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shtirl [24]
3 years ago
15

a chemist needs to make 1000mL of a 30% alcohol solution by mixing 25% and 55% solution. How much of each should she use?

Chemistry
1 answer:
babymother [125]3 years ago
3 0
Calculate the area circle.Round your answer to the nearest hunderdth
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What is different about the rotation of Uranus?
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Answer:

Unlike the other planets of the solar system, Uranus is tilted so far that it essentially orbits the sun on its side, with the axis of its spin nearly pointing at the star. This unusual orientation might be due to a collision with a planet-size body, or several small bodies, soon after it was formed.

Explanation:

the axis is vertical

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Which property of gases allows them to be stored at high concentrations in a bottle
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2 years ago
What is the general formula for cycloalkenes.
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C( n)H(2n) is the general formula, eg: Cyclohexane is C6H12
3 0
2 years ago
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A ninja motorbike travelling at 55 m/s takes 10 sec to come to rest . What is its deceleration rate ?
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5 0
2 years ago
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Given LiCl, NaCl, KCl, MgCl2, and SrCl2, arrange the compounds in order of increasing lattice energy.
Oksanka [162]

Answer:-  KCl

Explanations:- Lattice energy depends on two factors, charge and size.

High charge and small size gives higher lattice energy where as low charge and bigger size gives lower lattice energy.

in LiCl, NaCl and KCl, the anion is same and also the charges for Li, Na and K are also same. The deciding factor here is the size of cations. Since the size increases as we move down a group, the order of size of these three atoms is Li<Na<K.

The order of lattice energy is exactly opposite as it's increases as the size decreases.

Now, if we look at magnesium chloride and strontium chloride then again the anion is common but the metals have higher charge as compared to the alkali metals(Li, Na and K). So, lattice energy values must be higher for these two compounds. If we compare Mg and Sr then size of Mg is smaller and so the lattice energy would be greater for this.

Hence, the increasing order of lattice energy is KCl .

4 0
3 years ago
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