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3 years ago

Which statement best describes why carbon can form a wide variety of organic compounds?

2 answers:

7 0

Carbon can form a wide variety of organic compounds because:

Each carbon atom covalently bonds with toms of carbon, hydrogen oxygen, and nitrogen

A carbon atom can have 4 single valence electrons around it. This allows it to form covalent bonds with many different atoms.

adell [148]3 years ago

3 0

B) <span>Each carbon atom covalently bonds with atoms of carbon, hydrogen, oxygen, and nitrogen</span>

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What is the total number of sublevels in the fourth principal energy level

Yuki888 [10]

The answer is 4. It can hold 4 sublevels as s.p,d,f and it holds 32 electrons

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4 years ago

In a hydrogen molecule, the two hydrogen atoms are held together by a single bond with a bond energy of 436 kj/mol of hydrogen.

svetoff [14.1K]

Answer: 873 kJ of energy will be required to break two moles of hydrogen gas.

$2H_2+O_2\rightarrow 2H_2O$

Above chemical equation shows that two moles of hydrogen gas is reacting with one mole of oxygen gas to give two mole of water molecule.

Bond energy of H-H = 436kJ

According to reaction we have two moles hydrogen,so energy required to break the

H-H bond in two moles of hydrogen gas will be:

$2\times \text{bond energy of H-H bond}$

$2\times {436}$ = 872kJ

872kJ of energy will be required to break H-H bond in two moles of hydrogen gas.

5 0

4 years ago

Read 2 more answers

How many protons does an atom of sulfur have?<br> How many electrons does an atom of sulfur have?

shutvik [7]

Answer:

Protons = 16

Electrons = 16

3 0

3 years ago

Read 2 more answers

The attractive forces between sodium and chloride ions are called:

Vedmedyk [2.9K]

Dipole-dipole forces are probably the simplest to understand. You probably already know that in an ionic solid like NaCl, the solid is held together by Coulomb attractions between the oppositely-charges ions. The Na+ and Cl- ions alternate so the Coulomb forces are attractive

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3 years ago

The equilibrium reaction below has the Kc = 0.254 at 25°C. If the temperature of the system at equilibrium is decreased to 0°C,

tia_tia [17]

Answer:

The equilibrium shifts towards reagents

Explanation:

Is known $Kc=\frac{[products]}{[reagents]}$ rised to the power of their number of moles in the balanced reaction. When you have a system at equilibrium with Kc < 1, it means [products] < [reagents] and the system needs energy to react, so if you decrease tempeture the equilibrium shifts towards reagents and less products will be created.

This efect can be discribed with Van´t Hoff equation: $ln(\frac{K1}{K2}) =-\frac{dH}{R} (\frac{1}{T1} -\frac{1}{T2} )$ where we can see that if we decrease temperature (this is T2<T1) in consecuense K2<K1 and reaction doesn´t happen.

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3 years ago