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3 years ago

1. Make a claim that answers the following question: "What is the

Chemistry

1 answer:

Nonamiya [84]3 years ago

6 0

Lets take an example to explain this

Sodium(Na) has 1 electron in its outer or valence shell hence it will lose it and become a cation say to Chlorine(Cl)

To form Sodium Chloride.

Since it is capable of losing electrons, Sodium becoems a metal and has properties of metal

Whereas Chlorine which has 7 electrons in its valence shell gains an electrons to become an anion

Hence it is a non metal

And has the properties of an anion

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Which of the following breaks and forms bonds?

svp [43]

Your answer would be "Chemical Change"

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3 years ago

An aqueous solution at 25.0°C contains [H+] = 0.075 M. What is the pH of the solution?

olasank [31]

Answer:

1.131

Explanation:

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H^+=0.074

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3 years ago

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3 years ago

Calculate number of moles of 4.4g of CO2 and 5.6L of NH3 . Pls help . Its urgent

kupik [55]

Moles of CO₂ = mass / molecular weight
Moles of CO₂ = 4.4 / (12 + 16 x 2)
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4 years ago

Cohesion, adhesion, and surface tension are characteristics of water that ________. increase when pH increases increase when tem

Ray Of Light [21]

Answer:

are a result of hydrogen bonding.

Explanation:

The surface tension is the amount of energy required to stretch or increase the surface of a liquid by a unit area. Liquids that have strong intermolecular forces also have high surface tensions. Thus, because of hydrogen bonding, water has a considerably greater surface tension than most other liquids.

Another example of surface tension is capillary action. A thin film of water adheres to the wall of the glass tube. The surface tension of water causes this film to contract, and as it does, it pulls the water up the tube. Two types of forces bring about capillary action.

One is cohesion, which is the intermolecular attraction between like molecules (in this case, the water molecules). The second force, called adhesion, is an attraction between unlike molecules, such as those in water and in the sides of a glass tube. If adhesion is stronger than cohesion, the contents of the tube will be pulled upward. This process continues until the adhesive force is balanced by the weight of the water in the tube.

This characteristics of water are a consequence of a particularly strong type of intermolecular attraction, called the hydrogen bond, which is a special type of dipole-dipole interaction between the hydrogen atom in a polar bond, such as N-H, O-H, or F-H, and an electronegative O, N, or F atom.

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3 years ago