding sappy, he shares a quick Curt Lemon story.

The men are working in an operational region near the South China Sea in February. An Army dentist is flown in one day to examine the men's teeth. Curt Lemon is anxious as the platoon waits to be checked one by one.

Finally, he acknowledges that when in high school, he had some negative dental experiences. He claims that nobody should interfere with his teeth, and when he is called, he will decline to enter.

However, when the dentist summons him a little while later, Lemon gets up and enters the tent.Thus option B is correct.

To find more about the story Dentist, refer the link below:

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#SPJ6

Answer:

Use the formula below

Explanation:

use the moles ratio for this by writing down the reaction and balancing the equation

Answer:

The one that burned longer because it burned longer

Explanation:

Answer:

8.595 mol NO2

Explanation:

5.73 mol HNO3 * [tex](\frac{3 mol NO2}{2 mol HNO3})[/tex] = 8.595 mol NO2

Answer:

The concentration of H⁺ in a 2.5 M HCl solution is 2.5 M

Explanation:

As HCl is a strong acid and hence a strong electrolyte, it will dissociate as

HCl ⟶ H⁺ + Cl⁻

So, The concentration of H⁺ will be 2.5 M (same as HCl)

Thus, The concentration of H⁺ in a 2.5 M HCl solution is 2.5 M

-TheUnknownScientist 72

Answer:

The student's speed is 4 m/s.

Explanation:

Speed = Distance/Time

Speed = 100m/25s

Speed = 4 m/s

Answer:

Shut yo musty dusty ah up zaddy

Explanation:

come here big mami

Answer:

8

Explanation:

There are 8 carbon atoms in the reactants' side, because you multiply the 2 in front of C4H10 and the 4 under the C atom, and that gives you 8. So, 8 carbon atoms.

Answer:  I think its in order, not really sure. First answer on top. Next answer on the left and the Last answer on the right.

Answer:

1.247mol

Explanation:

moles=mass/molar mass

molar mass of water = 1+1+16=18

mass = 22.45

22.45÷18

= 1.247 moles of water

Answer:

Explanation:

Explanation

Periodic tables vary in how many places of sig digits they show. I always use approximate values which means that you will have to redo the question using your values

Water (1 mole)

2 * H =  1.01 * 2 = 2.02

1 * O = 16 * 1 =   16.00

Mass 1 mole =   18.02

Moles water

given mass = 22.45

molar mass = 18.02

moles = given mass/ molar mass

moles = 22.45 / 18.02

moles = 1.246 moles

#1

[tex]\\ \sf\longmapsto2 Ca+O_2\longrightarrow 2CaO[/tex]

Balanced

#2

[tex]\\ \sf\longmapsto N_2+3H_2\longrightarrow 2NH_3[/tex]

Balanced

#3

[tex]\\ \sf\longmapsto 2Cu_2O+C\longrightarrow 4Cu+CO_2[/tex]

Balanced

#4

[tex]\\ \sf\longmapsto H_2O_2\longrightarrow H_2O+O_2[/tex]

Already balanced

Answer:

a because mass is converted into weight

Answer:

B

Explanation:

I know im right I forgot some of the lessons cause this was still in grade 3 now Im grade 6....

Not all acid-catalyzed conversions of alcohols to alkyl halides proceed through the formation of carbocations. Primary alcohols and methanol react to form alkyl halides under acidic conditions by an SN2 mechanism.

Not all acid-catalyzed conversions of alcohols to alkyl halides proceed through the formation of carbocations. Primary alcohols and methanol react to form alkyl halides under acidic conditions by an SN2 mechanism.

In these reactions the function of the acid is to produce a protonated alcohol. The halide ion then displaces a molecule of water (a good leaving group) from carbon; this produces an alkyl halide:

Again, acid is required. Although halide ions (particularly iodide and bromide ions) are strong nucleophiles, they are not strong enough to carry out substitution reactions with alcohols themselves. Direct displacement of the hydroxyl group does not occur because the leaving group would have to be a strongly basic hydroxide ion:

We can see now why the reactions of alcohols with hydrogen halides are acid-promoted.

Carbocation rearrangements are extremely common in organic chemistry reactions are are defined as the movement of a carbocation from an unstable state to a more stable state through the use of various structural reorganizational "shifts" within the molecule. Once the carbocation has shifted over to a different carbon, we can say that there is a structural isomer of the initial molecule. However, this phenomenon is not as simple as it sounds.

- BRAINLIEST answerer

Answer:

4g/cm cubed

Explanation:

density=mass/volume

d=24/6

d=4

The Whole Electrical Bonding Investigation Plan Quick check

1) B. boiling point, surface tension, vapor pressure

2) A. glycerin

3) C. the temperature at which additional heat energy causes the substance to change from a liquid to a gas

4) D. Heat each substance in liquid form to its boiling point. Measure the temperature of each substance

5) A. A liquid boils when the vapor pressure equals the atmospheric pressure.

The substance with the strongest electrostatic force has been Glycerin.

The boiling point has been the temperature required for the conversion of the liquid phase to the gaseous phase. The boiling point has been dependent on the intermolecular forces between the molecule.

The molecule with the higher interactions have a higher boiling point, and the molecules with the weaker interaction forces have a lower boiling point.

Among the given compounds, Glycerin has been the compound with the highest boiling point, thus the interactions within the glycerin molecules have been the greatest.

For more information about electrostatic interaction, refer to the link:

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Explanation:

Hence an atom is made up of three particles called electrons, protons and neutrons and 1 mol exactly contains 6.02214076×1023 atoms or particles. Thus 2.11×1024 atoms are present in 3.5 mol of arsenic.

a) The balanced equation for the reaction would be as follows:

[tex]2 Al(OH)_3 + 3 H_2SO_4 ---> Al_2(SO_4)_3 + 6 H_2O[/tex]

b) The mole ratio of aluminum hydroxide to sulfuric acid is 2:3. This means that every 1 mole of the aluminum hydroxide would require 1.5 moles of sulfuric acid.

0.5 mole aluminum hydroxide would require:

         0.5 x 3/2 = 0.75 moles of sulfuric acid.

But only 0.500 moles of sulfuric acid is present. Thus, the limiting reagent is sulfuric acid.

c) With 0.5 moles sulfuric acid, the mole of aluminum hydroxide required would be:

             0.5 x 2/3 = 0.33

Excess moles of aluminum hydroxide = 0.5 - 0.33

                                                              = 0.17 moles

d) The mole ratio of sulfuric acid to aluminum sulfate produced is 3:1. With 0.5 moles sulfuric acid, the mole of aluminum sulfate produced would be:

        0.5 x 1/3 = 0.17 moles

But the percentage yield is 77%

   77/100 x 0.17 = 0.13 moles

Thus, the moles of aluminum sulfate that would be obtained with a percentage yield of 77% would be 0.13 moles.

More on stoichiometric calculations can be found here: https://brainly.com/question/8062886

Answer:

Protons, Atomic number

Answer:

A, drawing a conclusion

Explanation:

Answer:

True

Genes providing resistance to antibiotics will provide an organism protection against the antibiotics, which are used to kill it, therefore it is indeed an advantage for their survival

All the participants in the Genius Dog Challenge are Border Collies, which some experts believe to be the intelligent breed of dog.

Border Collie is the name of a breed of dog that is characterized by:

Border Collies have physical characteristics such as:

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Explanation:

ano po topic nyo para maayos sagut

It's condensation in which gas particles have a higher kinetic energy..