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qwelly [4]
2 years ago
7

How many atoms are in 6.5 moles of zinc

Chemistry
2 answers:
vovangra [49]2 years ago
8 0

Answer:

many atoms are in 6.5 moles of zinc? 6.5 moles. 6.02 x 10. 23 atoms =.

3 pages

Explanation:

krok68 [10]2 years ago
7 0

Answer:

many atoms are in 6.5 moles of zinc? 6.5 moles. 6.02 x 10. 23 atoms =.

3 pages

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Boyles Law P1V1 = P2V2
arsen [322]

Answer:

A. The balloons will increase to twice their original volume.

Explanation:

Boyle's law states that the pressure exerted on a gas is inversely proportional to the volume occupied by the gas at constant temperature. That is:

P ∝ 1/V

P = k/V

PV = k (constant)

P = pressure, V = volume.

P_1V_1=P_2V_2

Let the initial pressure of the balloon be P, i.e. P_1=P, initial volume be V, i.e. V_1=V. The pressure is then halved, i.e. P_2=\frac{P}{2}

P_1V_1=P_2V_2\\\\P*V=\frac{P}{2} *V_2\\\\V_2=\frac{2*P*V}{P}\\\\V_2=2V

Therefore the balloon volume will increase to twice their original volume.

3 0
3 years ago
Calculate the solubility of Mg(OH)2 in water at 25 C. You'll find Ksp data in the ALEKS Data tab. Round your answer to significa
elena-s [515]

Answer:

1.12 × 10⁻⁴ M

Explanation:

Step 1: Write the reaction for the solution of Mg(OH)₂

Mg(OH)₂(s) ⇄ Mg²⁺(aq) + 2 OH⁻(aq)

Step 2: Make an ICE chart

We can relate the solubility product constant (Ksp) with the solubility (S) through an ICE chart.

       Mg(OH)₂(s) ⇄ Mg²⁺(aq) + 2 OH⁻(aq)

I                                0                    0

C                              +S                +2S

E                                S                  2S

The solubility product constant is:

Ksp = 5.61 × 10⁻¹² = [Mg²⁺] × [OH⁻]² = S × (2S)² = 4S³

S = 1.12 × 10⁻⁴ M

8 0
3 years ago
If I DECREASE the mass and INCREASE the distance, what happens to the force of gravity?​
Lapatulllka [165]

Answer:

Decreases

Explanation:

F = GM1M2/R²

please mark me brainliest and 5 star

4 0
3 years ago
A metal(ii) ion solution of unknown concentration shows an absorbance of 0.55. what is the molar concentration of the metal (ii)
torisob [31]
Cover with metal .Any elements other than hydrozen and helium concentration shows an absorbance
4 0
3 years ago
T’Keyah puts salt in ice water and then in boiling water to see which will dissolve faster.Which dissolving rate factor is she t
WARRIOR [948]

Answer:

temperature

Explanation:

its in the book

8 0
2 years ago
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