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Ghella [55]
4 years ago
5

If most objects are made up of free space then why can we put our hands through a book or wall?

Chemistry
1 answer:
Mazyrski [523]4 years ago
4 0
I suppose you mean to ask why we can't go through obstacles.

Any atom is surrounded by an electronic cloud. When two atoms get close to each other, the electronic clouds repel each other, preventing them from interpenetrating each other. That same phenomenon, on a larger scale, prevents us from going through matter.
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What does an algae cell, tree,mushroom, and animal have in common
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Each one is a living organism.
5 0
4 years ago
Sodium oxide contains Na+ ions and O2- ions.<br> Give the formula of sodium oxide
mixer [17]
To be honest, I learned this in school so I'll tell you XD

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8 0
3 years ago
How many moles of aluminum oxide will be produced from 0.50 mol of oxygen? 4 al + 3 o2 2 al2o3?
LuckyWell [14K]
From the equation;
 4 Al + 3 O2 = 2 Al2O3
The mole ratio of Oxygen is to Aluminium hydroxide is  3:2.
Therefore; moles of Al2O3 is 
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5 0
3 years ago
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Which equation has both a liquid and a gas as products? 2 upper H g upper O (s) right arrow 2 upper H g (l) plus upper O subscri
Mandarinka [93]
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Chemical reaction

It is the reactants react to form products .

Chemical equation

It is the method of representing reaction in terms of moles , specifying states , symbols , molecular formulas etc .

This actually gives the complete info about the reaction .

In the above asked question or any other question we can specify the states by writting :

Solid as "S".

Liquid as "L"

Gas as (g).

8 0
4 years ago
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tiny-mole [99]

Answer:

Would it be<em><u> 7.69 seconds</u></em>?

Explanation:

5 0
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