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bixtya [17]
2 years ago
9

Which group of measurements is the most precise? (Each group of measurements is for a different object.)

Chemistry
1 answer:
JulijaS [17]2 years ago
3 0

Answer:

rytetrttrrtrt

Explanation:rtyty

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Question#31-32, I not sure and don’t know how to do,
LUCKY_DIMON [66]

Answer: 30. 7 moles SO3

31. 3 moles SO2 and 3 moles SO3

Explanation: To solve for this problem use the mole ratio of the substances involved in the reaction.

Solution for number 30:

3.5 moles O2 x 2 moles SO3 / 1 mole O2

= 7 moles SO3

31. 192 g SO2 x 1 mole SO2 / 64 g/ mol SO2

= 3 moles SO2

3 moles SO2 x 2 moles SO3 / 2 moles SO2

= 3 moles SO3

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3 years ago
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Explanation:

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8 0
3 years ago
​what is the energy density of hard-boiled egg weighing 50 grams and delivering 78 kcalories?
ipn [44]
The energy density is calculated by dividing the energy given by the mass of the material. From this item, the energy is 78 kcal and the mass is 50 grams. Performing the operation will give us an answer of 1.56 kcal/grams. 
8 0
4 years ago
What are the three major types of water pollutants? Name and describe a few examples for each one.
andrew11 [14]

Answer:

b

Explanation:

8 0
3 years ago
What is the name of the compound NiSO4 • 5H2O?
Minchanka [31]
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6 0
3 years ago
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