Examlex
Consider the following incomplete reaction.Choose the formula for the missing substance Y. Mg + 2 Y MgCl2 + H2
Q6: Which is a cation?<br>A)A chloride ion<br>B)A chromate
Q10: CO is a molecular compound.
Q31: As one descends a group on the
Q32: Chemical reactions always produce substances which are
Q39: Zinc oxide contains 80.3% zinc.What size sample
Q40: How many units of MgSO<sub>4</sub> are present
Q44: How many moles of iron(III)oxide are required
Q48: The following reaction: NaOH + HCl
Q57: Dry ice undergoing sublimation is an example
Q78: Which is a chemical change?<br>A)Ice melts<br>B)Alcohol evaporates<br>C)A