What is the formal charge on the oxygen atom in this structure?    (Hint: Formal charge = # of initial valence electrons – # of bonds – # of unshared electrons)

What products form from the double displacement reaction of HI with potassium hydroxide?

When the following equation is balanced the coefficient of oxygen gas is _______. __C3H4(g) + __O2(g) → __CO2(g) + __H2O(g)

What is the correct formula for nitric acid? (Hint: -ic acid → -ate or -ous acid → -ite)

When magnesium metal and chlorine gas undergo a combination reaction. What is the formula of the resulting compound?

What is the coefficient of potassium chloride when the following equation is balanced? __KClO3(aq) → __KCl(aq) + __O2(g)

When the following equation is balanced the coefficient of carbon dioxide gas is _______. __C3H4(g) + __O2(g) → __CO2(g) + __H2O(g)

When solid calcium carbonate is heated, it forms two new compounds, solid calcium oxide, and carbon dioxide gas. This is an example of a _______ reaction.

  SECTION C     QUESTION 5 The following photo shows the results obtained after litmus paper was used to determine the pH of two different substances A and B. Right click on the blue button below to view the photo of the results in a new tab to answer the questions that follow:           

4.2 Write a chemical equation for the reaction of phosphorus with oxygen (you do not need to balance the equation). (2)