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3 years ago

GAS LAW PROBLEMS:

Chemistry

1 answer:

lesya692 [45]3 years ago

3 0

Answer:

Explanation:

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What trend does the first ionization energy follow going across the periodic table?

djyliett [7]

Explanation:

Ionization energy is defined as the energy necessary to remove an electron from a gaseous atom or ion.

Therefore, smaller is the size of an atom or ion more energy it needs to remove an electron because more is the charge on an ion smaller will be its size.

Hence, more will be the attraction between nucleus and valence electrons of the atom. So, more difficulty is faced by the atom to lose an electron. As a result, ionization energy will increase.

Across the period, there will be decrease in size of elements of the periodic table.

Thus, we can conclude that there will be increase in first ionization energy across the periodic table.

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3 years ago

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Why concentrated acid is hazardous material

Setler [38]

Answer:

Here's it.

Explanation:

Concentrated acids are very corrosive and dangerous chemicals that are commonly encountered in the laboratory. ... Concentrated acids may be fatal if inhaled; and can cause severe eye and skin burns, severe respiratory and digestive tract burns. Contact with other materials may cause a fire.

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3 years ago

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Two atoms that share one electron each between have a ?

evablogger [386]

Answer:

Covalent bond

Explanation:

A covalent bond is defined as the sharing of election pairs between atoms

8 0

3 years ago

Why is the atmospheric pressure lower on a high mountain peak than at sea level

Elenna [48]

The earths gravity attracts the molecules and collects the most near the surface. They all have weight and therefore have more pressure at the surface, as well. As you go higher, the attraction becomes less and these molecules some times fly off into space. This layer of equilibrium has the least of weight or pressure.

The various pressures are measured by precision instruments called barometers or pressure sensors and expressed in inches of mercury or millibars. Air has a weight too, although not very much, If you "pile" the air mile high, the bottom pressure is heavier because of all the air sitting on top of it, therefore the pressure decreases with altitude, because there is less air "piled up" 
An analogy would be the same with water.

Planes have these instruments that tells the crew the altitude above sea level they are at when flying.

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4 years ago

Using the Brønsted-Lowry concept of acids and bases, identify the Brønsted-Lowry acid and base in each of the following reaction

Luden [163]

Answer:

1. HSO³⁻(aq) + H₂O(l) → H₂SO₃(aq) + OH⁻(aq)

The Brønsted-Lowry acid is H₂O and the Brønsted-Lowry base is HSO³⁻

2. (CH₃)₃N(g) + BCl₃(g) → (CH₃)₃NBCl₃(s)

There are no Brønsted-Lowry acids and bases in this reaction.

Explanation:

According to the Brønsted-Lowry concept, when an acid (HA) and a base (B) undergoes a chemical reaction, the acid (HA) loses a proton and forms its conjugate base (A⁻), whereas the base gains (B) the proton to form its conjugate acid (HB⁺).

The chemical equation for this reaction is:

HA + B ⇌ A⁻ + HB⁺

Given reactions:

1. HSO³⁻(aq) + H₂O(l) → H₂SO₃(aq) + OH⁻(aq)

The Brønsted-Lowry acid is H₂O and the Brønsted-Lowry base is HSO³⁻

Reason: In this reaction, the acid H₂O loses a proton and forms its conjugate base, OH⁻. Whereas, the base HSO³⁻ gains a proton to form its conjugate acid, H₂SO₃.

2. (CH₃)₃N(g) + BCl₃(g) → (CH₃)₃NBCl₃(s)

There are no Brønsted-Lowry acids and bases in this reaction.

Reason: In this reaction, there is no exchange of proton between the acid and the base.

4 0

3 years ago