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Elina [12.6K]
2 years ago
6

3. Write balanced ionic equations to show the dissolution of the following compounds in water: a) magnesium chloride​

Chemistry
1 answer:
melamori03 [73]2 years ago
7 0

Answer:

MgCl2 + H2O

Explanation:

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Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 15.4 u.
mixas84 [53]

Answer:

N, B, Be, C

Explanation:

N (Nitrogen) has 14.0067 B (Boron) has 10.81 Be (Beryllium) has 9 and C (Carbon) has 12

8 0
2 years ago
f the Ksp for HgBr2 is 2.8×10−14, and the mercury ion concentration in solution is 0.085 M, what does the bromide concentration
goldfiish [28.3K]

Answer:

0.057 M

Explanation:

Step 1: Given data

Solubility product constant (Ksp) for HgBr₂: 2.8 × 10⁻⁴

Concentration of mercury (II) ion: 0.085 M

Step 2: Write the reaction for the solution of HgBr₂

HgBr₂(s) ⇄ Hg²⁺(aq) + 2 Br⁻

Step 3: Calculate the bromide concentration needed for a precipitate to occur

The Ksp is:

Ksp = 2.8 × 10⁻⁴ = [Hg²⁺] × [Br⁻]²

[Br⁻] = √(2.8 × 10⁻⁴/0.085) = 0.057 M

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3 years ago
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Vaselesa [24]

Answer:

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Explanation:

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When atoms combine, the force of attraction that holds them together is a(
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Electrostatic, meaning the attraction from one's positive nucleus is to the negative electrons of the other atom and vis versa.
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