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The useful thing is that different elements have been grouped together on the periodic table so that it's easy to see which ones share something in common. Group 1 elements become 1+, Group 2 becomes 2+, ...
Graphite is carbon-based, formed of multiple sheets of carbon atoms. The carbon atoms are bound to three neighbouring carbon atoms by covelent bonds, leaving a free electron which can conduct current thro...
NaCl is a complex molecule involving Na and Cl.
Na is positively charged and Cl is negatively charged. As a result, the type of bonding cannot be covalent (as the molecules have charge), cannot be ...
A catalyst is a substance which provides an alternative pathway requiring a lower activation energy for the chemicals to react, and speeds up the rate of reaction. A catalyst also remains chemically uncha...
Calculating the mass of 1 molecule of ammonia:
Mass = ( Number of hydrogen atoms x Mass of hydrogen atom) + ( Number of nitrogen atoms x Mass of nitrogen atoms)
Mass = ( 3 x 1 ) + ( 1...
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