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AURORKA [14]
3 years ago
8

Write the formula unit equation for this reaction occurring in water: Potassium sulfate and barium chloride are mixed to form po

tassium chloride and barium sulfate.
1. K2SO4 (s) + BaCl2 (s) → 2 KCl (aq) + BaSO4 (s)
2. K2SO4 (aq) + BaCl2 (aq) → 2 KCl (aq) + BaSO4 (s)
3. 2 K3SO4 (aq) + 3 BaCl2 (aq) → 6 KCl (aq) + 2 Ba3(SO4)2 (s)
Chemistry
1 answer:
gayaneshka [121]3 years ago
6 0

Answer: option 2.

K2SO4 (aq) + BaCl2 (aq) → 2 KCl (aq) + BaSO4 (s)

Explanation:

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An 8 oz serving of whole milk has 8.0 g of fat, 8.0 g of protein, and 13 g of carbohydrates. Approximately how many kilocalories
dsp73
<h3>Answer:</h3>

156 calories

<h3>Explanation:</h3>
  • Carbohydrates, proteins and fats are food substances used by living organisms to generate energy required for the day to day activities.
  • They supply energy which differs per gram for each food substance.
  • That is;

1 g of carbohydrate = 4 calories

1 g of fat = 9 calories

1 g of protein = 4 calories

Therefore, whole milk serving containing 8.0 g of fat, 8.0 g of protein and 13 g of carbohydrates will contain the following number of calories;

8.0 g of fat = 8 g × 9 cal/g = 72 calories

8.0 g of protein = 8 g × 4 cal/g = 32 calories

13 g of carbohydrates = 13 g × 4 cal/g = 52 calories

Total amount of energy = 156 calories

Therefore, an 8 oz serving of whole milk contains 156 calories

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What type of crystals does iodine, dry ice (CO2) , ice and plastic form?
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Molecular crystals does iodine, dry ice (CO2) , ice and plastic form. It is becuase<span> is that all four are made of nonmetal elements.Which implies any compounds are made up of molecule.</span>
4 0
3 years ago
Which type of solid can be described by the unknown solid if it has the properties listed in the table below?
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Answer:

Described down below.

Explanation:

Hello,

- Boyle's law: correlation between pressure and volume (assuming temperature and amount of gas remain constant). One common use of Boyle’s law is to predict the new volume of a gas when the pressure is changed (at constant temperature), or vice versa

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- Avogadro's law: correlation between amount of gas and volume (assuming temperature  and pressure p remain constant). As an example, since we can blow up a basketball, we are adding more gas molecules into it. The more gaseous molecules, the greater the volume.

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Best regards.

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