What’s some facts about atoms and elements

Chemistry

2 answers:

Ilya [14]2 years ago

6 0

Answer:

There are alot of facts but here are a few

Explanation:

Atoms:

There are 3 parts to an atom

Protons have a positive electrical charge

Atoms are the smallest particles to make an element

Elements:

Hydrogen is the most common element in the world

An element is a substance that is made entirely from one type of atom.

An element is a substance that cannot be broken down into any other substance.

Contact [7]2 years ago

3 0

Answer:

Dmitri Mendeleyev is the inventor of the modern periodic table.

The majority of the elements are metals.

Atoms are made of tiny particles called protons, neutrons and electrons. Protons and neutrons clump together to form a central nucleus. The electrons move in a cloud-like region around the nucleus.

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Given the following equilibrium constants: Kb B(aq) + H2O(l) ⇌ HB+(aq) + OH−(aq) 1/Kw H+(aq) + OH−(aq) ⇌ H2O(l) What is the equi

bija089 [108]

Answer: The value of $K_c$ for the net reaction is $\frac{K_b}{K_w}$

Explanation:

The given chemical equations follows:

Equation 1: $B(aq.)+H_2O(l)\rightleftharpoons HB^+(aq.)+OH^-(aq.);K_b$

Equation 2: $H^+(aq.)+OH^-(aq.)\rightleftharpoons H_2O(l);\frac{1}{K_w}$

The net equation follows:

$B(aq.)+H^+(aq.)\rightleftharpoons HB^+(aq.);K_c$

As, the net reaction is the result of the addition of first equation and the second equation. So, the equilibrium constant for the net reaction will be the multiplication of first equilibrium constant and the second equilibrium constant.

The value of equilibrium constant for net reaction is:

$K_c=K_1\times K_2$