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Q12: Differentiate between:<br>A.An atom and an ion<br>B.An atom
Q24: What is the formula for the compound
Q44: Water is a chemical element.
Q59: The number of protons in an atom
Q66: Carbon monoxide is a colorless odorless gas
Q67: The limiting reactant in a chemical reaction
Q70: Which phase change absorbs energy?<br>A)HOH (l)
Q81: Groups or families of elements are arranged
Q85: How many kiloJoules of heat energy are
Q108: H<sub>2</sub>SO<sub>4</sub> is hydrosulfuric acid.