Define elements and compounds, Chemistry

Assignment Help:

Q. Define Elements and Compounds?

Pure substances are categorized into two categories that are elements and compounds. An element is a substance that can't be separated into simpler substances. Carbon, Oxygen, sulphur, aluminium, iron, and gold are elements. Above 110 elements are known but only 91 take place naturally on Earth. The residue have been created by scientists.


Related Discussions:- Define elements and compounds

The azimuthal quantum number is related to, The azimuthal quantum number is...

The azimuthal quantum number is related to: (1)  Size (2) Shape (3) Orientation     (4) Spin Ans:  Shape

Non-ideal gases, Perfect gases are assumed to be comprised of infinitesimal...

Perfect gases are assumed to be comprised of infinitesimally small particles and to interact only at the point of collision. At intermediate pressures, the volume of the gas become

Calculate the value for the standard molar reaction entropy, Calculate the ...

Calculate the Value for the Standard Molar Reaction Entropy? Derive an expression for the standard molar reaction entropy of a reaction that can be used to calculate its

Electron transfer and ion formation, Q.What do you mean by Electron Transfe...

Q.What do you mean by Electron Transfer and Ion Formation? Ans. Positive and negative ions do not form independently. The loss and gain of electrons means the electrons m

The type of orbitals present in fe is, The type of orbitals present in Fe ...

The type of orbitals present in Fe  is : (1) s                       (2) s  and p     (3)  s, p and d            ()s, p, d, and f Ans: s, p and d

Significant properties of permanent magnetic materials, What are the most s...

What are the most significant properties of permanent magnetic materials? Explain. Ans: The most significant properties of permanent magnetic materials are (i) Remanen

Example on law of conservation of mass, Q. Example on Law of Conservation o...

Q. Example on Law of Conservation of Mass? A slim strip of iron with a mass of 15.72 g is placed in to a solution containing 21.12 g of copper and copper (II) sulphate begins t

What is the foundation of cold and hot working, What is the foundation of c...

What is the foundation of classification of cold and hot working? Cold and hot working: Changing the shape of material by extrusion, forging, rolling, drawing involves pl

Determine total energy of the electrons of hydrogen atom, The ratio between...

The ratio between kinetic energy and the total energy of the electrons of hydrogen atom according to Bohr's model is: (1) 2 : 1  (2)1 : 1      (3)1 : - 1           (4)

Stoichiometry, How do i calculate the number of grams of CO that can react ...

How do i calculate the number of grams of CO that can react with .150kg of Fe2O3?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd