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Why are silicon and oxygen the main elements in the Earth's crust?
To start off, Silicon and oxygen are among the most abundant elements in the universe: oxygen is the third most common element and silicon is the seventh. They readily combine to form silicon dioxide (silica), making it one of the most common solid materials in the universe. Additionally, silica is less dense than many other abundant substances within Earth. Therefore when Earth formed, the more silica-rich materials tended to float toward the surface.
What happens when earths two most abundant elements are combined?
The two most abundant elements in the Earth's crust are oxygen and silicon. When you combine them, you get silicon dioxide; which depending on the exact form it takes is glass or quartz or sand.They tend to combine further with other elements to produce silicate rocks.The two most abundant elements in Earth as a whole are iron and oxygen. When you combine them, you get iron oxide (rust, hematite, magnetite). The reason iron isn't more common in the crust than it is is that it's heavy and has been concentrated in the Earth's core.
What is the comparative form of forgetful?
"More forgetful" is the comparative form of forgetful. "Most forgetful" is the superlative form. There is no such word as "forgetfuller".
What is the comparative form exciting?
most thrilling
How do you create a dance?
You use your mind to think of a dance step or more so that you can combine it together, so you can pick your music and practice all you can... :)
What forms when two or more materials combine chemically?
When two or more materials combine chemically, they from a substance. When two or more materials combine and they do not react with each other, they form a mixture.
When two or more materials combined chemically they form?
A compound is formed when two or more materials chemically combine. If two materials combine physically, it is known as a mixture.
Two or more materials that combine chemically form what?
They form a compound.
What is it when two or more materials combine chemically?
It is called a chemical reaction.
When two or more elements combine they form a?
compound is when two or more elements combine chemically
When 2 or more elements chemically combine they form a?
compound
When two or more elements combine chemically they form what?
compound
When two or more elements combine chemically they form a what?
Comppund
When 2 or more elements combine chemically they form?
Compund
What two or more elements combine chemically they form an?
a compound
When 2 or more atoms combine chemically they form an?
Chemical compound, which may be molecular or ionic.
What is it called when two or more materials combine chemically?
When two or more materials combine chemically, it is called a chemical reaction. This process involves the breaking and forming of chemical bonds between the atoms of the different materials, resulting in the formation of new substances with unique properties.
