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Viefleur [7K]
2 years ago
12

Which of the following statements are correct? More than one answer may be correct.

Chemistry
1 answer:
garri49 [273]2 years ago
4 0

Answer:

E, only one statement is correct

Explanation:

Absorption is favoured by heating the solution containing the colored impurity.

Pleaseee! Mark me brainliest

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Answer:

Its a 50% chance of it happeing

Explanation:

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3 years ago
The coordination number of cation and anion in fluorite CaF2 and antifluorite Na2O are respectively​
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3 years ago
how many grams of calcium chloride can be prepared from 60.4 G of calcium oxide and 69.0 G of hydrochloric acid and a double dis
Ksenya-84 [330]
Balanced equation: 
<span>CaO + 2 HCl --> CaCl2 + H2O </span>
<span>Calculate moles of each reactant: </span>
<span>60.4 g CaO / 56.08 g/mol = 1.08 mol CaO </span>
<span>69.0 g HCl / 36.46 g/mol = 1.89 mol HCl </span>

<span>Identify the limiting reactant: </span>
<span>Moles CaO needed to react with all HCl: </span>
<span>1.89 mol HCl X (1 mol CaO / 2 mol HCl) = 0.946 mol CaO </span>
<span>Because you have more CaO than that available, HCl is the limiting reactant. </span>

<span>Calculate moles and mass CaCl2: </span>
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8 0
3 years ago
How does the arrangement of particles determine the physical properties of different states of matter?​
Usimov [2.4K]

Answer:

See explanation

Explanation:

Matter may exist in three phases; solid, liquid and gas. The state in which matter exists depends on the extent of intermolecular forces operating in the substance.

In solid particles, the molecules that compose the solid are close together because the molecules of a solid do not move from place to place but they continue to vibrate about their fixed position.

For liquids, the molecules that compose a liquid are in random motion but are less energetic than molecules of a gas.

In gases, the molecules are not held together at all. The molecules of a gas have the highest degree of freedom. They move from one point another at a high velocity.

Hence, the order of increasing degree of movement of the particles in different states of matter = solids<liquids< gases.

Solids have well arranged particles, the molecules of a liquid are a little more disorderly than liquid particles while gas particles are the most disorderly of all the states of matter.

6 0
2 years ago
The concentration of a salt solution in terms of mass by mass percentage is 20% and the mass of the solution is 500g determine t
marin [14]
100 grams of solute would be present as 20% of 500 is 100
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3 years ago
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