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dangina [55]
3 years ago
10

Definition of periodic trends

Chemistry
1 answer:
Dmitriy789 [7]3 years ago
7 0

Answer:

.Periodic trends are specific patterns in the properties of chemical elements that are revealed in the periodic table of elements. Major periodic trends include electronegativity, ionization energy, electron affinity, atomic radii, ionic radius, metallic character, and chemical reactivity.

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Question 2: you have two systems: 1) solid gold and water 2) solid sodium and waterWhich one can spontaneously release energy an
Valentin [98]

Hey there!

Solid Sodium and water will react spontaneously and release energy.  This is based on the reactivity series. Sodium is a highly reactive metal and hence, it is placed at the top of the reactivity series. This is because it loses its outermost electron very readily. When it comes in contact with water, it reacts with it violently to form sodium hydroxide and hydrogen gas. This reaction is exothermic and hence, accompanied with a release of energy.  Gold lies at the bottom of the reactivity series as it is very stable and does not give away its outermost electrons easily. Therefore, when it comes in contact with water, there is no reaction and no release of energy.

7 0
3 years ago
What's an example of chemical reaction
sergeinik [125]
S + O = SO4. cracked also chemical reaction
6 0
3 years ago
Describe the three steps of solution formation. be sure to include the details regarding the dissolving of the substance
Elza [17]

The three steps involve;

Step 1: Separation/expansion of the solute particles

Step 2: Separation/expansion of the solvent particles

Step 3; Combining the solute and solvent particles


The first two steps are usually endothermic. Step 3, nonetheless, can be either exothermic or endothermic and is significant in determining whether the dissolving process will be endothermic or exothermic.


8 0
3 years ago
Read 2 more answers
Explain why trees are a renewable resource and how this resource can me maintained
Contact [7]

Trees are renewable resources because they can be replaced in a single lifetime and are replaced faster than they are harvested and used.

It can be maintained by responsible harvesting and use. One policy that many lumber companies advertise is that they plant a seed for every tree that they chop down.

Hope this helps! :)

7 0
3 years ago
Is soda an acid or a base
Aneli [31]

Answer:

It's an Acid

Explanation:

cuz of the Co2 and it's naturally acidic nature

4 0
3 years ago
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