4. How many moles are in 54.0 grams of Silver?54.0 g Ag x (108mol ag /1 g ag ) = 5,832 ag moles Ag

(Use the gray boxes to insert the values for the conversion factors.)

5. What is the mass of 6.3 moles of Sulfur?

6.3 mol S x ( / ) = g S

6. How many atoms are in 6.0 moles of Argon?

6.0 mol Ar x ( / ) = atoms of Ar

7. How many moles of Kr are in 112 g of Krypton?

112 g Kr x ( / ) = moles of Kr

8. How many moles are in 1.93 x1024 formula units of KF, potassium fluoride?

1.93 x1024 formula units x ( / ) = mol KF

(The next two problems need 2 step conversions - so there are two conversion factors (fractions) for the problem - remember the mole map - covert to moles first, then to the desired unit.)

9. How many atoms are in 86.2 g of Si (silicon)?

86.2 g Si x ( / ) x ( / ) = atoms of silicon

10. What is the mass in grams of 4.8 x 1024 atoms of Magnesium?

4.8 x 1024 atoms of Mg x ( / ) x ( / ) = g Mg

Answers

Answer 1
Answer: 4. Molar mass of silver m Ms~=108 g/mol
Hence there are n=54*(1/108)=0.5 mols of Silver in 54 grams of Silver.

5. 6.3*(108/1)=680.4g

6. Avogadro's number : Na~=6.022×10^23
6.0*(6.022*10^23/1)=36.132*10^23 atoms

7. Molar mass of Krypton : Mk=84 g/mol
112/84=1.33 moles of Kr

8. 1.93*10^24*(1/(6.022×10^23))=3.2 moles KF

9. Molar mass of Silicon : Ms=28 g/mol
86.2*(1/28)*(6.022×10^23/1)=18.5*10^23 atoms of silicon

10. Molar mass of Magnesium : M1=24 g/mol
4.8*10^24*(1/(6.022×10^23))*(24/1)=191 g Mg

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The force most responsible for holding the nucleus of an atom together is the:

Answers

Strong nuclear force. I think that's the one one that holds the nucleons together.

The carbon cycle involves an exchange of carbon between ___ a. the geosphere and atmosphere
b. the atmosphere and hydrosphere
c. the geosphere and hydrosphere
d. the geosphere, hydrosphere, and atmosphere

Answers

Answer:

D) The geosphere, hydrosphere, and atmosphere

Explanation:

During the carbon cycle, various processes move carbon from the geosphere to the atmosphere such as volcanic eruptions release carbon dioxide from molten rock beneath the earth's surface to the atmosphere. Carbon can leave the soil through soil respiration which releases CO2, or by erosion  which can carry it into rivers or the ocean, where it then enters the hydrosphere. Carbon is found in the hydrosphere dissolved in ocean water and lakes and hence the cycle continues.

The carbon cycle is the biogeochemical cycle which involves an exchange of carbon among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth.

Carbon is the most important component of the biological compounds  such as limestone. Also, during soil respiration, Carbon can leave the soil through it which releases CO_(2),  which carries it into the rivers or the ocean, where it then enters the hydrosphere.

Thus, option D is correct.

The two factors that affect the magnitude of the force are

Answers

The two factors that affect the magnitude of the force are magnitude of force and distance of line of action of force.

What is force?

Force is defined as a cause which is capable of changing the motion of an object. It can cause an object which has mass to change it's velocity. It is also simply a push or a pull . It has both magnitude as well as direction.Hence, it is a vector quantity.

It has SI units of Newton and is represented by'F'.Newton's second law states that force which acts on an object is equal to momentum which changes with time. If mass of object is constant, acceleration is directly proportional to net force acting on an object.

The concepts which related to force are thrust and torque .Thrust increases the velocity of an object and torque produces change in rotational speed of an object.

Learn more about force,here:

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The strength of the gravitational force between two objects depends on two factors, mass and distance.

Rule 2: hydrogen ---ate becomes ____________ acid

Answers

Answer:

Binary Acid

Explanation:

But an acid with 2 hydrogens is called polyprotic acid

as electrons are passed through the system of electron carriers associated with photosystem ii, they lose energy. what happens to this energy?

Answers

they break up and become only positive energy

In an atom: The nucleus is made of electrons and protons. Protons have positive charges. Neutrons have negative charges. All of the above.

Answers

Answer: (b) protons have positive charges