What are the characteristics of a substance in the liquid state?
2 answers:
Answer: <span>Made up of particles packed relatively close together, having an indefinite shape but a definite volume
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Start by thinking about how you know a liquid works. For example, think about water. Water you can pour into a cup and it takes the shape of that cup. Pour into a bowl and it takes the shape of the bowl. That means it, unlike a solid, doesn't have a definite shape/has an indefinite shape. You can rule out the first choice.
Also notice that water must have a definite volume. You can't have more water in the cup one second, and less the next second. The volume/space it takes up remains the same. This is unlike a gas, which can spread out or be compressed. That means you can eliminate the last two choices, making B the correct answer.
Chemically speaking, the particles of liquids are close together, but not packed tightly as in a solid (see picture). The electrons and protons make up the atom, but are microscopic. </span><span>
</span>
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Start by thinking about how you know a liquid works. For example, think about water. Water you can pour into a cup and it takes the shape of that cup. Pour into a bowl and it takes the shape of the bowl. That means it, unlike a solid, doesn't have a definite shape/has an indefinite shape. You can rule out the first choice.
Also notice that water must have a definite volume. You can't have more water in the cup one second, and less the next second. The volume/space it takes up remains the same. This is unlike a gas, which can spread out or be compressed. That means you can eliminate the last two choices, making B the correct answer.
Chemically speaking, the particles of liquids are close together, but not packed tightly as in a solid (see picture). The electrons and protons make up the atom, but are microscopic. </span><span>
</span>
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<span>4NH</span>₃<span> + 6NO → 5N</span>₂<span> + 6H</span>₂<span>O
mol of NO = </span>
=
= 0.93 mol
Based on the balance equation mole ratio of NH₃ : NO is 4 : 6
= 2 : 3
If mol of NO = 0.93 mol
then mol of NH₃ =
= 0.62 mol
Mass of ammonia = mol × molar mass
= 0.62 mol × 17.03 g/mol
= 10.54 g
Therefore B is the best answer
mol of NO = </span>
=
= 0.93 mol
Based on the balance equation mole ratio of NH₃ : NO is 4 : 6
= 2 : 3
If mol of NO = 0.93 mol
then mol of NH₃ =
= 0.62 mol
Mass of ammonia = mol × molar mass
= 0.62 mol × 17.03 g/mol
= 10.54 g
Therefore B is the best answer