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bonufazy [111]
3 years ago
9

Question 7 (1 point)

Chemistry
2 answers:
Fittoniya [83]3 years ago
7 0

Answer:

i think it is A

Explanation:

Alisiya [41]3 years ago
4 0

Answer:

B.

Explanation:

Tidal energy is the form of hydropower that converts the energy obtained from tides into useful forms of power.

You might be interested in
Watch the animation and identify the correct conditions for forming a hydrogen bond. check all that apply. check all that apply.
OLga [1]
The ch4 molecule exhibits hydrogen bonding.
This statement is false. A CH4 molecule do not have a hydrogen bonding instead it has dipole dipole attraction.

Hydrogen bonding occurs when a hydrogen atom is covalently bonded to an N, O, or F atom.
This would be a true statement. A hydrogen bond is present when an atom of hydrogen shares electrons with O, N or F atom.

A hydrogen bond is equivalent to a covalent bond.
This is a false statement. A hydrogen bond is an intermolecular force of attraction while covalent bond is a intramolecular force. So, they would mean different things.

a hydrogen bond is possible with only certain hydrogen-containing compounds.
This would be true. Without the presence of an hydrogen atom definitely there would be no hydrogen bond.

a hydrogen atom acquires a partial positive charge when it is covalently bonded to an f atom.
This would be true since a HF is a polar molecule.
6 0
4 years ago
Read 2 more answers
Equation is balanced already
mojhsa [17]

Answer:

1.) 13 g C₄H₁₀

2.) 41 g CO₂

Explanation:

To find the mass of propane (C₄H₁₀) and carbon dioxide (CO₂), you need to (1) convert mass O₂ to moles O₂ (via molar mass), then (2) convert moles O₂ to moles C₄H₁₀/CO₂ (via mole-to-mole ratio from equation coefficients), and then (3) convert moles C₄H₁₀/CO₂ to mass C₄H₁₀/CO₂ (via molar mass). It is important to arrange the ratios in a way that allows for the cancellation of units. The final answers should have 2 sig figs to match the sig figs of the given value.

Molar Mass (C₄H₁₀): 4(12.011 g/mol) + 10(1.008 g/mol)

Molar Mass (C₄H₁₀): 58.124 g/mol

Molar Mass (CO₂): 12.011 g/mol + 2(15.998 g/mol)

Molar Mass (CO₂): 44.007 g/mol

Molar Mass (O₂): 2(15.998 g/mol)

Molar Mass (O₂): 31.996 g/mol

2 C₄H₁₀ + 13 O₂ ----> 8 CO₂ + 10 H₂O

 48 g O₂             1 mole             2 moles C₄H₁₀            58.124 g
---------------  x  -----------------  x  -------------------------- x  ------------------  =  
                         31.996 g              13 moles O₂               1 mole

=  13 g C₄H₁₀

 48 g O₂             1 mole               8 moles CO₂            44.007 g
---------------  x  -----------------  x  -------------------------- x  ------------------  =  
                         31.996 g              13 moles O₂               1 mole

=  41 g CO₂

6 0
2 years ago
Which provides evidence to support the big bang theory?
Stolb23 [73]
A<span>. </span>
<span>the change in carbon dioxide levels in the atmosphere 
</span>
hope that's right and hope i helped




6 0
3 years ago
At which temperature is the average kinetic energy of the molecules in one liter of nitrogen gas greatest? A) -40 degrees C B) 2
Yanka [14]

D) 60°C

Explanation:

The molecules of Nitrogen gas will have the highest average kinetic energy when their temperature is the highest.

According the kinetic molecular theory, the temperature of gases is directly proportional to their average kinetic energy.

 The higher the temperature, the more kinetic energy they possess.

To find out the highest temperature from the given options, we need to solve and express all the given options in a single unit of temperature.

 K = 273 + °C

Let us convert all to Kelvin;

 -40°C;

       K = 273 + (-40) = 233K

 60°C;

       K = 273 + 60  = 333K

We can see that 60°C has the highest temperature in kelvin and this will furnish the gas with the greatest average kinetic energy.

learn more:

kinetic molecular theory brainly.com/question/12362857

#learnwithBrainly

8 0
3 years ago
What is the chemical formula for nitrogen monoxide?
vekshin1

Answer: the formula is NO

8 0
2 years ago
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