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Chemistry
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Describe the stages of a heterogeneous catalyst reaction route.

The reactants adsorb to an active site on the surface of the catalyst. The active site places the reactants in an orientation that allows them to easily react. The reaction then occurs an...

Answered by Oliver G. Chemistry tutor
1376 Views

How do I work out the formula of ionic and covalent compounds?

First, ionic compounds form bonds by transferring electrons from their outer shell. Covalent compounds form bonds by sharing electrons within their outer shell. The number of electrons in the outer shell ...

Answered by Mercedes B. Chemistry tutor
2100 Views

Why does silicon dioxide have a higher melting point than sulphur?

Silicon dioxide (SiO2) has a macromolecular structure. This means that it forms thousands of covalent bonds between its silicon and oxygen subunits. Sulphur trioxide (SO3), meanwhile, has a simple covalen...

Answered by Jacob L. Chemistry tutor
24781 Views

Describe and explain one anomalous property of water.

One anomalous property of water is that when in its solid phase (ice) it is less dense than when it's in its liquid phase. This arises because of the hydrogen bonding network that exists between water mol...

Answered by Dan E. Chemistry tutor
11000 Views

Explain why the atomic radii of the elements decrease across Period 3 from sodium to chlorine

As you go across the period from sodium to chlorine, the number of protons in the nucleus increase.As protons are positively charged, they attract the outer electrons; as the number of protons increase, t...

Answered by Eve C. Chemistry tutor
3400 Views

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