Sun and air Study the seaside image for a few seconds . Try to describe it: You might say that the image shows : A calm sea,  clear blue sky, bright sunshine and a perfectly smooth beach. You could describe it in terms of the states of matter visible: SOLID Sand LIQUID Sea GASAir GAS + PLASMASun But as a chemist y...

compounds, elements or mixtures, ecosystems or environments? 

 Sun and air? Study the seaside image for a few seconds . Try to describe it: You might say that the image shows : A calm sea, clear blue sky, bright sunshine and a perfectly smooth beach. You could describe it in terms of the states of matter visible:  SOLID Sand LIQUID Sea GASAirGAS and PLASMASun As a chemistry student you might be...

When non-metal atoms bond to other non-metal atoms they share electrons to form covalent bonds.   1.46 Activity 2. Crossing and dotting  Students should: 1.46 understand how to use dot-and-cross diagrams to represent covalent bonds in molecules. Dot and cross diagrams are a useful way of representing how atoms share electro...

 1.23 Family resemblances Hydrogen is often listed above group 1 the Alkali metals. Although like group 1 atoms, hydrogen atoms have a single electron in their outer shell, Hydrogen is not a metal.  Students should: 1.23 understand why elements in the same group of the Periodic Table have similarchemical properties 1.24 und...

An ester called ethyl butanoate is present in pineapples.

Esters are organic compounds that contain an ester functional group. An ester functional group is a COO group. 3D version of the ester methyl ethanoate  Esters are named from the alcohols and carboxylic acids they were created from : (Eg. methanol + ethanoic acid => methyl ethanoate + water) Ingredients: Sulfuric acid Ethanol...

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 Earth's vital delicate shield OCREDEXCELOCR Enter your text here ... Enter your text here ... A clear and concise explanation of  how ozone forms and is depleted.

Covalent bonding can lead to the formation of lattices

Covalent bonds form when electrons are shared between nuclei Atoms which can form two or more covalent bonds can bond with other similar atoms or themselves and form covalent lattices. Carbon in the form of diamond is a good example,  as is silicon dioxide in the form of quartz. A valuable lattice   Activity. Diamond - clos...

Ice melts at 0 degrees C, Diamond remains solid until its temperature is above 3500 degrees

Look at the images of ice and diamond.  In some senses you might say the two substances are similar.  Both substances are solid,  transparent and crystalline. In terms of bonding, they have similarities too :   In ice, atoms of oxygen are held to hydrogen atoms by covalent bonds. In diamond atoms of carbon ar...