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kolbaska11 [484]
1 year ago
6

Through what process do all stars produce their energy?

Chemistry
1 answer:
Deffense [45]1 year ago
5 0

nuclear fusion

Stars produce their energy through nuclear fusion. For most stars, this process is dominated by a process called the "proton-proton chain," a sequence of events that transforms four hydrogen atoms into one helium atom.

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Complete and balance the equation for the reaction of sodium with water.<br> Na+_H2O+ H2
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2Na + 2H2O → 2NaOH + H2

The balanced equation

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Jonas mixes citric acid with baking soda. How does he know the reaction is endothermic?
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D. The temperature of the the solution increases

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How many grams of water contain 2.50 x 10^24 atoms of hydrogen?
Mama L [17]

The mass of water that contains 2.5×10²⁴ atoms of Hydrogen is 74.79 g

<h3>Avogadro's hypothesis </h3>

From Avogadro's hypothesis,

6.02×10²³ atoms = 2 g of H

Therefore,

2.5×10²⁴ atoms = (2.5×10²⁴ × 2) / 6.02×10²³

2.5×10²⁴ atoms = 8.31 g of H

<h3>How to determine the mass of water </h3>
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2 g of H is present in 18 g of water.

Therefore,

8.31 g of H will be present in = (8.31 × 18) / 2 = 74.79 g of water.

Thus, 2.5×10²⁴ atoms of Hydrogen is present in 74.79 g of water.

Learn more about Avogadro's number:

brainly.com/question/26141731

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