The smallest unit that retains the properties of an element is a(n) _____.

Biology

2 answers:

elena-s [515]4 years ago

8 0

The given blank can be filled with the atom.

An atom is the minutest component of a matter, which exhibits the characteristics of a chemical element. Every liquid, solid, plasma, and gas comprises ionized or neutral atoms.

The atoms are extremely small, the usual sizes are about 100 picometers. Each atom contains a nucleus and one or more electrons combined with the nucleus. The nucleus is formed of one or more protons and usually a same number of neutrons.

DENIUS [597]4 years ago

3 0

<span>The smallest unit that retains the properties of an element is an atom. An atom is the smallest unit of matter that has the element's properties and every state of matter is composed of atoms.</span>

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sodium (NA) and water (H2O undergo a chemical reaction that produces sodium hydroxide (NaOH) and hydrogen gas (H2). Which equati

natita [175]

Answer:

There are no options in this question, however, the equation can be provided. The answer is:

2Na + 2H2O --> 2NaOH + H2

Explanation:

This question is deacribing the equation between sodium (Na) and water (H2O) to produce sodium hydroxide (NaOH) and hydrogen gas (H2). The equation originally is as follows:

Na + H2O --> NaOH + H2

From the above equation, one would notice that it is not balanced because the number of atoms of each element is not the same on both sides of the equation. Hence, to balance the equation, a coefficient is used to make sure the same number of atoms of each element are on both sides.

We have;

2Na + 2H2O --> 2NaOH + H2

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