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3 years ago

Which ion is the only negative ion produced by an Arrhenius base in water?

1 answer:

6 0

According to Arrhenius Theory of acids and bases, an Arrhenius base, when dissolving in water, produces the only negative ion: OH-.

Therefore, (3) OH- is the correct answer.

Hope this is helpful~

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In a mixture of 3 gases what is the total pressure of the gases if Gas A exerts a pressure

kirill [66]

Answer:

760 mm of Hg

Explanation:

If the gases A , B and C are non reacting , then according to Dalton's Law of Partial Pressure the total pressure exerted is equal to sum of individual partial pressure of the gases .

If there are n , number of gases then ,

$P_{total}= P_1+P_2+P_3+\dots +P_n$

Here ,

Partial pressure of Gas A = 400mm of Hg
Partial pressure of Gas B = 220 mm of Hg
Partial pressure of Gas C = 140mm of Hg

Hence the total pressure exerted is ,

$P_{total}= P_{Gas\ A }+P_{Gas\ B }+P_{Gas\ C }$

Substitute ,

$P_{total}=( 400 + 220 + 140 )mm\ of \ Hg$

Add ,

$P_{total}= 760\ mm\ of \ Hg$

Hence the total pressure exerted by the gases is 760 mm of Hg.

I hope this helps.

4 0

3 years ago

After passing, it is important to always follow through. T/F

VMariaS [17]

Answer:

Explanation:

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3 years ago

When the temperature in a room increases from 25°C to 33°C, changes from a solid to a liquid.

mr Goodwill [35]

Answer:

true

Explanation:

Because ice melts if the temperature increasese

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3 years ago

BRAINLIEST AWARD PLZ HELP :)

Vera_Pavlovna [14]

Properties of metals:
High melting points
High density
Ductile
Malleable
Good conductors of electricity
Good conductors of heat

I think if you added a proton you would have chlorine.

The noble gasses are the he chemical elements in group 18 of the periodic table. The gasses in this family include helium, neon, argon, krypton, xenon, and radon. All these gasses are colorless are oderless, elements in this family have atoms with a full outer shell of electrons. They are also called inert gasses.

Six valence electrons

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3 years ago

Read 2 more answers

Which statement gives a reason why scientist think that the universe began with an explosion

yaroslaw [1]

I believe the answer is

At the moment it is the best way of explaining our scientific knowledge.

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4 years ago