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3 years ago

What is ment by evaporation?

Chemistry

1 answer:

postnew [5]3 years ago

7 0

Evaporation is when there is water, and then heat causes that water to rise in particles.

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55. What is total no of shared electrons in ethane?

Sergio039 [100]

Answer:

There are eight shared electron pairs.

Explanation:

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2 years ago

Consider the chemical equation below.

igor_vitrenko [27]

Answer : The net ionic equation will be,

$2H^{+}(aq)+2OH^-(aq)\rightarrow H_2O(l)$

Explanation :

In the net ionic equations, we are not include the spectator ions in the equations.

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

The given balanced ionic equation will be,

$Mg(OH)_2(aq)+2HNO_3(aq)\rightarrow Mg(NO_3)_2(aq)+H_2O(l)$

The ionic equation in separated aqueous solution will be,

$Mg^{2+}(aq)+2OH^-(aq)+2H^{+}(aq)+2NO_3^{-}(aq)\rightarrow H_2O(l)+Mg^{2+}(aq)+2NO_3^{-}(aq)$

In this equation, $Mg^{2+}\text{ and }NO_3^-$ are the spectator ions.

By removing the spectator ions from the balanced ionic equation, we get the net ionic equation.

The net ionic equation will be,

$2H^{+}(aq)+2OH^-(aq)\rightarrow H_2O(l)$

7 0

3 years ago

Most reactions give off energy in the form of heat and are called what

Alexxandr [17]

That would be exothermic. Exothermic reactions are processes that release energy, usually in the form of heat or light. Energy is released because the total energy of the products is less than the total energy of the reactants.

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3 years ago

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A(n) _____ is a compound that produces hydrogen ions when dissolved in water.

denis23 [38]

<span>An acid is a compound that produces hydrogen ions when dissolved in water. The pH of acid is less than 7 because it is rich in H+ concentration. Basic solutions have pH greater than 7 because it is rich in OH-. Neutral solutions meanwhile have pH equal to 7.</span>

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3 years ago

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A person weighs a different amount on other surfaces in space than they do on Earth because the gravitational pull of each surfa

Masja [62]

Answer:

A. The person weighs 56 pounds more on Mars than on the moon

Explanation:

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3 years ago

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