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We know, molecular mass of sucrose is 342 g/mol.

So, number of moles in 18 g is :

[tex]n_1 = \dfrac{342\ g/mol}{18\ g}\\\\n_1 = 0.053 \ moles[/tex]

Also, number of moles of water is :

[tex]n_2 = \dfrac{180}{18} \\\\n_2 = 10 \ moles[/tex]

We know, 1 mole of sucrose contain 11 moles of oxygen.

So,

[tex]n' = 0.053\times 11\\\\n'= 0.583\ moles[/tex]

1 mole of water contain 1 mole of oxygen .

So, moles of oxygen in water are :

[tex]n'' = 10\ moles[/tex]

Total number of moles, [tex]n' + n'' = 10.583 \ moles[/tex] .

Number of oxygen atoms are :

[tex]N = 6.022 \times 10^{23}\times 10.583\\\\N = 6.37 \times 10^{24}[/tex]

Hence, this is the required solution.

Answer:

the molecules are tightly bound together, making it easy for electric currents to jump from one molecule to the next.

Explanation:

Answer:

They are good conductors of thermal energy because their delocalised electrons transfer energy.  The close packing of the metal ions in the lattice. the delocalised electrons can carry kinetic energy through the lattice.

Explanation:

At sunset the light from the sun grazes across the surface of the earth, passing through a long column or pathlength of atmosphere. During its passage through the atmosphere the blue components of the light are reduced in intensity, making the transmitted beam of sunlight more yellow or even red in color.

hope this helps ^^

Answer:

Here ya go ;)

Small particles of dust and pollution in the air can contribute to (and sometimes even enhance) these colors, but the primary cause of a blue sky and orange/red sunsets or sunrises is scattering by the gas molecules that make up our atmosphere. ... In this way, clouds act as a screen on which nature's colors are painted.

Answer:

0.087 moles of water

Explanation:

Given data:

Number of molecules of water = 5.24×10²² molecules

Number of moles of water = ?

Solution:

The given problem will solve by using Avogadro number.

1 mole = 6.022 × 10²³ molecules of water

5.24×10²² molecules × 1 mol / 6.022 × 10²³ molecules

0.87×10⁻¹ mol

0.087 mol

Avogadro number:

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

Answer:

C - apparent magnitude

Explanation:

Answer:

the answer would be 11 grams of water/sugar water

Explanation: its that because 11 grams plus 1 gram = 11 grams

even though it may seem it may just go away that mass has to go somewhere it just doesn't vanish from the earth.

Answer:

When a conversion is necessary, the appropriate conversion factor to an equal value must be used. For example, to convert inches to feet, the appropriate conversion value is 12 inches equal 1 foot. To convert minutes to hours, the appropriate conversion value is 60 minutes equal 1 hour

Explanation:

hope this helps have a good night/day :) ❤

(({Multiple choice for my review but NOT THE ANSWER FOR THIS QUESTION:

provides a type of adaptive immunity

injects a weakened or inactive form of a virus into the body

must be given on a regular basis from birth to 18 years of age.                

People with my review please note that it doesn't have to be given on a regular basis. I grew up just fine without one every so often.}))

Answer:

Explanation:

Inclined Plane: Easy Lifting. An inclined plane is simply an even, sloping surface. ...

Wedge: Splitting and Separating. ...

Screw: Fastening and Moving. ...

Lever: Multiplying Force. ...

Wheel and Axle: Rolling. ...

Pulley: Hoisting Heavy Loads. ...

Scissors: Making the Cut. ...

Hand Truck: Mover's Friend.

Answer:

B is because their not combined

Answer:

tru it's B

Explanation:

give the person above me brainliest if u want

it is 2.1 that it is his w ga hshshwu

Answer:

yes

Explanation:

Answer:

A

Explanation:

Answer:

the action or process of filtering something. hope this helps :D

Answer:

Blue is the metal Metals react by losing electrons from the outermost shell, which means their outermost electrons and now closer to the nucleus (one shell lower) and thus they get smaller when you go from metal atom to metal ion.

Explanation:

Answer:

The person who just wanted points is annoying

Explanation:

WHY WOULD YOU DO THAT

Answer:

B and C look blue therefore they are hot but A and C look big

The appearance of the three stars is compared by their colors and sizes.

In the image you can see the stars of the constellation Orion.

According to the above, it can be inferred that the three stars differ in their colors and sizes. Their colors can be determined by the chemical composition of them, while their sizes by the distance that separates them from the Earth, making the farthest ones look smaller and the closest ones, bigger.

Learn more in: https://brainly.com/question/13387637

Answer:

Hope it helps!

Explanation:

Air molecules are too far to disperse heat energy to one another efficiently. Heat is conducted by molecules and atoms that are very closely bonded together and vibrating at high frequency.

Answer:

The balanced chemical reaction is written as follows:

bacl2 + na2so4 → baso4 + 2nacl

Therefore, the number of chlorine atoms in the reactants side and the products side would be 2 atoms in both sides which should be the case because the number of atoms in each side should have the same number.

Explanation:

Internet

Single replacement/displacement

Given

Type involves free element

Required

Type of reaction

Solution

Single replacement/displacement occurs when a more active element replaces another less active element in the compound to form a new compound

The activity of this element can be seen from the voltaic series

Li-K-Ba-Ca-Na-Mg-Al-Mn- (H2O) -Zn-Cr-Fe-Cd-Co-Ni-Sn-Pb- (H) -Cu-Hg-Ag-Pt-Au  

The more to the left, the element is more reactive (easily release electrons) and the stronger reducing agent  

The general formula for single replacement :

A + BC ⇒ AC + B

From this general formula shows that there are 2 free elements on both sides (reactants and products)

Answer

Boils at -223 degree C

Explanation:

Because gas doesn't have any boiling points

Answer:

Half-life = 28.8 years

Explanation:

The radioactive decay of an atom follows the equation:

Ln[A] = -kt + ln[A]₀

Where [A] is actual amount of isotope after time t; k is decay constant and [A]₀ initial amount of isotope

Solving for k:

Ln[0.393g] = -k*10yrs + ln[0.500]

-0.2408 = -k*10yrs

0.02408yrs⁻¹ = k

Half-life, is:

Half-life = ln 2 / k

Half-life = ln 2 / 0.02408yrs⁻¹

Half-life = 28.8 years

The isotope [tex]38Sr^{90}[/tex] is one of the extremely hazardous species in the residues from nuclear power generation. The strontium in a 0.500-g sample diminishes to 0.393 g in 10.0 yrs, the half-life is - 28.78

Formula:

radioactive decay follows first-order kinetics,  

k = [tex]\frac{1}{t}ln\frac{a}{x}[/tex]

Given:  

a = initial amount = 0.5 g  

x = amount of isomer after 10 years = 0.393 g  

t= time   = 10 years

Solution:  

k =  [tex]\frac{1}{10}ln\frac{0.5}{0.393}[/tex]

   = 0.02408  

k = [tex]\frac{0.693}{t/2}[/tex]  

T(1/2) = half-life time

= [tex]\frac{0.693}{k}[/tex]

=   [tex]\frac{0.693}{0.02408}[/tex]

= 28.78 years.

Thus, The isotope [tex]38Sr^{90}[/tex] is one of the extremely hazardous species in the residues from nuclear power generation. The strontium in a 0.500-g sample diminishes to 0.393 g in 10.0 yrs, the half-life is - 28.78

Learn more:

https://brainly.com/question/1160651

are hydrogen atoms which have lost protons

Answer:

three chlorine atoms

Explanation: