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Dimas [21]
3 years ago
9

Which is the best example of how electromagnetic energy is used in everyday life?

Chemistry
2 answers:
lapo4ka [179]3 years ago
4 0

Answer:

b

Explanation:

bc i know it is

myrzilka [38]3 years ago
3 0

Answer:

b

Explanation:

EDG 2020 ur welcome 100 percent sure

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Sodium chloride or table salt is a compound formed when sodium loses its valence electron to chlorine. Which type of bond format
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When Sodium chloride or table salt is a compound formed when sodium loses its valence electron to chlorine, the type of bond formation that takes place in sodium chloride is the Lewis Bond.

8 0
3 years ago
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About 5% of high school seniors reportmisusing prescription
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ella [17]
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Calculate the pH of a buffer solution prepared by mixing 60.0 mL of 1.00 M lactic acid and 25.0 mL of 1.00 M sodium lactate.
marshall27 [118]
This problem could be solved easily using the Henderson-Hasselbach equation used for preparing buffer solutions. The equation is written below:

pH = pKa + log[(salt/acid]

Where salt represents the molarity of salt (sodium lactate), while acid is the molarity of acid (lactic acid). 

Moles of salt = 1 mol/L * 25 mL * 1 L/1000 mL = 0.025 moles salt
Moles of acid = 1 mol/L* 60 mL * 1 L/1000 mL = 0.06 moles acid
Total Volume = (25 mL + 60 mL)*(1 L/1000 mL) = 0.085 L

Molarity of salt = 0.025 mol/0.085 L = 0.29412 M
Molarity of acid = 0.06 mol/0.085 L = 0.70588 M

Thus,
pH = 3.86 + log(0.29412/0.70588)
pH = 3.48
4 0
3 years ago
Why is salt a mineral
shutvik [7]
Salt is a mineral composed primarily of sodium chloride (NaCl), a chemical compound belonging to the larger class of salts; salt in the form of a natural crystalline mineral is known as rock salt or halite. ... Salt is essential for life in general, and saltiness is one of the basic human tastes
8 0
2 years ago
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