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3 years ago

When a Arrhenius base is dissolved in h2o the only negative ion present is what solution

1 answer:

4 0

An arrhenius base is defined as a base substance that increases the concentration of OH- ions when added to water.

When adding arrhenius base to water, the solution will have:
the base, H+ ions and OH- ions

Therefore, as we can note, the only negative ion that would be available in the solution is the OH- ion

Hope this helps :)

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What would the volume of a gas be at 150c if had of volume of 693 ml at 45 c

Vlad1618 [11]

Answer:

Explanation:

T1 = 150°C = (150 + 273.15)K = 423.15K

T2 = 45°C = (45 + 273.15)K = 318K

V1 = 693mL = 693cm³

Applying Charle's law, the volume of a given gas is directly proportional to is temperature provided that pressure remains constant.

V = kT

V1 / T1 = V2 / T2

693 / 423.15 = V2 / 318

V2 = (693 * 318) / 423.15 = 520.79cm³

The new volume of the gas is 520.79cm³

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3 years ago

Mg(OH)2+2 HCI = MgCI2+ H2O

In-s [12.5K]

Answer:

Mg(OH)2 + 2HCI ⇒ MgCI2 + 2H2O

Explanation:

In order to balance a chemical equation you need to make sure both sides of the equations are equal.

Mg(OH)2 + 2HCI = MgCI2 + H2O

Mg = 1

Oh = 2

HCI = 2

Products:

Mg = 1

CI = 2

H = 2

O = 1

2H20 = 1 × 2 = 2

2 × 2 = 4

2HCI

1 × 2 = 2

Mg(OH)2 + 2HCI ⇒ MgCI2 + 2H2O

Hope this helps.

7 0

3 years ago

Which of the following did Mendeleev not believe in because he could not see them?

Zigmanuir [339]

Answer:atoms

Explanation:

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3 years ago

What is the relationship between atomic numbers and atomic radii of elements in group 2a

ozzi

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