classify the compounds according to their states
(water, copper sulphate, ammonia, acetic acid, sodium hydroxide, methane, nitric acid, zinc carbonate, silica, nitrogen -di-oxide
Answers
Answer:
By the end of this section, you will be able to:
• Derive chemical equations from narrative descriptions of chemical reactions.
• Write and balance chemical equations in molecular, total ionic, and net ionic formats.
The preceding chapter introduced the use of element symbols to represent individual atoms. When atoms gain or lose
electrons to yield ions, or combine with other atoms to form molecules, their symbols are modified or combined to
generate chemical formulas that appropriately represent these species. Extending this symbolism to represent both the
identities and the relative quantities of substances undergoing a chemical (or physical) change involves writing and
balancing a chemical equation. Consider as an example the reaction between one methane molecule (CH4) and two
diatomic oxygen molecules (O2) to produce one carbon dioxide molecule (CO2) and two water molecules (H2O). The
chemical equation representing this process is provided in the upper half of Figure 4.2, with space-filling molecular
models shown in the lower half of the figure.