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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 of ...
MB
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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 covalent s...
JL
Answered by Jacob L. • Chemistry tutor
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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 molecu...
DE
Answered by Dan E. • Chemistry tutor
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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, the ...
EC
Answered by Eve C. • Chemistry tutor
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A compound is found to contain 37.21% carbon, 7.75% hydrogen and 55.04% chlorine. What is it's empirical formula?

Carbon: 37.21/12= 3.1Hydrogen:7.75/1=7.75Chlorine: 55.04/35.5=1.55Ratio:c:H:Cl3.1:7.75:1.552:5:1Therefore empirical formula= C 2 H 5 Cl
LP
Answered by Lucy P. • Chemistry tutor
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