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UNO [17]
3 years ago
10

The density of a substance is the ratio of its mass to its volume. The formula for density is: D = mass/volume. If the density a

nd the volume of a liquid are known, its mass can be found by
a .adding its density to its volume
b .dividing its density by its volume
c. multiplying its volume and density
d. subtracting density from its volume
Chemistry
1 answer:
salantis [7]3 years ago
5 0

Answer:

I think it's B.

Explanation:

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In which chemical system is molecule to ion attractions present? A) KNO3(s) B) KNO3(l) C) KNO3(aq) D) KNO3(g)
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Answer:

KNO_3 (aq)

Explanation:

Potassium nitrate is a soluble salt which readily dissolves in a polar solvent, such as water. When solid potassium nitrate is dissolved in water, it dissociates into potassium cations and nitrate anions.

Due to the resultant ionic charges, the polar water molecules attract the resultant ions and potassium nitrate ions become hydrated, that is, surrounded by water molecules.

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Potassium, the cation, attracts the partially negative end of water molecules by attracting via oxygen atom.

3 0
3 years ago
Ammonium Iodide dissociates reversibly to ammonia and hydrogen iodide:
NeTakaya

Answer:

The partial pressure of ammonia at equilibrium when a sufficient quantity of ammonium iodide is heated to 400°C Is 0.103 atm.

The correct option is A.

Explanation;

NH4I(s) ⇋ NH3(g) + HI(g)Kp = 0.215 at 400°C

NH4I(s)= 0.215

NH3(g)=0.103

HI(g)Kp=0.112

Therefore = 0.103 +0.112= 0.215

Therefore the partial pressure of ammonia at equilibrium is 0.103 atm

7 0
3 years ago
What is the coefficient for water after the equation is balanced?
Pie

Answer:

1

Explanation:

6 0
3 years ago
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