El hielo es una mezcla, elemento o compuesto?

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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Final answer:

Lithium is an element that has chemical properties most similar to sodium.

Explanation:

Out of the given options, lithium is the element that has chemical properties most similar to sodium.

Sodium and lithium are both in Group 1 of the periodic table, also known as the alkali metals. Alkali metals have similar properties because they all have one valence electron, which makes them highly reactive.

For example, like sodium, lithium reacts vigorously with water to produce hydrogen gas and a hydroxide:

2Li(s) + 2H2O(l) → 2LiOH(aq) + H2(g)

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Answer:

placing the reactants on a hot plate

Explanation:

If the temperature goes up, the reaction rate will increase. Because the particle will move faster and makes the kinetic energy larger.