Water(H2O) is composed of the same elements as carbon monoxide (CO). How do their properties compare?A. They have the same properties because they have the same arrangement of atoms.
B. They have different properties because the arrangement of atoms is different.
C. They have the same properties because they have the same atoms.
D. They have different properties because they have different atoms.

Answer is B.

Explanation:

Ionic compounds are the compounds formed by transfer of electrons between its atoms. Atoms of ionic compounds have opposite charge and that is why these atoms are held together by strong forces of attraction.

As a result, melting point of ionic compounds is high.

Whereas molecular solids are attached by weak Vander waal forces, that is, melting point of molecular solids is low.

Thus, we can conclude that compared to the melting points of ionic compounds, the melting point of molecular solids tend to be low.

Cubic metre is the metric unit for measuring volume. The cubic centimetre has a particular nomenclature called a millilitre.

The 3-dimensional space that is occupied by matter or surrounded by a surface is measured in volume, which is expressed in cubic units. A derived unit called the cubic metre serves as the SI unit of volume.

A unique designation for the cubic decimeter is the litre. To reduce the chance of confusion between the lowercase letter "ell" (l) and the number one (1), the symbol for the litre is an uppercase letter "ell". The litre cannot be represented by the script letter l (l).

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The correct answer fro above statement is:

False

Explanation:

Some elements in the atmosphere start the body and are consistent when they are dropped. Others are diminishing. Degradation stocks may be more lethal or less virulent than the first chemical. Other chemicals are deposited momentarily in the organs and are discharged shortly after. After a while, most chemicals and degradation stocks are ordered of as body waste, in the stool, urine, sweat and breathed air.

Answer:

false

Explanation:

The rate at which molten rock material cools affects the size of the mineral grains. The longer it cools, the larger the crystals become.

What is mineral?

• A mineral is a naturally occurring substance that has distinct chemical and physical properties, composition, and atomic structure.

• An economic mineral is a broader term that includes minerals, metals, rocks, and hydrocarbons (solid and liquid) extracted from the earth through mining, quarrying, and pumping.

• A mineral exists as inorganic element or compound that occurs naturally and has an orderly internal structure as well as a distinct chemical composition, crystal form, and physical properties.

• Quartz, feldspar, mica, amphibole, olivine, and calcite are examples of common minerals. Minerals are elements found on the earth and in foods that our bodies require for normal development and function.

• Calcium, phosphorus, potassium, sodium, chloride, magnesium, iron, zinc, iodine, chromium, copper, fluoride, molybdenum, manganese, and selenium are all necessary for good health.

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Answer:

Explanation:

The electronic configuration of chlorine can be written as 2, 8, 7. ... Therefore, valence electron in chlorine is 7 and it needs to gain 1 electron from the outermost orbit to attain octet. Hence, the valency of chlorine is 1.