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goldenfox [79]
3 years ago
7

What two nuclei are fused in the main fusion reaction of the sun? A. helium and helium B. helium and thorium C. hydrogen and hel

ium D. hydrogen and hydrogen
Chemistry
2 answers:
butalik [34]3 years ago
8 0
C. hydrogen and helium
Vlada [557]3 years ago
8 0
D. Hydrogen and hydrogen
2 hydrgen nuclei fuses to form one helium

Hope it helped!
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Calculate the frequency of electromagnetic wave with the wave length 344nm ( hint: use dimensional analysis)
Svetlanka [38]
Frequency = speed of light
                      ---------------------------
                        wavelength 
 
                   =        3 x 10^8
                      ------------------------
                          344 x 10^-9
 
                   =          8.72 x 10^14 Hz.

Hope this helps!



5 0
3 years ago
A ball is thrown at a reflecting surface (mirror) as shown. A video camera is placed in line with the reflected path of the ball
Oksanka [162]

Explanation:

The video camera will record

A ball moving towards the camera, initially faster and then slower.  

5 0
3 years ago
Which would most likely be joined by an ionic bond?
KATRIN_1 [288]
An ionic bond is composed of a cation and anion, which are charged ions. You cannot have atoms with ionic bonds, because there is no opposite attraction between charges due to atoms having a net nuclear charge of zero. Therefore, a cation and anion would most likely be joined by an ionic bond.
3 0
3 years ago
I need help solving this!
zmey [24]

Answer: Moles of hydrogen required are 4.57 moles to make 146.6 grams of methane, CH_{4}.

Explanation:

Given: Mass of methane = 146.6 g

As moles is the mass of a substance divided by its molar mass. So, moles of methane (molar mass = 16.04 g/mol) are calculated as follows.

Moles = \frac{mass}{molar mass}\\= \frac{146.6 g}{16.04 g/mol}\\= 9.14 mol

The given reaction equation is as follows.

C + 2H_{2} \rightarrow CH_{4}

This shows that 2 moles of hydrogen gives 1 mole of methane. Hence, moles of hydrogen required to form 9.14 moles of methane is as follows.

Moles of H_{2} = \frac{9.14}{2}\\= 4.57 mol

Thus, we can conclude that moles of hydrogen required are 4.57 moles to make 146.6 grams of methane, CH_{4}.

5 0
3 years ago
Facing the wind. A) windward B) subaric C) monsoon D) biotic
SpyIntel [72]
I think B
STEP-by STEP EXPLANATION
8 0
2 years ago
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