
Interpretation:
should be identified as an element or a compound.
Concept introduction:
Elements are those substances that contain only one kind of atom. They can be represented by a unique symbol and can’t be split into simpler substances.
On the other hand, compounds are those substances formed by
Interpretation:
should be identified as an element or a compound.
Concept introduction:
Elements are those substances that contain only one kind of atom. They can be represented by a unique symbol and can’t be split into simpler substances.
On the other hand, compounds are those substances formed by chemical reaction between two or more than two elements. Based on the types of bonding, a compound can be an ionic compound or covalent compound.
Interpretation:
should be identified as an element or a compound.
Concept introduction:
Elements are those substances that contain only one kind of atom. They can be represented by a unique symbol and can’t be split into simpler substances.
On the other hand, compounds are those substances formed by chemical reaction between two or more than two elements. Based on the types of bonding, a compound can be an ionic compound or covalent compound.

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Chapter 1 Solutions
Chemistry for Changing Times
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- Draw the mechanism for the following Friedel-Craft reaction. AlBr3 Brarrow_forward(a) Draw the structures of A and B in the following reaction. (i) NaNH2, NH3(1) A + B (ii) H3O+arrow_forwardFor the reaction 2 N2O5(g) → 4 NO2(g) + O2(g), the following mechanism has been proposed: N2O5 →> NO₂+ NO3_(K1) NO2 + NO3 → N2O5 (k-1) NO2 + NO3 → → NO2 + O2 + NO (K2) NO + N2O5- NO2 + NO2 + NO2 (K3) d[N₂O5] __2k‚k₂[N2O5] Indicate whether the following rate expression is acceptable: dt k₁₁+ k₂arrow_forward
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